Hail Map for Grinnell, IA
The Grinnell, IA area has had 9 reports of on-the-ground hail by trained spotters, and has been under severe weather warnings 61 times during the past 12 months. Doppler radar has detected hail at or near Grinnell, IA on 68 occasions, including 9 occasions during the past year.
| Name: | Grinnell, IA |
| Where Located: | 47.1 miles ENE of Des Moines, IA |
| Map: | Google Map for Grinnell, IA |
| Population: | 9218 |
| Housing Units: | 3844 |
| More Info: | Search Google for Grinnell, IA |
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The Top Recent Hail Date for Grinnell, IA is Tuesday, June 25, 2024 (8th out of 68)
Hail and Wind Damage Spotted near Grinnell, IA
| Date / Time | Report Details |
|---|---|
| 8/15/2024 5:55 PM CDT |
 Svrdmx the national weather service in des moines has issued a * severe thunderstorm warning for, northern poweshiek county in central iowa, southeastern tama county in central iowa, east central jasper county in central iowa, * until 645 pm cdt. * at 554 pm cdt, a severe thunderstorm was located over grinnell, moving east at 35 mph (radar indicated). Hazards include 60 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees.
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| 7/30/2024 9:44 AM CDT |
 Svrdmx the national weather service in des moines has issued a * severe thunderstorm warning for, northern lucas county in south central iowa, western poweshiek county in central iowa, eastern polk county in central iowa, east central madison county in south central iowa, marion county in south central iowa, northwestern mahaska county in south central iowa, jasper county in central iowa, northeastern clarke county in south central iowa, warren county in south central iowa, * until 1045 am cdt. * at 943 am cdt, severe thunderstorms were located along a line extending from near maxwell to near pleasant hill to patterson, moving southeast at 45 mph (radar indicated). Hazards include 60 mph wind gusts and penny size hail. expect damage to roofs, siding, and trees
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| 7/15/2024 6:34 PM CDT |
 the severe thunderstorm warning has been cancelled and is no longer in effect
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| 7/15/2024 6:34 PM CDT |
 At 634 pm cdt, severe thunderstorms were located along a line extending from near koszta to searsboro to near pleasantville, moving southeast at 30 mph (radar indicated). Hazards include 70 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. expect considerable tree damage. wind damage is also likely to mobile homes, roofs, and outbuildings. locations impacted include, pella, grinnell, knoxville, montezuma, monroe, pleasantville, brooklyn, knoxville raceway, lake red rock, victor, sully, lynnville, malcom, reasnor, searsboro, hartwick, pella municipal airport, knoxville municipal airport, and elk rock state park. This includes interstate 80 between mile markers 181 and 201.
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| 7/15/2024 6:20 PM CDT | the severe thunderstorm warning has been cancelled and is no longer in effect |
| 7/15/2024 6:20 PM CDT | At 620 pm cdt, severe thunderstorms were located along a line extending from near chelsea to near sully to near sandyville, moving southeast at 45 mph (radar indicated). Hazards include 70 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. expect considerable tree damage. wind damage is also likely to mobile homes, roofs, and outbuildings. locations impacted include, newton, pella, grinnell, knoxville, montezuma, monroe, pleasantville, brooklyn, iowa speedway, knoxville raceway, lake red rock, rock creek lake, victor, sully, hartford, kellogg, holiday lake, lynnville, malcom, and oakland acres. This includes interstate 80 between mile markers 165 and 201. |
| 7/15/2024 6:19 PM CDT | At 619 pm cdt, severe thunderstorms were located along a line extending from near chelsea to near sully to near sandyville, moving southeast at 45 mph (radar indicated). Hazards include 70 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. expect considerable tree damage. wind damage is also likely to mobile homes, roofs, and outbuildings. locations impacted include, des moines, ankeny, marshalltown, newton, altoona, pella, grinnell, pleasant hill, knoxville, montezuma, carlisle, bondurant, saylorville, mitchellville, colfax, monroe, pleasantville, prairie city, brooklyn, and baxter. this includes the following highways, interstate 35 between mile markers 87 and 90. interstate 80 between mile markers 135 and 201. Interstate 235 between mile markers 11 and 14. |
| 7/15/2024 6:00 PM CDT | Svrdmx the national weather service in des moines has issued a * severe thunderstorm warning for, poweshiek county in central iowa, southeastern polk county in central iowa, southern marshall county in central iowa, marion county in south central iowa, southern tama county in central iowa, northwestern mahaska county in south central iowa, jasper county in central iowa, northeastern warren county in south central iowa, * until 700 pm cdt. * at 600 pm cdt, a severe thunderstorm was located near lambs grove, or 6 miles northwest of newton, moving southeast at 30 mph (radar indicated). Hazards include 70 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. expect considerable tree damage. Wind damage is also likely to mobile homes, roofs, and outbuildings. |
| 7/7/2024 11:57 PM CDT |
 At 1156 pm cdt, a severe thunderstorm was located 6 miles northwest of holiday lake, or 8 miles south of toledo, moving east at 45 mph (radar indicated). Hazards include 60 mph wind gusts. personal weather stations in the gilman area have recorded wind gusts between 40 and 50 mph between 1140 and 1150pm. Expect damage to roofs, siding, and trees. Locations impacted include, grinnell, toledo, tama, brooklyn, dysart, meskwaki casino, le grand, gilman, holiday lake, chelsea, montour, clutier, elberon, ferguson, hartwick, vining, grinnell regional airport, and toledo municipal airport.
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| 7/7/2024 11:40 PM CDT |
 Svrdmx the national weather service in des moines has issued a * severe thunderstorm warning for, northern poweshiek county in central iowa, southeastern marshall county in central iowa, southern tama county in central iowa, northeastern jasper county in central iowa, * until 1230 am cdt. * at 1139 pm cdt, a severe thunderstorm was located over gilman, or 9 miles northwest of grinnell, moving northeast at 40 mph (radar indicated). Hazards include 60 mph wind gusts. personal weather stations near colfax have recorded winds between 40 and 50 mph around 1115pm. expect damage to roofs, siding, and trees
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| 6/25/2024 5:58 PM CDT |
 The storms which prompted the warning have weakened below severe limits, and have exited the warned area. therefore, the warning will be allowed to expire. however, small hail and gusty winds are still possible with these thunderstorms. a severe thunderstorm watch remains in effect until midnight cdt for central iowa.
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| 6/25/2024 5:45 PM CDT |
 At 543 pm cdt, severe thunderstorms were located along a line extending from near brooklyn to near grinnell to searsboro, moving east at 35 mph (radar indicated). Hazards include 60 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. expect wind damage to roofs, siding, and trees. locations impacted include, grinnell, montezuma, brooklyn, malcom, searsboro, guernsey, and grinnell regional airport. This includes interstate 80 between mile markers 182 and 202.
|
| 6/25/2024 5:45 PM CDT |
 the severe thunderstorm warning has been cancelled and is no longer in effect
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| 6/25/2024 5:09 PM CDT |
 Svrdmx the national weather service in des moines has issued a * severe thunderstorm warning for, central poweshiek county in central iowa, northeastern jasper county in central iowa, * until 600 pm cdt. * at 509 pm cdt, severe thunderstorms were located along a line extending from 4 miles north of malcom to near grinnell to oakland acres, moving east at 15 mph (radar indicated). Hazards include 60 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees.
|
| 5/27/2024 3:28 PM CDT |
 The storm which prompted the warning has weakened below severe limits, and no longer poses an immediate threat to life or property. therefore, the warning will be allowed to expire. however, gusty winds are still possible with this thunderstorm.
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| 5/27/2024 3:14 PM CDT |
 At 314 pm cdt, a severe thunderstorm was located 5 miles northeast of grinnell, moving southeast at 45 mph (radar indicated). Hazards include 60 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. expect wind damage to roofs, siding, and trees. locations impacted include, grinnell, brooklyn, holiday lake, and malcom. This includes interstate 80 between mile markers 188 and 195.
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| 5/27/2024 3:14 PM CDT |
 the severe thunderstorm warning has been cancelled and is no longer in effect
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| 5/27/2024 3:02 PM CDT |
 Svrdmx the national weather service in des moines has issued a * severe thunderstorm warning for, northwestern poweshiek county in central iowa, southeastern marshall county in central iowa, southwestern tama county in central iowa, northeastern jasper county in central iowa, * until 330 pm cdt. * at 302 pm cdt, a severe thunderstorm was located over gilman, or 10 miles northwest of grinnell, moving southeast at 45 mph (radar indicated). Hazards include 60 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees.
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| 5/24/2024 6:12 AM CDT |
 At 612 am cdt, severe thunderstorms were located along a line extending from 4 miles west of deep river to near thornburg to delta to ottumwa industrial airport, moving east at 45 mph (public). Hazards include 70 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. expect considerable tree damage. wind damage is also likely to mobile homes, roofs, and outbuildings. locations impacted include, ottumwa, oskaloosa, grinnell, albia, montezuma, brooklyn, new sharon, eddyville, ottumwa industrial airport, eldon, victor, fremont, agency, beacon, university park, holiday lake, blakesburg, malcom, deep river, and barnes city. This includes interstate 80 between mile markers 182 and 204.
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| 5/24/2024 6:12 AM CDT |
 the severe thunderstorm warning has been cancelled and is no longer in effect
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| 5/24/2024 6:01 AM CDT |
 At 601 am cdt, severe thunderstorms were located along a line extending from near montezuma to near barnes city to rose hill to near eddyville, moving east at 45 mph (public). Hazards include 70 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. expect considerable tree damage. wind damage is also likely to mobile homes, roofs, and outbuildings. locations impacted include, ottumwa, newton, oskaloosa, pella, grinnell, albia, montezuma, brooklyn, new sharon, eddyville, ottumwa industrial airport, iowa speedway, rock creek lake, eldon, victor, sully, fremont, agency, kellogg, and lovilia. This includes interstate 80 between mile markers 167 and 204.
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| 5/24/2024 5:57 AM CDT |
 Svrdmx the national weather service in des moines has issued a * severe thunderstorm warning for, northern poweshiek county in central iowa, eastern marshall county in central iowa, northeastern hardin county in central iowa, black hawk county in northeastern iowa, tama county in central iowa, bremer county in northeastern iowa, eastern franklin county in north central iowa, grundy county in central iowa, butler county in north central iowa, northeastern jasper county in central iowa, * until 700 am cdt. * at 556 am cdt, severe thunderstorms were located along a line extending from aredale to lincoln to near tama, moving east at 50 mph (public). Hazards include 60 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees.
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| 5/24/2024 5:52 AM CDT |
 the severe thunderstorm warning has been cancelled and is no longer in effect
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| 5/24/2024 5:52 AM CDT |
 At 552 am cdt, severe thunderstorms were located along a line extending from near hampton municipal airport to liscomb to near laurel, moving east at 45 mph (radar indicated). Hazards include 60 mph wind gusts and penny size hail. Expect damage to roofs, siding, and trees. locations impacted include, marshalltown, newton, grinnell, iowa falls, hampton, eldora, grundy center, toledo, allison, tama, parkersburg, reinbeck, ackley, state center, sheffield, aplington, conrad, meskwaki casino, rock creek lake, and iowa speedway. this includes the following highways, interstate 35 between mile markers 167 and 178. Interstate 80 between mile markers 165 and 167.
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| 5/24/2024 5:41 AM CDT |
 At 541 am cdt, severe thunderstorms were located along a line extending from near coulter to 4 miles northeast of clemons to 5 miles east of baxter, moving east at 45 mph (public). Hazards include 60 mph wind gusts and penny size hail. Expect damage to roofs, siding, and trees. locations impacted include, marshalltown, newton, grinnell, iowa falls, hampton, eldora, grundy center, toledo, allison, tama, belmond, colfax, parkersburg, reinbeck, ackley, state center, sheffield, aplington, conrad, and baxter. this includes the following highways, interstate 35 between mile markers 147 and 178. Interstate 80 between mile markers 151 and 168.
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| 5/24/2024 5:31 AM CDT |
 Svrdmx the national weather service in des moines has issued a * severe thunderstorm warning for, eastern lucas county in south central iowa, poweshiek county in central iowa, monroe county in south central iowa, marion county in south central iowa, wapello county in southeastern iowa, mahaska county in south central iowa, southern jasper county in central iowa, * until 630 am cdt. * at 530 am cdt, severe thunderstorms were located along a line extending from near reasnor to pella to near bussey to 5 miles north of melrose, moving east at 45 mph (radar indicated). Hazards include 70 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. expect considerable tree damage. Wind damage is also likely to mobile homes, roofs, and outbuildings.
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| 5/24/2024 5:18 AM CDT |
 Svrdmx the national weather service in des moines has issued a * severe thunderstorm warning for, northwestern poweshiek county in central iowa, eastern polk county in central iowa, story county in central iowa, marshall county in central iowa, hardin county in central iowa, western tama county in central iowa, wright county in north central iowa, franklin county in north central iowa, grundy county in central iowa, western butler county in north central iowa, northern jasper county in central iowa, hamilton county in central iowa, * until 615 am cdt. * at 517 am cdt, severe thunderstorms were located along a line extending from 4 miles northwest of big wall lake to near mccallsburg to near mingo, moving east at 45 mph (radar indicated). Hazards include 60 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees.
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| 5/21/2024 6:11 PM CDT |
 the severe thunderstorm warning has been cancelled and is no longer in effect
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| 5/21/2024 6:11 PM CDT |
 At 611 pm cdt, a severe thunderstorm was located near malcom, or 9 miles east of grinnell, moving northeast at 60 mph (radar indicated). Hazards include 60 mph wind gusts and nickel size hail. Expect damage to roofs, siding, and trees. locations impacted include, grinnell, holiday lake, malcom, chelsea, elberon, and vining. This includes interstate 80 between mile markers 186 and 189.
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| 5/21/2024 5:58 PM CDT |
 Svrdmx the national weather service in des moines has issued a * severe thunderstorm warning for, northwestern poweshiek county in central iowa, southeastern tama county in central iowa, southeastern jasper county in central iowa, * until 645 pm cdt. * at 557 pm cdt, a severe thunderstorm was located over searsboro, or 8 miles south of grinnell, moving northeast at 60 mph (radar indicated). Hazards include 60 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees.
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| 5/21/2024 5:15 PM CDT |
 Svrdmx the national weather service in des moines has issued a * severe thunderstorm warning for, northern poweshiek county in central iowa, southeastern marshall county in central iowa, tama county in central iowa, northeastern jasper county in central iowa, * until 615 pm cdt. * at 514 pm cdt, severe thunderstorms were located along a line extending from 5 miles southwest of laurel to near iowa speedway, moving northeast at 60 mph (trained weather spotters). Hazards include 70 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. expect considerable tree damage. Wind damage is also likely to mobile homes, roofs, and outbuildings.
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| 5/21/2024 11:30 AM CDT |
 At 1130 am cdt, a severe thunderstorm was located 6 miles south of lynnville, or 8 miles northeast of pella, moving northeast at 60 mph (public). Hazards include tennis ball size hail and 60 mph wind gusts. People and animals outdoors will be injured. expect hail damage to roofs, siding, windows, and vehicles. expect wind damage to roofs, siding, and trees. this severe storm will be near, lynnville and searsboro around 1135 am cdt. montezuma and malcom around 1145 am cdt. brooklyn around 1150 am cdt. other locations impacted by this severe thunderstorm include guernsey, searsboro, lynnville, malcom, and sully. This includes interstate 80 between mile markers 182 and 204.
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| 5/21/2024 11:20 AM CDT |
 At 1120 am cdt, a severe thunderstorm was located over pella municipal airport, or over pella, moving northeast at 60 mph (radar indicated). Hazards include golf ball size hail and 60 mph wind gusts. People and animals outdoors will be injured. expect hail damage to roofs, siding, windows, and vehicles. expect wind damage to roofs, siding, and trees. this severe storm will be near, pella around 1125 am cdt. lynnville and searsboro around 1135 am cdt. montezuma around 1145 am cdt. brooklyn and malcom around 1150 am cdt. other locations impacted by this severe thunderstorm include pella municipal airport, grinnell regional airport, malcom, reasnor, oakland acres, guernsey, searsboro, lynnville, harvey, and elk rock state park. This includes interstate 80 between mile markers 171 and 204.
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| 5/21/2024 11:14 AM CDT |
 Svrdmx the national weather service in des moines has issued a * severe thunderstorm warning for, poweshiek county in central iowa, central marion county in south central iowa, northwestern mahaska county in south central iowa, southeastern jasper county in central iowa, * until noon cdt. * at 1114 am cdt, a severe thunderstorm was located near knoxville, moving northeast at 55 mph (radar indicated). Hazards include 60 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. expect wind damage to roofs, siding, and trees. this severe thunderstorm will be near, pella, lake red rock, harvey, and pella municipal airport around 1120 am cdt. lynnville and searsboro around 1135 am cdt. montezuma around 1145 am cdt. malcom around 1150 am cdt. brooklyn around 1155 am cdt. other locations impacted by this severe thunderstorm include pella municipal airport, grinnell regional airport, malcom, reasnor, oakland acres, guernsey, searsboro, lynnville, knoxville municipal airport, and harvey. This includes interstate 80 between mile markers 171 and 204.
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| 5/21/2024 10:26 AM CDT |
 The storms which prompted the warning have weakened below severe limits, and have exited the warned area. therefore, the warning will be allowed to expire. a severe thunderstorm watch remains in effect until 100 pm cdt for central iowa.
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| 5/21/2024 10:20 AM CDT |
 At 1020 am cdt, severe thunderstorms were located along a line extending from marshalltown to 4 miles southeast of gilman to near searsboro, moving northeast at 45 mph (radar indicated). Hazards include 60 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. expect wind damage to roofs, siding, and trees. locations impacted include, marshalltown, grinnell, rock creek lake, kellogg, gilman, albion, laurel, haverhill, oakland acres, ferguson, grinnell regional airport, marshalltown municipal airport, and rock creek state park. This includes interstate 80 between mile markers 173 and 185.
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| 5/21/2024 10:11 AM CDT |
 At 1010 am cdt, severe thunderstorms were located along a line extending from 4 miles northwest of haverhill to near rock creek state park to 6 miles south of sully, moving northeast at 45 mph (radar indicated). Hazards include 60 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. expect wind damage to roofs, siding, and trees. locations impacted include, marshalltown, newton, grinnell, state center, rock creek lake, iowa speedway, melbourne, kellogg, gilman, albion, laurel, haverhill, oakland acres, ferguson, grinnell regional airport, marshalltown municipal airport, rock creek state park, and newton municipal airport. This includes interstate 80 between mile markers 165 and 185.
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| 5/21/2024 10:11 AM CDT |
 the severe thunderstorm warning has been cancelled and is no longer in effect
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| 5/21/2024 9:57 AM CDT |
 At 956 am cdt, severe thunderstorms were located along a line extending from rhodes to newton to near lake red rock, moving northeast at 45 mph (radar indicated). Hazards include 60 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. expect wind damage to roofs, siding, and trees. locations impacted include, marshalltown, newton, grinnell, colfax, monroe, prairie city, state center, baxter, iowa speedway, rock creek lake, colo, melbourne, sully, kellogg, gilman, albion, collins, lynnville, rhodes, and mingo. This includes interstate 80 between mile markers 153 and 185.
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| 5/21/2024 9:57 AM CDT |
 the severe thunderstorm warning has been cancelled and is no longer in effect
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| 5/21/2024 9:43 AM CDT |
 At 943 am cdt, severe thunderstorms were located along a line extending from collins to near prairie city krohn airport to near knoxville raceway, moving northeast at 45 mph (radar indicated). Hazards include 60 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. expect wind damage to roofs, siding, and trees. locations impacted include, marshalltown, newton, altoona, pella, grinnell, bondurant, huxley, mitchellville, colfax, monroe, pleasantville, prairie city, state center, new sharon, baxter, iowa speedway, rock creek lake, lake red rock, maxwell, and colo. this includes the following highways, interstate 35 between mile markers 99 and 103. Interstate 80 between mile markers 143 and 185.
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| 5/21/2024 9:26 AM CDT |
 Svrdmx the national weather service in des moines has issued a * severe thunderstorm warning for, western poweshiek county in central iowa, polk county in central iowa, southeastern story county in central iowa, marshall county in central iowa, marion county in south central iowa, northwestern mahaska county in south central iowa, jasper county in central iowa, eastern warren county in south central iowa, * until 1030 am cdt. * at 925 am cdt, severe thunderstorms were located along a line extending from elkhart to 4 miles east of pleasant hill to near milo, moving northeast at 45 mph (radar indicated). Hazards include 60 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees.
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| 5/21/2024 6:06 AM CDT |
 At 606 am cdt, a severe thunderstorm was located near malcom, or 5 miles northwest of montezuma, moving east at 30 mph (radar indicated). Hazards include ping pong ball size hail and 60 mph wind gusts. People and animals outdoors will be injured. expect hail damage to roofs, siding, windows, and vehicles. expect wind damage to roofs, siding, and trees. locations impacted include, grinnell, montezuma, brooklyn, victor, holiday lake, lynnville, malcom, deep river, searsboro, hartwick, guernsey, and grinnell regional airport. This includes interstate 80 between mile markers 179 and 204.
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| 5/21/2024 5:51 AM CDT |
 Svrdmx the national weather service in des moines has issued a * severe thunderstorm warning for, poweshiek county in central iowa, southeastern tama county in central iowa, southeastern jasper county in central iowa, * until 630 am cdt. * at 551 am cdt, a severe thunderstorm was located over searsboro, or 9 miles south of grinnell, moving east at 20 mph (radar indicated). Hazards include 60 mph wind gusts and half dollar size hail. Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees.
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| 5/19/2024 4:41 PM CDT |
 At 440 pm cdt, a severe thunderstorm was located near barnes city, or near montezuma, moving east at 30 mph (radar indicated). Hazards include 60 mph wind gusts and nickel size hail. Expect damage to roofs, siding, and trees. locations impacted include, grinnell, montezuma, brooklyn, new sharon, victor, malcom, deep river, barnes city, leighton, searsboro, hartwick, and guernsey. This includes interstate 80 between mile markers 180 and 204.
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| 5/19/2024 4:41 PM CDT |
 the severe thunderstorm warning has been cancelled and is no longer in effect
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| 5/19/2024 4:14 PM CDT |
 Svrdmx the national weather service in des moines has issued a * severe thunderstorm warning for, poweshiek county in central iowa, northeastern marion county in south central iowa, northern mahaska county in south central iowa, southeastern jasper county in central iowa, * until 515 pm cdt. * at 413 pm cdt, a severe thunderstorm was located 6 miles northeast of pella, moving east at 30 mph (radar indicated). Hazards include 60 mph wind gusts and quarter size hail. pella municipal airport reported a wind gust of 61 mph at 4:11 pm cdt. Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees.
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| 5/19/2024 4:06 PM CDT |
 At 405 pm cdt, a severe thunderstorm was located near sully, or 8 miles north of pella, moving northeast at 35 mph (radar indicated). Hazards include quarter size hail. Damage to vehicles is expected. locations impacted include, pella, grinnell, lake red rock, sully, lynnville, reasnor, searsboro, pella municipal airport, and grinnell regional airport. This includes interstate 80 between mile markers 178 and 184.
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| 5/19/2024 3:45 PM CDT |
 At 345 pm cdt, a severe thunderstorm was located over elk rock state park, or 8 miles northwest of pella, moving northeast at 35 mph (radar indicated). Hazards include quarter size hail. Damage to vehicles is expected. locations impacted include, pella, grinnell, knoxville, monroe, lake red rock, knoxville raceway, sully, lynnville, reasnor, searsboro, pella municipal airport, grinnell regional airport, and elk rock state park. This includes interstate 80 between mile markers 178 and 184.
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| 5/19/2024 3:33 PM CDT |
 Svrdmx the national weather service in des moines has issued a * severe thunderstorm warning for, southwestern poweshiek county in central iowa, northern marion county in south central iowa, northwestern mahaska county in south central iowa, southern jasper county in central iowa, * until 415 pm cdt. * at 333 pm cdt, a severe thunderstorm was located near pleasantville, or 8 miles northwest of knoxville, moving northeast at 35 mph (radar indicated). Hazards include quarter size hail. damage to vehicles is expected
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| 5/7/2024 2:26 AM CDT |
 Svrdmx the national weather service in des moines has issued a * severe thunderstorm warning for, poweshiek county in central iowa, northeastern monroe county in south central iowa, eastern marshall county in central iowa, davis county in southeastern iowa, wapello county in southeastern iowa, tama county in central iowa, mahaska county in south central iowa, south central grundy county in central iowa, eastern jasper county in central iowa, * until 315 am cdt. * at 225 am cdt, severe thunderstorms were located along a line extending from near marshalltown municipal airport to 5 miles south of bloomfield municipal airport, moving east at 40 mph (radar indicated). Hazards include 60 mph wind gusts and penny size hail. expect damage to roofs, siding, and trees
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| 5/7/2024 1:46 AM CDT |
 At 145 am cdt, severe thunderstorms were located along a line extending from near monroe to lovilia to centerville municipal airport, moving east at 50 mph (radar indicated). Hazards include 60 mph wind gusts and penny size hail. Expect damage to roofs, siding, and trees. locations impacted include, ottumwa, newton, oskaloosa, pella, grinnell, knoxville, centerville, albia, bloomfield, montezuma, colfax, monroe, pleasantville, prairie city, new sharon, melcher-dallas, eddyville, ottumwa industrial airport, lake sundown, and rathbun lake. This includes interstate 80 between mile markers 159 and 192.
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| 5/7/2024 1:46 AM CDT |
 the severe thunderstorm warning has been cancelled and is no longer in effect
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| 5/7/2024 1:26 AM CDT |
 Svrdmx the national weather service in des moines has issued a * severe thunderstorm warning for, lucas county in south central iowa, western poweshiek county in central iowa, monroe county in south central iowa, southeastern polk county in central iowa, davis county in southeastern iowa, marion county in south central iowa, wapello county in southeastern iowa, wayne county in south central iowa, mahaska county in south central iowa, appanoose county in south central iowa, jasper county in central iowa, eastern warren county in south central iowa, * until 230 am cdt. * at 126 am cdt, severe thunderstorms were located along a line extending from near runnells to 5 miles northeast of russell to 5 miles south of seymour, moving east at 50 mph (radar indicated). Hazards include 60 mph wind gusts and penny size hail. expect damage to roofs, siding, and trees
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| 4/27/2024 3:44 PM CDT |
 Svrdmx the national weather service in des moines has issued a * severe thunderstorm warning for, southwestern poweshiek county in central iowa, northeastern marion county in south central iowa, northwestern mahaska county in south central iowa, southeastern jasper county in central iowa, * until 430 pm cdt. * at 344 pm cdt, a severe thunderstorm was located 6 miles north of pella municipal airport, or 6 miles north of pella, moving northeast at 25 mph (radar indicated). Hazards include 60 mph wind gusts and half dollar size hail. Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees.
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| 4/16/2024 2:23 PM CDT |
 The severe thunderstorm which prompted the warning has weakened. therefore, the warning has been allowed to expire. a tornado watch remains in effect until 600 pm cdt for central iowa.
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| 4/16/2024 2:00 PM CDT |
 the severe thunderstorm warning has been cancelled and is no longer in effect
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| 4/16/2024 2:00 PM CDT |
 At 200 pm cdt, a severe thunderstorm was located over gilman, or 9 miles northwest of grinnell, moving northeast at 55 mph (radar indicated). Hazards include 60 mph wind gusts and penny size hail. Expect damage to roofs, siding, and trees. locations impacted include, grinnell, brooklyn, rock creek lake, kellogg, holiday lake, malcom, oakland acres, searsboro, grinnell regional airport, and rock creek state park. This includes interstate 80 between mile markers 174 and 194.
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| 4/16/2024 1:49 PM CDT |
 At 149 pm cdt, a severe thunderstorm was located over kellogg, or 7 miles west of grinnell, moving northeast at 55 mph (radar indicated). Hazards include 60 mph wind gusts and penny size hail. Expect damage to roofs, siding, and trees. locations impacted include, newton, grinnell, brooklyn, rock creek lake, iowa speedway, sully, kellogg, holiday lake, lynnville, malcom, lambs grove, oakland acres, reasnor, searsboro, grinnell regional airport, rock creek state park, and newton municipal airport. This includes interstate 80 between mile markers 163 and 194.
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| 4/16/2024 1:49 PM CDT |
 the severe thunderstorm warning has been cancelled and is no longer in effect
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| 4/16/2024 1:35 PM CDT |
 Svrdmx the national weather service in des moines has issued a * severe thunderstorm warning for, northwestern poweshiek county in central iowa, northeastern marion county in south central iowa, northwestern mahaska county in south central iowa, eastern jasper county in central iowa, * until 215 pm cdt. * at 135 pm cdt, a severe thunderstorm was located near reasnor, or 9 miles north of pella, moving northeast at 55 mph (radar indicated). Hazards include 60 mph wind gusts and penny size hail. expect damage to roofs, siding, and trees
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| 7/28/2023 9:02 PM CDT |
 At 901 pm cdt, severe thunderstorms were located along a line extending from koszta to near malcom to lambs grove, moving southeast at 25 mph (radar indicated). Hazards include 60 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. expect wind damage to roofs, siding, and trees. locations impacted include, holiday lake, malcom, brooklyn, kellogg, victor, victor, sully, guernsey, lynnville and searsboro. this includes interstate 80 between mile markers 152 and 204. hail threat, radar indicated max hail size, 1. 00 in wind threat, radar indicated max wind gust, 60 mph.
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| 7/28/2023 8:24 PM CDT |
 At 823 pm cdt, severe thunderstorms were located along a line extending from near vining to gilman to near mingo, moving southeast at 25 mph (radar indicated). Hazards include 60 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. expect wind damage to roofs, siding, and trees. severe thunderstorms will be near, gilman, chelsea, elberon and vining around 830 pm cdt. rock creek lake and rock creek state park around 835 pm cdt. other locations in the path of these severe thunderstorms include grinnell, hartwick, prairie city krohn airport, grinnell regional airport, newton, lambs grove, iowa speedway, malcom, newton municipal airport, kellogg, brooklyn and reasnor. this includes interstate 80 between mile markers 152 and 204. hail threat, radar indicated max hail size, 1. 00 in wind threat, radar indicated max wind gust, 60 mph.
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| 7/13/2023 9:27 PM CDT |
 The severe thunderstorm warning for western poweshiek county will expire at 930 pm cdt, the storm which prompted the warning has weakened below severe limits, and no longer poses an immediate threat to life or property. therefore, the warning will be allowed to expire.
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| 7/13/2023 9:16 PM CDT |
 At 915 pm cdt, a severe thunderstorm was located near grinnell regional airport, or near grinnell, moving southeast at 30 mph (radar indicated). Hazards include quarter size hail. Damage to vehicles is expected. locations impacted include, searsboro and montezuma. this includes interstate 80 between mile markers 181 and 194. hail threat, radar indicated max hail size, 1. 00 in wind threat, radar indicated max wind gust, <50 mph.
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| 7/13/2023 8:50 PM CDT |
 At 850 pm cdt, a severe thunderstorm was located over gilman, or 7 miles north of grinnell, moving southeast at 35 mph (radar indicated). Hazards include ping pong ball size hail. People and animals outdoors will be injured. expect damage to roofs, siding, windows, and vehicles. this severe storm will be near, rock creek lake and rock creek state park around 855 pm cdt. grinnell and oakland acres around 900 pm cdt. other locations in the path of this severe thunderstorm include grinnell regional airport, malcom, searsboro, montezuma and barnes city. this includes interstate 80 between mile markers 174 and 204. hail threat, radar indicated max hail size, 1. 50 in wind threat, radar indicated max wind gust, <50 mph.
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| 7/13/2023 8:41 PM CDT |
 At 840 pm cdt, a severe thunderstorm was located over ferguson, or 9 miles southeast of marshalltown, moving southeast at 35 mph (trained weather spotters). Hazards include quarter size hail. Damage to vehicles is expected. this severe thunderstorm will be near, gilman around 845 pm cdt. rock creek lake and rock creek state park around 855 pm cdt. grinnell and oakland acres around 900 pm cdt. other locations in the path of this severe thunderstorm include grinnell regional airport, malcom, searsboro, montezuma and barnes city. this includes interstate 80 between mile markers 172 and 204. hail threat, observed max hail size, 1. 00 in wind threat, radar indicated max wind gust, <50 mph.
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| 7/12/2023 8:57 AM CDT |
 The severe thunderstorm warning for northwestern poweshiek, southeastern marshall, southwestern tama and northeastern jasper counties will expire at 900 am cdt, the storm which prompted the warning has weakened below severe limits, and no longer poses an immediate threat to life or property. therefore, the warning will be allowed to expire. however gusty winds are still possible with this thunderstorm. a severe thunderstorm watch remains in effect until 1100 am cdt for central iowa.
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| 7/12/2023 8:46 AM CDT |
 At 846 am cdt, a severe thunderstorm was located near gilman, or 6 miles northwest of grinnell, moving east at 60 mph (radar indicated). Hazards include 60 mph wind gusts and penny size hail. Expect damage to roofs, siding, and trees. locations impacted include, grinnell. this includes interstate 80 between mile markers 162 and 191. hail threat, radar indicated max hail size, 0. 75 in wind threat, radar indicated max wind gust, 60 mph.
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| 7/12/2023 8:18 AM CDT |
 At 818 am cdt, a severe thunderstorm was located over mingo, or 12 miles northeast of altoona, moving east at 60 mph (radar indicated). Hazards include 60 mph wind gusts and penny size hail. Expect damage to roofs, siding, and trees. this severe thunderstorm will be near, newton, baxter and lambs grove around 830 am cdt. other locations in the path of this severe thunderstorm include kellogg, laurel, rock creek lake, oakland acres, rock creek state park, grinnell, gilman, grinnell regional airport and malcom. this includes interstate 80 between mile markers 145 and 191. hail threat, radar indicated max hail size, 0. 75 in wind threat, radar indicated max wind gust, 60 mph.
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| 5/7/2023 4:53 PM CDT | Semi trailer blown over at mile marker 185 on interstate 80 between grinnell and malcolm exits. via iowa dot camer in poweshiek county IA, 3 miles NW of Grinnell, IA |
| 5/7/2023 4:50 PM CDT | Baseball sized hail reported 6.1 miles NW of Grinnell, IA, spotter reported strong winds and large hail with wide range of sizes. potentially some wind damage. |
| 5/7/2023 4:50 PM CDT |
 At 450 pm cdt, severe thunderstorms were located along a line extending from toledo municipal airport to near searsboro, moving east at 35 mph. these are destructive storms for poweshiek county (trained weather spotters). Hazards include baseball size hail and 60 mph wind gusts. People and animals outdoors will be severely injured. expect shattered windows, extensive damage to roofs, siding, and vehicles. locations impacted include, grinnell, searsboro and grinnell regional airport. this includes interstate 80 between mile markers 181 and 186. thunderstorm damage threat, destructive hail threat, observed max hail size, 2. 75 in wind threat, radar indicated max wind gust, 60 mph.
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| 5/7/2023 4:46 PM CDT |
 At 445 pm cdt, a severe thunderstorm was located over oakland acres, or 6 miles west of grinnell, moving east at 40 mph. this is a destructive storm for poweshiek county (trained weather spotters). Hazards include baseball size hail and 60 mph wind gusts. People and animals outdoors will be severely injured. expect shattered windows, extensive damage to roofs, siding, and vehicles. this severe thunderstorm will be near, grinnell and grinnell regional airport around 455 pm cdt. searsboro around 500 pm cdt. other locations in the path of this severe thunderstorm include montezuma, malcom, brooklyn, deep river, guernsey, victor and victor. this includes interstate 80 between mile markers 181 and 204. thunderstorm damage threat, destructive hail threat, observed max hail size, 2. 75 in wind threat, radar indicated max wind gust, 60 mph.
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| 5/7/2023 4:45 PM CDT | Ping Pong Ball sized hail reported 2.2 miles S of Grinnell, IA |
| 5/7/2023 4:42 PM CDT | Golf Ball sized hail reported 1.6 miles S of Grinnell, IA, via social media. |
| 5/7/2023 4:42 PM CDT | Trailers blown over at a dealership south of grinnell. report via social medi in poweshiek county IA, 2.6 miles N of Grinnell, IA |
| 5/7/2023 4:41 PM CDT |
 At 441 pm cdt, severe thunderstorms were located along a line extending from near toledo to near searsboro, moving east at 35 mph (trained weather spotters). Hazards include two inch hail and 60 mph wind gusts. People and animals outdoors will be injured. expect hail damage to roofs, siding, windows, and vehicles. expect wind damage to roofs, siding, and trees. locations impacted include, grinnell, rock creek lake, gilman, oakland acres, searsboro, grinnell regional airport and rock creek state park. this includes interstate 80 between mile markers 174 and 186. thunderstorm damage threat, considerable hail threat, observed max hail size, 2. 00 in wind threat, radar indicated max wind gust, 60 mph.
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| 5/7/2023 4:40 PM CDT | Baseball sized hail reported 1.9 miles N of Grinnell, IA, accompanied by strong winds as well. via social media. |
| 5/7/2023 4:34 PM CDT |
 At 433 pm cdt, severe thunderstorms were located along a line extending from near garwin to 4 miles north of lynnville, moving east at 35 mph (trained weather spotters). Hazards include two inch hail and 60 mph wind gusts. People and animals outdoors will be injured. expect hail damage to roofs, siding, windows, and vehicles. expect wind damage to roofs, siding, and trees. locations impacted include, newton, grinnell, rock creek lake, kellogg, gilman, laurel, haverhill, oakland acres, searsboro, ferguson, grinnell regional airport and rock creek state park. this includes interstate 80 between mile markers 168 and 186. thunderstorm damage threat, considerable hail threat, observed max hail size, 2. 00 in wind threat, radar indicated max wind gust, 60 mph.
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| 5/7/2023 4:27 PM CDT |
 At 426 pm cdt, severe thunderstorms were located along a line extending from near garwin to 5 miles north of sully, moving east at 35 mph (trained weather spotters). Hazards include tennis ball size hail and 60 mph wind gusts. People and animals outdoors will be injured. expect hail damage to roofs, siding, windows, and vehicles. expect wind damage to roofs, siding, and trees. locations impacted include, marshalltown, newton, grinnell, meskwaki casino, rock creek lake, iowa speedway, le grand, sully, kellogg, garwin, gilman, lynnville, montour, laurel, haverhill, lambs grove, oakland acres, searsboro, ferguson and grinnell regional airport. this includes interstate 80 between mile markers 159 and 186. thunderstorm damage threat, considerable hail threat, observed max hail size, 2. 50 in wind threat, radar indicated max wind gust, 60 mph.
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| 5/7/2023 4:24 PM CDT |
 At 424 pm cdt, severe thunderstorms were located along a line extending from near garwin to 4 miles north of sully, moving east at 35 mph (trained weather spotters). Hazards include ping pong ball size hail and 60 mph wind gusts. People and animals outdoors will be injured. expect hail damage to roofs, siding, windows, and vehicles. expect wind damage to roofs, siding, and trees. locations impacted include, marshalltown, newton, grinnell, meskwaki casino, rock creek lake, iowa speedway, le grand, sully, kellogg, garwin, gilman, lynnville, montour, laurel, haverhill, lambs grove, oakland acres, searsboro, ferguson and grinnell regional airport. this includes interstate 80 between mile markers 159 and 186. hail threat, observed max hail size, 1. 50 in wind threat, radar indicated max wind gust, 60 mph.
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| 5/7/2023 4:19 PM CDT |
 At 419 pm cdt, a severe thunderstorm was located over kellogg, or 8 miles east of newton, moving east at 35 mph (trained weather spotters). Hazards include ping pong ball size hail and 60 mph wind gusts. People and animals outdoors will be injured. expect hail damage to roofs, siding, windows, and vehicles. expect wind damage to roofs, siding, and trees. locations impacted include, grinnell regional airport and grinnell. this includes interstate 80 between mile markers 158 and 181. hail threat, observed max hail size, 1. 50 in wind threat, radar indicated max wind gust, 60 mph.
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| 5/7/2023 4:15 PM CDT |
 At 415 pm cdt, severe thunderstorms were located along a line extending from marshalltown municipal airport to lambs grove, moving east at 30 mph (trained weather spotters). Hazards include ping pong ball size hail and 60 mph wind gusts. People and animals outdoors will be injured. expect hail damage to roofs, siding, windows, and vehicles. Expect wind damage to roofs, siding, and trees.
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| 5/7/2023 3:51 PM CDT |
 At 351 pm cdt, a severe thunderstorm was located over colfax, or 9 miles west of newton, moving east at 35 mph (trained weather spotters). Hazards include ping pong ball size hail and 60 mph wind gusts. People and animals outdoors will be injured. expect hail damage to roofs, siding, windows, and vehicles. expect wind damage to roofs, siding, and trees. this severe thunderstorm will be near, newton and lambs grove around 405 pm cdt. iowa speedway and newton municipal airport around 410 pm cdt. other locations in the path of this severe thunderstorm include kellogg, rock creek lake, oakland acres, rock creek state park, grinnell and grinnell regional airport. this includes interstate 80 between mile markers 152 and 181. hail threat, observed max hail size, 1. 50 in wind threat, radar indicated max wind gust, 60 mph.
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| 4/20/2023 12:06 AM CDT |
 At 1204 am cdt, severe thunderstorms were located along a line extending from near lincoln to 4 miles northwest of holiday lake to lake keomah state park, moving east at 30 mph (radar indicated). Hazards include 60 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. expect wind damage to roofs, siding, and trees. locations impacted include, holiday lake, traer, chelsea, hartwick, vining, tf clark state park and elberon. this includes interstate 80 between mile markers 178 and 204. hail threat, radar indicated max hail size, 1. 00 in wind threat, radar indicated max wind gust, 60 mph.
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| 4/19/2023 11:54 PM CDT |
 The tornado warning for southwestern poweshiek and southeastern jasper counties will expire at midnight cdt, the tornado threat has diminished and the tornado warning has been cancelled. however, large hail and damaging winds remain possible and a severe thunderstorm warning remains in effect for the area. a severe thunderstorm watch remains in effect until 600 am cdt for central iowa. remember, a severe thunderstorm warning still remains in effect for eastern jasper and all of poweshiek counties.
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| 4/19/2023 11:46 PM CDT |
 At 1144 pm cdt, a severe thunderstorm capable of producing a tornado was located near sully, or 9 miles southwest of grinnell, moving east at 45 mph (radar indicated rotation). Hazards include tornado and quarter size hail. Flying debris will be dangerous to those caught without shelter. mobile homes will be damaged or destroyed. damage to roofs, windows, and vehicles will occur. tree damage is likely. this dangerous storm will be near, grinnell regional airport around 1150 pm cdt. other locations in the path of this tornadic thunderstorm include searsboro. This includes interstate 80 between mile markers 177 and 184.
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| 4/19/2023 11:41 PM CDT |
 At 1140 pm cdt, severe thunderstorms were located along a line extending from beaman to 4 miles northwest of grinnell to 5 miles southwest of beacon, moving northeast at 30 mph (radar indicated). Hazards include 60 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. expect wind damage to roofs, siding, and trees. severe thunderstorms will be near, grinnell, gilman and union grove state park around 1145 pm cdt. gladbrook around 1150 pm cdt. other locations in the path of these severe thunderstorms include keomah village, lake keomah state park, oskaloosa municipal airport, toledo, tama, fremont, holiday lake, toledo municipal airport, rose hill, chelsea, vining and elberon. this includes interstate 80 between mile markers 169 and 204. hail threat, radar indicated max hail size, 1. 00 in wind threat, radar indicated max wind gust, 60 mph.
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| 4/19/2023 11:30 PM CDT |
 At 1130 pm cdt, a severe thunderstorm capable of producing a tornado was located over reasnor, or 6 miles south of newton, moving east at 50 mph (radar indicated rotation). Hazards include tornado and quarter size hail. Flying debris will be dangerous to those caught without shelter. mobile homes will be damaged or destroyed. damage to roofs, windows, and vehicles will occur. tree damage is likely. this dangerous storm will be near, sully and kellogg around 1140 pm cdt. lynnville and oakland acres around 1145 pm cdt. grinnell, searsboro and grinnell regional airport around 1150 pm cdt. This includes interstate 80 between mile markers 159 and 184.
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| 4/4/2023 7:57 PM CDT |
 At 756 pm cdt, a severe thunderstorm was located over holiday lake, or 13 miles east of grinnell, moving northeast at 55 mph (radar indicated). Hazards include ping pong ball size hail and 60 mph wind gusts. People and animals outdoors will be injured. expect hail damage to roofs, siding, windows, and vehicles. expect wind damage to roofs, siding, and trees. locations impacted include, chelsea, hartwick and elberon. this includes interstate 80 between mile markers 182 and 199. hail threat, radar indicated max hail size, 1. 50 in wind threat, radar indicated max wind gust, 60 mph.
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| 4/4/2023 7:37 PM CDT |
 At 736 pm cdt, a severe thunderstorm was located near grinnell regional airport, or 6 miles south of grinnell, moving northeast at 55 mph. this is a destructive storm for jasper and poweshiek (radar indicated). Hazards include baseball size hail and 60 mph wind gusts. People and animals outdoors will be severely injured. expect shattered windows, extensive damage to roofs, siding, and vehicles. this severe storm will be near, grinnell around 740 pm cdt. other locations in the path of this severe thunderstorm include malcom, brooklyn, holiday lake, hartwick and chelsea. this includes interstate 80 between mile markers 173 and 204. thunderstorm damage threat, destructive hail threat, radar indicated max hail size, 2. 75 in wind threat, radar indicated max wind gust, 60 mph.
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| 4/4/2023 7:24 PM CDT |
 At 723 pm cdt, a severe thunderstorm was located near sully, or 9 miles north of pella, moving northeast at 55 mph (radar indicated). Hazards include 60 mph wind gusts and half dollar size hail. Hail damage to vehicles is expected. expect wind damage to roofs, siding, and trees. this severe thunderstorm will be near, lynnville around 730 pm cdt. oakland acres and searsboro around 735 pm cdt. grinnell regional airport around 740 pm cdt. other locations in the path of this severe thunderstorm include grinnell, malcom, brooklyn, holiday lake, hartwick and chelsea. this includes interstate 80 between mile markers 173 and 204. hail threat, radar indicated max hail size, 1. 25 in wind threat, radar indicated max wind gust, 60 mph.
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| 8/27/2022 4:51 PM CDT | At 451 pm cdt, a severe thunderstorm was located over grinnell, moving north at 10 mph (radar indicated). Hazards include quarter size hail. Damage to vehicles is expected. this severe thunderstorm will remain over mainly rural areas of northwestern poweshiek, southwestern tama and northeastern jasper counties, including the following locations, montour. hail threat, radar indicated max hail size, 1. 00 in wind threat, radar indicated max wind gust, <50 mph. |
| 8/27/2022 4:32 PM CDT | Quarter sized hail reported 0.6 miles NNE of Grinnell, IA, report from mping: quarter hail. |
| 8/19/2022 4:19 PM CDT |
 At 419 pm cdt, a severe thunderstorm was located near grinnell, moving east at 35 mph (radar indicated). Hazards include 60 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. expect wind damage to roofs, siding, and trees. this severe thunderstorm will remain over mainly rural areas of northwestern poweshiek county, including the following locations, grinnell regional airport and malcom. this includes interstate 80 between mile markers 181 and 197. hail threat, radar indicated max hail size, 1. 00 in wind threat, radar indicated max wind gust, 60 mph.
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| 8/19/2022 4:03 PM CDT |
 At 403 pm cdt, a severe thunderstorm was located near rock creek lake, or near grinnell, moving east at 25 mph (radar indicated). Hazards include 60 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. expect wind damage to roofs, siding, and trees. this severe thunderstorm will be near, grinnell and grinnell regional airport around 415 pm cdt. other locations in the path of this severe thunderstorm include malcom. this includes interstate 80 between mile markers 175 and 197. hail threat, radar indicated max hail size, 1. 00 in wind threat, radar indicated max wind gust, 60 mph.
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| 4/23/2022 8:17 PM CDT |
 At 817 pm cdt, severe thunderstorms were located along a line extending from near conrad to 9 miles northwest of rock creek lake to near monroe, moving northeast at 55 mph (broadcast media). Hazards include 60 mph wind gusts. expect damage to roofs, siding, and trees
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| 3/5/2022 6:25 PM CST |
 At 625 pm cst, a confirmed tornado was located 8 miles north of grinnell, moving northeast at 40 mph (weather spotters confirmed tornado). Hazards include damaging tornado and quarter size hail. Flying debris will be dangerous to those caught without shelter. mobile homes will be damaged or destroyed. damage to roofs, windows, and vehicles will occur. tree damage is likely. Locations impacted include, toledo and tama.
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| 3/5/2022 6:03 PM CST |
 At 602 pm cst, a confirmed tornado was located near newton, moving northeast at 45 mph (weather spotters confirmed tornado). Hazards include damaging tornado and quarter size hail. Flying debris will be dangerous to those caught without shelter. mobile homes will be damaged or destroyed. damage to roofs, windows, and vehicles will occur. tree damage is likely. the tornado will be near, rock creek lake around 610 pm cst. grinnell around 620 pm cst. Other locations in the path of this tornadic thunderstorm include toledo and tama.
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| 12/15/2021 7:37 PM CST |
 At 736 pm cst, severe thunderstorms were located along a line extending from near ladora to near lancaster, moving east at 65 mph (radar indicated). Hazards include 70 mph wind gusts. Expect considerable tree damage. damage is likely to mobile homes, roofs, and outbuildings. Locations impacted include, ottumwa, oskaloosa, grinnell, centerville, albia, bloomfield, montezuma, brooklyn, new sharon, eddyville, ottumwa industrial airport, lake sundown, rathbun lake, eldon, victor, fremont, moravia, agency, moulton and beacon.
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| 12/15/2021 7:25 PM CST | 2 semis overturned on i80 wb near the 185 to 186 mm... just east of grinnel in poweshiek county IA, 4.3 miles WNW of Grinnell, IA |
| 12/15/2021 7:10 PM CST |
 At 710 pm cst, severe thunderstorms were located along a line extending from near tama to near oskaloosa, moving east at 75 mph (radar indicated). Hazards include 70 mph wind gusts. Expect considerable tree damage. damage is likely to mobile homes, roofs, and outbuildings. locations impacted include, newton, pella, grinnell, knoxville, monroe, melcher-dallas, baxter, iowa speedway, knoxville raceway, lake red rock, rock creek lake, sully, kellogg, lovilia, bussey, lynnville, harvey, lambs grove, leighton and oakland acres. thunderstorm damage threat, considerable hail threat, radar indicated max hail size, <. 75 in wind threat, radar indicated max wind gust, 70 mph.
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| 12/15/2021 7:09 PM CST |
 At 708 pm cst, severe thunderstorms were located along a line extending from near grinnell to 11 miles west of unionville, moving east at 65 mph (radar indicated). Hazards include 70 mph wind gusts. Expect considerable tree damage. Damage is likely to mobile homes, roofs, and outbuildings.
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| 12/15/2021 6:24 PM CST |
 At 623 pm cst, severe thunderstorms were located along a line extending from slater to near new virginia, moving east at 75 mph (radar indicated). Hazards include 70 mph wind gusts. Expect considerable tree damage. damage is likely to mobile homes, roofs, and outbuildings. severe thunderstorms will be near, melcher-dallas around 640 pm cst. other locations in the path of these severe thunderstorms include baxter and rock creek lake. this includes the following highways, interstate 35 between mile markers 39 and 72, and between mile markers 87 and 101. interstate 80 between mile markers 118 and 189. interstate 235 between mile markers 1 and 14. thunderstorm damage threat, considerable hail threat, radar indicated max hail size, <. 75 in wind threat, radar indicated max wind gust, 70 mph.
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| 8/10/2021 3:00 PM CDT |
 At 300 pm cdt, a severe thunderstorm was located 8 miles southwest of meskwaki casino, or 11 miles north of grinnell, moving east at 40 mph (radar indicated). Hazards include 60 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. expect wind damage to roofs, siding, and trees. this severe thunderstorm will be near, meskwaki casino around 310 pm cdt. toledo and tama around 320 pm cdt. hail threat, radar indicated max hail size, 1. 00 in wind threat, radar indicated max wind gust, 60 mph.
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| 7/14/2021 9:26 PM CDT |
 The severe thunderstorm warning for northern poweshiek and southern tama counties will expire at 930 pm cdt, the storm which prompted the warning has moved out of the area. therefore, the warning will be allowed to expire. however gusty winds and heavy rain are still possible with this thunderstorm. a tornado watch remains in effect until 1100 pm cdt for central iowa.
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| 7/14/2021 9:10 PM CDT |
 At 909 pm cdt, a severe thunderstorm was located near belle plaine, or 14 miles southeast of toledo, moving east at 30 mph (radar indicated). Hazards include 60 mph wind gusts. Expect damage to roofs, siding, and trees. locations impacted include, grinnell, tama, brooklyn, victor, holiday lake, malcom, chelsea, hartwick and grinnell regional airport. This includes interstate 80 between mile markers 193 and 204.
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| 7/14/2021 9:05 PM CDT |
 At 905 pm cdt, a severe thunderstorm was located 7 miles west of belle plaine, or 12 miles southeast of toledo, moving east at 40 mph (radar indicated). Hazards include 60 mph wind gusts. Expect damage to roofs, siding, and trees. locations impacted include, grinnell, toledo, tama, brooklyn, meskwaki casino, le grand, victor, holiday lake, malcom, chelsea, montour, elberon, hartwick, vining, grinnell regional airport and toledo municipal airport. This includes interstate 80 between mile markers 193 and 204.
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| 7/14/2021 8:45 PM CDT |
 At 844 pm cdt, a severe thunderstorm was located 8 miles north of grinnell, moving east at 30 mph (radar indicated). Hazards include 60 mph wind gusts. expect damage to roofs, siding, and trees
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| 6/20/2021 8:13 PM CDT |
 At 813 pm cdt, a severe thunderstorm was located near grinnell, moving east at 20 mph (radar indicated). Hazards include 60 mph wind gusts and nickel size hail. Expect damage to roofs, siding, and trees. locations impacted include, grinnell, brooklyn, victor, holiday lake, malcom, hartwick and guernsey. This includes interstate 80 between mile markers 191 and 204.
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| 6/20/2021 7:59 PM CDT |
 At 759 pm cdt, a severe thunderstorm was located over grinnell, moving east at 20 mph (radar indicated). Hazards include 60 mph wind gusts and nickel size hail. expect damage to roofs, siding, and trees
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| 6/20/2021 6:06 PM CDT |
 At 606 pm cdt, a severe thunderstorm was located near montezuma, moving east at 25 mph (trained weather spotters). Hazards include 60 mph wind gusts and nickel size hail. Expect damage to roofs, siding, and trees. locations impacted include, grinnell, rock creek lake, malcom, oakland acres, searsboro, grinnell regional airport and rock creek state park. This includes interstate 80 between mile markers 175 and 193.
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| 6/20/2021 5:45 PM CDT |
 At 544 pm cdt, a severe thunderstorm was located near grinnell, moving east at 25 mph (trained weather spotters reported half dollar sized hail near oakland acres at 5:41 pm). Hazards include 60 mph wind gusts and half dollar size hail. Hail damage to vehicles is expected. expect wind damage to roofs, siding, and trees. this severe thunderstorm will remain over mainly rural areas of southwestern poweshiek and east central jasper counties, including the following locations, grinnell regional airport, malcom, oakland acres, rock creek state park and searsboro. This includes interstate 80 between mile markers 175 and 193.
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| 6/20/2021 5:41 PM CDT | Half Dollar sized hail reported 3.2 miles NE of Grinnell, IA |
| 6/20/2021 5:33 PM CDT |
 At 533 pm cdt, a severe thunderstorm was located near rock creek lake, or 7 miles west of grinnell, moving east at 25 mph (radar indicated). Hazards include 60 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. expect wind damage to roofs, siding, and trees. this severe thunderstorm will be near, grinnell around 550 pm cdt. This includes interstate 80 between mile markers 170 and 193.
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| 8/10/2020 12:10 PM CDT | Semi blown over on i-80 just west of the grinnell interchang in poweshiek county IA, 2.1 miles NNE of Grinnell, IA |
| 8/10/2020 12:04 PM CDT |
 At 1203 pm cdt, severe thunderstorms were located along a line extending from near traer to near victor to 6 miles west of delta, moving east at 60 mph. these are very dangerous storms (trained weather spotters reporting widespread wind damage). Hazards include 90 mph wind gusts and quarter size hail. some areas may have winds in excess of 100 mph!. You are in a life-threatening situation. flying debris may be deadly to those caught without shelter. mobile homes will be heavily damaged or destroyed. homes and businesses will have substantial roof and window damage. expect extensive tree damage and power outages. locations impacted include, marshalltown, oskaloosa, pella, grinnell, toledo, montezuma, tama, traer, brooklyn, dysart, new sharon, conrad, meskwaki casino, rock creek lake, gladbrook, le grand, victor, sully, garwin and gilman. This includes interstate 80 between mile markers 175 and 204.
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| 8/10/2020 11:52 AM CDT |
 At 1152 am cdt, severe thunderstorms were located along a line extending from 8 miles east of conrad to near brooklyn to near oskaloosa, moving east at 60 mph. these are very dangerous storms (trained spotters). Hazards include 90 mph wind gusts and quarter size hail. You are in a life-threatening situation. flying debris may be deadly to those caught without shelter. mobile homes will be heavily damaged or destroyed. homes and businesses will have substantial roof and window damage. Expect extensive tree damage and power outages.
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| 8/10/2020 11:44 AM CDT |
 At 1143 am cdt, severe thunderstorms were located along a line extending from 9 miles southwest of reinbeck to near brooklyn to 6 miles northwest of oskaloosa, moving east at 70 mph. these are very dangerous storms (radar indicated). Hazards include 80 mph wind gusts and quarter size hail. Flying debris will be dangerous to those caught without shelter. mobile homes will be heavily damaged. expect considerable damage to roofs, windows, and vehicles. extensive tree damage and power outages are likely. locations impacted include, marshalltown, newton, oskaloosa, pella, grinnell, toledo, montezuma, tama, colfax, monroe, traer, prairie city, state center, brooklyn, dysart, new sharon, baxter, iowa speedway, meskwaki casino and rock creek lake. This includes interstate 80 between mile markers 154 and 204.
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| 8/10/2020 11:33 AM CDT |
 At 1133 am cdt, severe thunderstorms were located along a line extending from conrad to near grinnell to pella, moving east at 70 mph. these are very dangerous storms (radar indicated). Hazards include 80 mph wind gusts and quarter size hail. Flying debris will be dangerous to those caught without shelter. mobile homes will be heavily damaged. expect considerable damage to roofs, windows, and vehicles. extensive tree damage and power outages are likely. locations impacted include, marshalltown, newton, altoona, oskaloosa, pella, grinnell, pleasant hill, nevada, toledo, montezuma, carlisle, bondurant, story city, tama, mitchellville, colfax, monroe, traer, prairie city and state center. This includes interstate 80 between mile markers 142 and 204.
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| 8/10/2020 11:19 AM CDT |
 At 1118 am cdt, severe thunderstorms were located along a line extending from 12 miles southwest of eldora to near newton to pleasantville, moving east at 70 mph. these are very dangerous storms (radar indicated). Hazards include 80 mph wind gusts and quarter size hail. Flying debris will be dangerous to those caught without shelter. mobile homes will be heavily damaged. expect considerable damage to roofs, windows, and vehicles. Extensive tree damage and power outages are likely.
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| 7/11/2020 6:43 PM CDT |
 At 642 pm cdt, a severe thunderstorm was located 9 miles south of grinnell, moving southeast at 45 mph (trained weather spotters reported quarter sized hail just east of newton as the storm passed through). Hazards include 60 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. expect wind damage to roofs, siding, and trees. locations impacted include, grinnell, montezuma, new sharon, lynnville, deep river, barnes city, rose hill and searsboro. This includes interstate 80 between mile markers 182 and 185.
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| 7/11/2020 6:30 PM CDT |
 At 629 pm cdt, a severe thunderstorm was located near rock creek lake, or 7 miles east of newton, moving southeast at 45 mph (trained weather spotters have reported a history of severe hail with this storm). Hazards include 60 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees.
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| 7/11/2020 6:17 PM CDT |
 At 617 pm cdt, a severe thunderstorm was located near newton, moving southeast at 55 mph (trained weather spotters). Hazards include ping pong ball size hail and 60 mph wind gusts. People and animals outdoors will be injured. expect hail damage to roofs, siding, windows, and vehicles. expect wind damage to roofs, siding, and trees. locations impacted include, newton, grinnell, rock creek lake, iowa speedway, sully, kellogg, oakland acres, grinnell regional airport and rock creek state park. This includes interstate 80 between mile markers 167 and 181.
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| 7/11/2020 6:03 PM CDT |
 At 603 pm cdt, a severe thunderstorm was located near baxter, or 15 miles southeast of nevada, moving southeast at 55 mph (trained weather spotters have reported up to inch and a half hail with the storm so far). Hazards include two inch hail and 60 mph wind gusts. People and animals outdoors will be injured. expect hail damage to roofs, siding, windows, and vehicles. Expect wind damage to roofs, siding, and trees.
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| 6/22/2020 2:22 AM CDT |
 The severe thunderstorm warning for southwestern poweshiek and southeastern jasper counties will expire at 230 am cdt, the storm which prompted the warning has weakened below severe limits, and no longer poses an immediate threat to life or property. therefore, the warning will be allowed to expire. however gusty winds up to 50 mph are still possible with this thunderstorm.
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| 6/22/2020 2:02 AM CDT |
 At 201 am cdt, a severe thunderstorm was located 9 miles south of rock creek lake, or 10 miles southwest of grinnell, moving southeast at 40 mph (radar indicated). Hazards include 60 mph wind gusts and nickel size hail. Expect damage to roofs, siding, and trees. locations impacted include, grinnell, montezuma, rock creek lake, sully, kellogg, lynnville, oakland acres, searsboro, grinnell regional airport and rock creek state park. This includes interstate 80 between mile markers 169 and 188.
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| 6/22/2020 1:46 AM CDT |
 At 146 am cdt, a severe thunderstorm was located over iowa speedway, or near newton, moving east at 30 mph (radar indicated). Hazards include 60 mph wind gusts and nickel size hail. expect damage to roofs, siding, and trees
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| 8/20/2019 6:36 AM CDT |
 At 636 am cdt, the leading edge of severe thunderstorms was located along a line extending from near keswick to 7 miles southwest of delta to near albia to 9 miles south of chariton, moving east at 65 mph (radar indicated). Hazards include 60 mph wind gusts. Expect damage to roofs, siding, and trees. locations impacted include, oskaloosa, pella, grinnell, knoxville, osceola, chariton, albia, montezuma, brooklyn, new sharon, melcher-dallas, eddyville, knoxville raceway, rock creek lake, lakeside casino, lake red rock, victor, sully, murray and fremont. this includes the following highways, interstate 35 between mile markers 30 and 42. Interstate 80 between mile markers 172 and 204.
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| 8/20/2019 5:55 AM CDT |
 The national weather service in des moines has issued a * severe thunderstorm warning for. monroe county in south central iowa. poweshiek county in central iowa. lucas county in south central iowa. Marion county in south central iowa.
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| 6/28/2019 9:30 AM CDT |
 At 930 am cdt, a severe thunderstorm was located over grinnell, moving southeast at 40 mph (radar indicated). Hazards include 60 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. expect wind damage to roofs, siding, and trees. locations impacted include, grinnell, rock creek lake, lynnville, malcom, oakland acres, grinnell regional airport and rock creek state park. This includes interstate 80 between mile markers 175 and 192.
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| 6/28/2019 9:22 AM CDT |
 At 922 am cdt, a severe thunderstorm was located near grinnell, moving southeast at 40 mph (radar indicated). Hazards include 60 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees.
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| 6/15/2019 6:20 PM CDT |
 At 619 pm cdt, severe thunderstorms were located along a line extending from near belle plaine to near montezuma to 6 miles northwest of oskaloosa, moving east at 35 mph (radar indicated). Hazards include 60 mph wind gusts and penny size hail. Expect damage to roofs, siding, and trees. locations impacted include, pella, grinnell, montezuma, brooklyn, new sharon, victor, sully, holiday lake, lynnville, malcom, deep river, barnes city, searsboro, hartwick, guernsey and grinnell regional airport. This includes interstate 80 between mile markers 181 and 204.
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| 6/15/2019 6:06 PM CDT |
 At 606 pm cdt, severe thunderstorms were located along a line extending from 7 miles west of belle plaine to near montezuma to near pella, moving east at 50 mph (radar indicated). Hazards include 60 mph wind gusts and penny size hail. Expect damage to roofs, siding, and trees. locations impacted include, newton, pella, grinnell, montezuma, monroe, brooklyn, new sharon, iowa speedway, rock creek lake, victor, sully, kellogg, gilman, holiday lake, lynnville, malcom, deep river, barnes city, oakland acres and reasnor. This includes interstate 80 between mile markers 165 and 204.
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| 6/15/2019 5:49 PM CDT |
 The national weather service in des moines has issued a * severe thunderstorm warning for. poweshiek county in central iowa. southeastern marshall county in central iowa. northeastern marion county in south central iowa. Southern tama county in central iowa.
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| 5/16/2019 8:58 PM CDT |
 The national weather service in des moines has issued a * severe thunderstorm warning for. southern poweshiek county in central iowa. southeastern jasper county in central iowa. until 945 pm cdt. At 858 pm cdt, severe thunderstorms were located along a line.
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| 5/16/2019 8:02 PM CDT |
 At 801 pm cdt, a severe thunderstorm was located near iowa speedway, or near newton, moving east at 25 mph (radar indicated). Hazards include half dollar size hail. damage to vehicles is expected
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| 10/9/2018 5:08 PM CDT |
 At 507 pm cdt, a severe thunderstorm capable of producing a tornado was located over rock creek lake, or 4 miles west of grinnell, moving north at 25 mph (radar indicated rotation). Hazards include tornado. Flying debris will be dangerous to those caught without shelter. mobile homes will be damaged or destroyed. damage to roofs, windows, and vehicles will occur. tree damage is likely. Locations impacted include, grinnell, rock creek lake, oakland acres and rock creek state park.
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| 10/9/2018 4:59 PM CDT |
 At 459 pm cdt, a severe thunderstorm capable of producing a tornado was located 6 miles southwest of grinnell, moving northeast at 30 mph (radar indicated rotation). Hazards include tornado. Flying debris will be dangerous to those caught without shelter. mobile homes will be damaged or destroyed. damage to roofs, windows, and vehicles will occur. tree damage is likely. this dangerous storm will be near, rock creek lake around 510 pm cdt. grinnell around 515 pm cdt. other locations impacted by this tornadic thunderstorm include oakland acres and rock creek state park. This includes interstate 80 between mile markers 175 and 179.
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| 10/8/2018 10:13 PM CDT |
 At 1013 pm cdt, a severe thunderstorm capable of producing a tornado was located 7 miles east of grinnell, moving northeast at 35 mph (radar indicated rotation). Hazards include tornado. Flying debris will be dangerous to those caught without shelter. mobile homes will be damaged or destroyed. damage to roofs, windows, and vehicles will occur. tree damage is likely. locations impacted include, grinnell and grinnell regional airport. This includes interstate 80 between mile markers 182 and 189.
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| 10/8/2018 10:10 PM CDT |
 A severe thunderstorm warning remains in effect until 1015 pm cdt for poweshiek county, in addition, a tornado warning is in effect for a small portion of northwest poweshiek county until 1030 pm cdt. at 1008 pm cdt, a severe thunderstorm was located near brooklyn, or 9 miles east of grinnell, moving northeast at 45 mph (radar indicated). Hazards include 60 mph wind gusts. Expect damage to roofs, siding, and trees. locations impacted include, grinnell, montezuma, brooklyn, victor, holiday lake, malcom, hartwick and grinnell regional airport. This includes interstate 80 between mile markers 181 and 204.
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| 10/8/2018 10:03 PM CDT |
 At 1003 pm cdt, a severe thunderstorm capable of producing a tornado was located near grinnell, moving northeast at 45 mph (radar indicated rotation). Hazards include tornado. Flying debris will be dangerous to those caught without shelter. mobile homes will be damaged or destroyed. damage to roofs, windows, and vehicles will occur. tree damage is likely. this tornadic thunderstorm will remain over mainly rural areas of northwestern poweshiek county, including the following locations, grinnell regional airport. This includes interstate 80 between mile markers 182 and 189.
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| 10/8/2018 9:54 PM CDT |
 At 954 pm cdt, a severe thunderstorm was located near grinnell, moving northeast at 45 mph (radar indicated). Hazards include 60 mph wind gusts. expect damage to roofs, siding, and trees
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| 8/31/2018 11:18 PM CDT |
 At 1118 pm cdt, a severe thunderstorm was located 8 miles south of grinnell, moving northeast at 35 mph (radar indicated). Hazards include 60 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. expect wind damage to roofs, siding, and trees. locations impacted include, grinnell, montezuma, rock creek lake, sully, lynnville, oakland acres, searsboro, grinnell regional airport and rock creek state park. This includes interstate 80 between mile markers 174 and 189.
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| 8/31/2018 11:09 PM CDT |
 At 1055 pm cdt, a severe thunderstorm was located 7 miles east of monroe, or 8 miles north of pella, moving northeast at 35 mph (radar indicated). Hazards include 60 mph wind gusts and half dollar size hail. Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees.
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| 8/31/2018 10:55 PM CDT |
 At 1055 pm cdt, a severe thunderstorm was located 7 miles east of monroe, or 8 miles north of pella, moving northeast at 35 mph (radar indicated). Hazards include 60 mph wind gusts and half dollar size hail. Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees.
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| 8/5/2018 6:06 PM CDT |
 At 605 pm cdt, a severe thunderstorm was located near grinnell, moving east at 30 mph (radar indicated). Hazards include 60 mph wind gusts and penny size hail. Expect damage to roofs, siding, and trees. Locations impacted include, grinnell, brooklyn and holiday lake.
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| 8/5/2018 5:57 PM CDT |
 At 557 pm cdt, a severe thunderstorm was located near grinnell, moving east at 30 mph (radar indicated). Hazards include 60 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. expect wind damage to roofs, siding, and trees. Locations impacted include, grinnell, brooklyn, rock creek lake, holiday lake and rock creek state park.
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| 8/5/2018 5:42 PM CDT |
 At 541 pm cdt, a severe thunderstorm was located near rock creek lake, or 9 miles west of grinnell, moving east at 30 mph (radar indicated). Hazards include quarter size hail. damage to vehicles is expected
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| 6/6/2018 7:41 PM CDT |
 The severe thunderstorm warning for southern poweshiek, northeastern marion, mahaska and southeastern jasper counties will expire at 745 pm cdt, the storm which prompted the warning has moved out of the area. therefore, the warning will be allowed to expire. however small hail, gusty winds and heavy rain are still possible with this thunderstorm. a severe thunderstorm warning continues for southern marion and mahaska counties until 815 pm cdt. a severe thunderstorm watch remains in effect until 1000 pm cdt for central and south central iowa.
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| 6/6/2018 7:07 PM CDT |
 At 706 pm cdt, a severe thunderstorm was located over new sharon, or 10 miles southwest of montezuma, moving south at 15 mph (trained weather spotters reported 62 mph winds at pella at 701 pm cdt this evening). Hazards include 60 mph wind gusts and nickel size hail. Expect damage to roofs, siding, and trees. locations impacted include, newton, oskaloosa, pella, grinnell, knoxville, montezuma, monroe, new sharon, iowa speedway, knoxville raceway, lake red rock, sully, beacon, university park, lynnville, deep river, harvey, barnes city, lambs grove and rose hill. This includes interstate 80 between mile markers 162 and 204.
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| 6/6/2018 6:43 PM CDT |
 At 643 pm cdt, a severe thunderstorm was located near new sharon, or 7 miles west of montezuma, moving south at 15 mph (radar indicated). Hazards include 60 mph wind gusts and nickel size hail. expect damage to roofs, siding, and trees
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| 6/6/2018 6:40 PM CDT | 2 large trees down (3ft and 2.5ft diameter) via social medi in jasper county IA, 8.2 miles NNE of Grinnell, IA |
| 6/6/2018 6:35 PM CDT | Grinnell airpor in poweshiek county IA, 1.6 miles S of Grinnell, IA |
| 6/6/2018 6:26 PM CDT |
 At 626 pm cdt, a severe thunderstorm was located near grinnell, moving south at 35 mph (radar indicated). Hazards include 60 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. expect wind damage to roofs, siding, and trees. locations impacted include, newton, grinnell, montezuma, brooklyn, iowa speedway, rock creek lake, victor, sully, kellogg, gilman, holiday lake, lynnville, malcom, deep river, barnes city, oakland acres, reasnor, searsboro, hartwick and guernsey. This includes interstate 80 between mile markers 165 and 204.
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| 6/6/2018 6:18 PM CDT | Straight line winds with damage to utility poles. several power lines down including several high voltage lines. debris throughout city blocking street in poweshiek county IA, 0.9 miles SSW of Grinnell, IA |
| 6/6/2018 6:08 PM CDT |
 At 608 pm cdt, a severe thunderstorm was located near grinnell, moving south at 35 mph (radar indicated). Hazards include 60 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees.
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| 7/20/2017 11:29 PM CDT |
 At 1127 pm cdt, severe thunderstorms were located along a line extending from 6 miles northwest of brooklyn to near montezuma, moving east at 40 mph (measured wind gust of 58 mph in grinnell at 1120 pm cdt). Hazards include 60 mph wind gusts. expect damage to roofs, siding, and trees
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| 6/29/2017 5:05 PM CDT |
 At 1004 pm cdt, severe thunderstorms were located along a line extending from near tama to near newton, moving southeast at 45 mph (radar indicated). Hazards include 60 mph wind gusts. Expect damage to roofs, siding, and trees. locations impacted include, grinnell, toledo, tama, meskwaki casino, rock creek lake, kellogg, gilman, holiday lake, chelsea, montour, laurel, oakland acres, vining, grinnell regional airport, toledo municipal airport and rock creek state park. This includes interstate 80 between mile markers 170 and 184.
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| 6/29/2017 4:42 PM CDT |
 At 941 pm cdt, severe thunderstorms were located along a line extending from 8 miles northwest of meskwaki casino to near baxter, moving southeast at 50 mph (radar indicated). Hazards include 60 mph wind gusts. expect damage to roofs, siding, and trees
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| 6/16/2017 10:55 PM CDT |
 The severe thunderstorm warning for northwestern poweshiek, southeastern marshall, southwestern tama and northeastern jasper counties will expire at 1100 pm cdt, the storm which prompted the warning has weakened below severe limits, and no longer poses an immediate threat to life or property. therefore the warning will be allowed to expire. a severe thunderstorm watch remains in effect until 400 am cdt for central iowa.
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| 6/16/2017 10:43 PM CDT |
 At 1043 pm cdt, a severe thunderstorm was located near meskwaki casino, or 8 miles southwest of toledo, moving southeast at 35 mph (radar indicated). Hazards include 60 mph wind gusts. Expect damage to roofs, siding, and trees. Locations impacted include, marshalltown, toledo, tama, meskwaki casino, le grand, gilman, montour, laurel, ferguson and toledo municipal airport.
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| 6/16/2017 10:26 PM CDT |
 At 1025 pm cdt, a severe thunderstorm was located near marshalltown, moving southeast at 40 mph (trained weather spotters). Hazards include 60 mph wind gusts. expect damage to roofs, siding, and trees
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| 6/16/2017 12:27 AM CDT |
 The severe thunderstorm warning for poweshiek county will expire at 1230 am cdt, the storm which prompted the warning has weakened below severe limits, and no longer poses an immediate threat to life or property. therefore the warning will be allowed to expire. however gusty winds are still possible with this thunderstorm. a severe thunderstorm watch remains in effect until 100 am cdt for central iowa. to report severe weather, contact your nearest law enforcement agency. they will relay your report to the national weather service des moines.
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| 6/16/2017 12:14 AM CDT |
 At 1214 am cdt, a severe thunderstorm was located 7 miles southwest of brooklyn, or 7 miles north of montezuma, moving east at 40 mph (radar indicated). Hazards include 60 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. expect wind damage to roofs, siding, and trees. locations impacted include, grinnell, montezuma, brooklyn, victor, holiday lake, malcom, deep river, searsboro, hartwick, guernsey and grinnell regional airport. This includes interstate 80 between mile markers 180 and 204.
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| 6/16/2017 12:07 AM CDT | From the awos at the grinnell regional airpor in poweshiek county IA, 1.3 miles NNE of Grinnell, IA |
| 6/15/2017 11:54 PM CDT |
 At 1154 pm cdt, a severe thunderstorm was located near rock creek lake, or near grinnell, moving east at 40 mph (radar indicated). Hazards include ping pong ball size hail and 60 mph wind gusts. People and animals outdoors will be injured. expect hail damage to roofs, siding, windows, and vehicles. Expect wind damage to roofs, siding, and trees.
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| 5/17/2017 5:26 PM CDT |
 The severe thunderstorm warning for poweshiek, monroe, wapello, eastern marion, mahaska, northern appanoose and eastern jasper counties will expire at 530 pm cdt, the storms which prompted the warning have moved out of the area. therefore the warning will be allowed to expire. additional storms are possible through 7 pm. a tornado watch remains in effect until 700 pm cdt for south central, central and southeastern iowa.
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| 5/17/2017 5:25 PM CDT | Storm damage reported in poweshiek county IA, 1.5 miles NNE of Grinnell, IA |
| 5/17/2017 5:01 PM CDT |
 At 500 pm cdt, severe thunderstorms were located along a line extending from near newton to new sharon to near hedrick, moving northeast at 55 mph (trained weather spotters. at 451 pm...65 mph winds were reported by a department of transportation weather station). Hazards include 60 mph wind gusts and nickel size hail. Expect damage to roofs, siding, and trees. locations impacted include, ottumwa, newton, oskaloosa, pella, grinnell, knoxville, albia, montezuma, monroe, brooklyn, new sharon, eddyville, ottumwa industrial airport, iowa speedway, knoxville raceway, rock creek lake, lake red rock, sully, fremont and moravia. this includes interstate 80 between mile markers 165 and 200. A tornado watch remains in effect until 700 pm cdt for south central, central and southeastern iowa.
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| 5/17/2017 4:43 PM CDT |
 At 442 pm cdt, severe thunderstorms were located along a line extending from 6 miles north of monroe to 8 miles southeast of pella to near ottumwa, moving northeast at 65 mph (radar indicated). Hazards include 60 mph wind gusts and nickel size hail. Expect damage to roofs, siding, and trees. locations impacted include, ottumwa, newton, oskaloosa, pella, grinnell, knoxville, albia, montezuma, monroe, brooklyn, new sharon, eddyville, ottumwa industrial airport, iowa speedway, knoxville raceway, rock creek lake, lake red rock, sully, fremont and moravia. this includes interstate 80 between mile markers 165 and 200. A tornado watch remains in effect until 700 pm cdt for south central, central and southeastern iowa.
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| 5/17/2017 4:27 PM CDT |
 At 427 pm cdt, severe thunderstorms were located along a line extending from near carlisle to near knoxville to near lake sundown, moving northeast at 65 mph (radar indicated). Hazards include 60 mph wind gusts and nickel size hail. expect damage to roofs, siding, and trees
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| 4/15/2017 7:41 PM CDT |
 At 741 pm cdt, a severe thunderstorm was located near grinnell, moving northeast at 45 mph (radar indicated). Hazards include quarter size hail. Damage to vehicles is expected. locations impacted include, grinnell, brooklyn, victor, holiday lake, malcom, chelsea, searsboro, hartwick and grinnell regional airport. This includes interstate 80 between mile markers 181 and 204.
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| 4/15/2017 7:36 PM CDT | Quarter sized hail reported 2.7 miles NNE of Grinnell, IA, trained spotter reported up to quarter sized hail. |
| 4/15/2017 7:26 PM CDT |
 At 725 pm cdt, a severe thunderstorm was located 8 miles southeast of iowa speedway, or 10 miles southeast of newton, moving northeast at 40 mph (radar indicated). Hazards include quarter size hail. damage to vehicles is expected
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| 3/6/2017 8:15 PM CST |
 At 814 pm cst, severe thunderstorms were located along a line extending from la porte city to 6 miles west of montezuma, moving east at 45 mph (emergency management. these storms have a history of producing strong winds in excess of 60 mph). Hazards include 60 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. expect wind damage to roofs, siding, and trees. locations impacted include, grinnell, toledo, montezuma, tama, traer, brooklyn, dysart, meskwaki casino, victor, sully, holiday lake, lynnville, malcom, deep river, chelsea, clutier, elberon, barnes city, oakland acres and searsboro. this includes interstate 80 between mile markers 177 and 204. A tornado watch remains in effect until 1000 pm cst for central and northeastern iowa.
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| 3/6/2017 8:00 PM CST |
 At 759 pm cst, a severe thunderstorm capable of producing a tornado was located 9 miles south of grinnell, moving northeast at 70 mph (radar indicated rotation). Hazards include tornado. Flying debris will be dangerous to those caught without shelter. mobile homes will be damaged or destroyed. damage to roofs, windows, and vehicles will occur. tree damage is likely. this dangerous storm will be near, grinnell around 810 pm cst. other locations impacted by this tornadic thunderstorm include searsboro, lynnville, grinnell regional airport and sully. This includes interstate 80 between mile markers 178 and 187.
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| 3/6/2017 7:43 PM CST |
 At 743 pm cst, a severe thunderstorm capable of producing a tornado was located near iowa speedway, or 7 miles south of newton, moving northeast at 60 mph (radar indicated rotation). Hazards include tornado and quarter size hail. Flying debris will be dangerous to those caught without shelter. mobile homes will be damaged or destroyed. damage to roofs, windows, and vehicles will occur. tree damage is likely. this dangerous storm will be near, rock creek lake around 800 pm cst. grinnell around 805 pm cst. other locations impacted by this tornadic thunderstorm include searsboro, lynnville, kellogg, grinnell regional airport, reasnor, oakland acres, sully, rock creek state park and newton municipal airport. This includes interstate 80 between mile markers 168 and 188.
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| 3/6/2017 7:40 PM CST |
 At 740 pm cst, severe thunderstorms were located along a line extending from near reinbeck to monroe, moving east at 45 mph (emergency management. 65 mph winds have been reported with these storms in state center). Hazards include 60 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees.
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| 8/4/2016 8:41 PM CDT |
 The severe thunderstorm warning for poweshiek and southeastern jasper counties will expire at 845 pm cdt, the storms which prompted the warning have weakened below severe limits, and no longer pose an immediate threat to life or property. therefore the warning will be allowed to expire. however heavy rain is still possible with these thunderstorms. a severe thunderstorm watch remains in effect until midnight cdt for central iowa.
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| 8/4/2016 8:19 PM CDT |
 At 819 pm cdt, severe thunderstorms were located along a line extending from near norway to near montezuma, moving east at 30 mph (radar indicated). Hazards include 60 mph wind gusts. Expect damage to roofs. siding. and trees. Locations impacted include, grinnell, montezuma, brooklyn, victor, sully, lynnville, malcom, deep river, barnes city, searsboro, hartwick, guernsey and grinnell regional airport.
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| 8/4/2016 7:43 PM CDT |
 At 742 pm cdt, severe thunderstorms were located along a line extending from near van horne to 8 miles northwest of brooklyn to iowa speedway, moving southeast at 30 mph (trained weather spotters). Hazards include 70 mph wind gusts. Expect considerable tree damage. damage is likely to mobile homes, roofs, and outbuildings. Locations impacted include, newton, grinnell, toledo, tama, traer, meskwaki casino, iowa speedway, rock creek lake, le grand, kellogg, gilman, chelsea, montour, laurel, clutier, elberon, lambs grove, oakland acres, reasnor and vining.
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| 8/4/2016 7:41 PM CDT |
 At 741 pm cdt, severe thunderstorms were located along a line extending from near keystone to near grinnell, moving southeast at 30 mph (trained weather spotters). Hazards include 60 mph wind gusts. Expect damage to roofs. siding. And trees.
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| 8/4/2016 7:41 PM CDT |
 At 741 pm cdt, severe thunderstorms were located along a line extending from near keystone to near grinnell, moving southeast at 30 mph (trained weather spotters). Hazards include 60 mph wind gusts. Expect damage to roofs. siding. And trees.
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| 8/4/2016 7:23 PM CDT |
 At 722 pm cdt, severe thunderstorms were located along a line extending from near dysart to 7 miles south of meskwaki casino to near baxter, moving southeast at 40 mph (trained weather spotters). Hazards include 70 mph wind gusts. Expect considerable tree damage. damage is likely to mobile homes, roofs, and outbuildings. Locations impacted include, marshalltown, newton, grinnell, toledo, tama, traer, baxter, meskwaki casino, iowa speedway, rock creek lake, gladbrook, le grand, melbourne, kellogg, garwin, gilman, mingo, chelsea, montour and laurel.
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| 8/4/2016 6:52 PM CDT |
 At 652 pm cdt, severe thunderstorms were located along a line extending from near conrad to 10 miles west of baxter, moving southeast at 30 mph (radar indicated). Hazards include 60 mph wind gusts. Expect damage to roofs. siding. And trees.
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| 11/11/2015 4:03 PM CST |
 At 403 pm cst, severe thunderstorms were located along a line extending from near state center to 7 miles southeast of iowa speedway to 3 miles east of pella, moving northeast at 55 mph (radar indicated). Hazards include 60 mph wind gusts. Expect damage to roofs. Siding and trees.
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| 11/11/2015 3:56 PM CST |
 At 356 pm cst, a severe thunderstorm capable of producing a tornado was located near pella, moving northeast at 40 mph (radar indicated rotation). Hazards include tornado. Flying debris will be dangerous to those caught without shelter. mobile homes will be damaged or destroyed. damage to roofs, windows and vehicles will occur. tree damage is likely. this dangerous storm will be near, grinnell around 435 pm cst. other locations impacted by this tornadic thunderstorm include pella municipal airport, sully, lynnville, searsboro and oakland acres. This includes interstate 80 between mile markers 174 and 184.
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| 7/6/2014 9:19 PM CDT | Quarter sized hail reported 1.2 miles SE of Grinnell, IA, trained spotter reported 1 inch diameter hail 1 w grinnell. delayed report |
| 4/27/2014 3:37 PM CDT | Delayed report of a large tree split in half by straight line winds. relayed by kcci. time estimated from rada in poweshiek county IA, 0.9 miles SSW of Grinnell, IA |
| 4/12/2014 11:18 PM CDT | Quarter sized hail reported 1.9 miles N of Grinnell, IA, quarter sized hail reported at i-80 exit number 282. |
| 6/29/2012 4:47 PM CDT | 3 to 4 large tree limbs...generally 3 to 5 inches in diameter down. one branch was 20 foot lon in poweshiek county IA, 1.7 miles SSW of Grinnell, IA |
| 6/29/2012 4:39 PM CDT | Storm damage reported in poweshiek county IA, 1.7 miles SSW of Grinnell, IA |
| 6/29/2012 4:35 PM CDT | Measured by an iowa dot rwis site on interstate 80. reports of a semi jack knifed in the area as wel in poweshiek county IA, 1.9 miles N of Grinnell, IA |
| 6/29/2012 4:33 PM CDT | Several large road signs and large tree limbs down near interstate 80 south of grinnell. quarter size hail reported as wel in poweshiek county IA, 1.9 miles N of Grinnell, IA |
| 1/1/0001 12:00 AM | Storm damage reported in poweshiek county IA, 0.9 miles SSW of Grinnell, IA |
| 1/1/0001 12:00 AM | Trees down...transformers down...power outages...high winds reported...no estimate of spee in poweshiek county IA, 0.9 miles SSW of Grinnell, IA |
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