Hail Map for Thornton, IA

The Thornton, IA area has had 2 reports of on-the-ground hail by trained spotters, and has been under severe weather warnings 12 times during the past 12 months. Doppler radar has detected hail at or near Thornton, IA on 42 occasions, including 4 occasions during the past year.

Name: Thornton, IA
Where Located: 16.8 miles SW of Mason City, IA
Map: Google Map for Thornton, IA
Population: 422
Housing Units: 204
More Info: Search Google for Thornton, IA

Hail and Wind Damage Spotted near Thornton, IA

Date / Time Report Details
5/29/2019 8:21 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 5/29/2019 8:24 PM CDT The tornado warning for northeastern wright, northwestern franklin, southeastern hancock and southwestern cerro gordo counties will expire at 830 pm cdt, the storm which prompted the warning has weakened below severe limits, and no longer appears capable of producing a tornado. therefore, the warning will be allowed to expire.
5/29/2019 8:02 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 5/29/2019 8:05 PM CDT At 801 pm cdt, a severe thunderstorm capable of producing a tornado was located near elm lake, or 7 miles east of clarion, 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.
8/28/2018 1:25 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 8/28/2018 1:29 PM CDT The severe thunderstorm warning for northeastern wright, northern franklin, southeastern hancock, northwestern butler and southern cerro gordo counties will expire at 130 pm cdt, the storm which prompted the warning has weakened below severe limits, and has exited the warned area. therefore, the warning will be allowed to expire. a severe thunderstorm watch remains in effect until 900 pm cdt for north central iowa. to report severe weather, contact your nearest law enforcement agency. they will relay your report to the national weather service des moines.
8/28/2018 12:58 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 8/28/2018 1:02 PM CDT At 1257 pm cdt, a severe thunderstorm was located 8 miles southwest of sheffield, or 10 miles northwest of hampton, moving northeast at 40 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. locations impacted include, hampton, sheffield, rockwell, latimer, thornton, coulter, meservey, alexander, swaledale, bristow, hansell, chapin, aredale, dougherty, beeds lake state park and hampton municipal airport. This includes interstate 35 between mile markers 163 and 190.
8/28/2018 12:47 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 8/28/2018 12:50 PM CDT At 1247 pm cdt, a severe thunderstorm was located 8 miles southeast of belmond, or 13 miles west of hampton, moving northeast at 40 mph (radar indicated). Hazards include quarter size hail. damage to vehicles is expected
8/28/2018 8:21 AM CDT *** 1 inj *** report of a semi-truck blown over by winds on interstate 35. one individual transported to hospital. time estimate in cerro gordo county IA, 1.9 miles W of Thornton, IA
8/28/2018 8:19 AM CDT Law enforcement reported tree downed onto house in thornton. time and location estimated from rada in cerro gordo county IA, 0.5 miles SW of Thornton, IA
8/28/2018 8:19 AM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 8/28/2018 8:23 AM CDT At 818 am cdt, a severe thunderstorm was located near mason city municipal airport, or 7 miles southwest of mason city, moving east at 45 mph (trained weather spotters. at roughly 810 am, trained spotters reported 2 inch hail in garner). 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. locations impacted include, mason city, nora springs, manly, sheffield, rockwell, mason city municipal airport, clear lake, ventura, thornton, plymouth, fertile, meservey, grafton, hanlontown, alexander, swaledale, rock falls, chapin, aredale and dougherty. This includes interstate 35 between mile markers 171 and 204.
8/28/2018 8:07 AM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 8/28/2018 8:11 AM CDT At 807 am cdt, a severe thunderstorm was located near clear lake, or near garner, moving east at 45 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.
6/30/2018 3:34 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 6/30/2018 3:38 PM CDT At 333 pm cdt, severe thunderstorms were located along a line extending from near mason city to near rockwell to 9 miles west of hampton, moving east at 35 mph (radar indicated). Hazards include 60 mph wind gusts and nickel size hail. Expect damage to roofs, siding, and trees. locations impacted include, mason city, hampton, nora springs, sheffield, rockwell, latimer, thornton, coulter, meservey, alexander, geneva, swaledale, bradford, hansell, chapin, dougherty, burchinal, portland, beeds lake state park and hampton municipal airport. This includes interstate 35 between mile markers 157 and 192.
6/30/2018 3:20 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 6/30/2018 3:26 PM CDT At 320 pm cdt, severe thunderstorms were located along a line extending from 6 miles southeast of clear lake to 6 miles west of sheffield to 10 miles northeast of big wall lake, moving east at 40 mph (radar indicated). Hazards include 70 mph wind gusts and half dollar 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, mason city, hampton, nora springs, sheffield, rockwell, big wall lake, dows, klemme, latimer, thornton, coulter, meservey, alexander, geneva, swaledale, rowan, rock falls, goodell, bradford and hansell. This includes interstate 35 between mile markers 157 and 193.
6/30/2018 3:07 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 6/30/2018 3:10 PM CDT At 306 pm cdt, severe thunderstorms were located along a line extending from near clear lake to 7 miles northeast of belmond to 6 miles southeast of elm lake, moving east at 35 mph. widespread branches and some trees down were reported in goodell with this storm (radar indicated). Hazards include 70 mph wind gusts and ping pong ball size hail. People and animals outdoors will be injured. expect hail damage to roofs, siding, windows, and vehicles. expect considerable tree damage. wind damage is also likely to mobile homes, roofs, and outbuildings. locations impacted include, mason city, hampton, garner, belmond, nora springs, sheffield, rockwell, clear lake, elm lake, big wall lake, mason city municipal airport, ventura, dows, klemme, latimer, thornton, coulter, meservey, alexander and geneva. This includes interstate 35 between mile markers 157 and 194.
6/30/2018 3:04 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 6/30/2018 3:07 PM CDT At 304 pm cdt, severe thunderstorms were located along a line extending from near garner to 6 miles northeast of belmond to near elm lake, moving east at 35 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, mason city, hampton, garner, belmond, nora springs, sheffield, rockwell, clear lake, elm lake, big wall lake, mason city municipal airport, ventura, dows, klemme, latimer, thornton, coulter, meservey, alexander and geneva. This includes interstate 35 between mile markers 157 and 194.
6/30/2018 2:55 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 6/30/2018 2:58 PM CDT At 254 pm cdt, severe thunderstorms were located along a line extending from near garner to near belmond to elm lake, moving east at 45 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.
5/28/2018 5:49 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 5/28/2018 5:52 PM CDT At 546 pm cdt, a severe thunderstorm was located near clear lake, or near garner, moving north at 20 mph (trained weather spotters). Hazards include 70 mph wind gusts and half dollar 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, mason city, forest city, garner, rockwell, mason city municipal airport, clear lake, ventura, klemme, thornton, meservey, crystal lake, swaledale, rock falls, miller, burchinal, portland, mcintosh woods state park, forest city municipal airport and clear lake state park. This includes interstate 35 between mile markers 178 and 200.
5/28/2018 5:27 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 5/28/2018 5:31 PM CDT At 527 pm cdt, a severe thunderstorm was located 8 miles south of clear lake, or 9 miles southeast of garner, moving north at 25 mph (radar indicated). Hazards include golf ball size hail and 70 mph wind gusts. People and animals outdoors will be injured. expect hail damage to roofs, siding, windows, and vehicles. expect considerable tree damage. wind damage is also likely to mobile homes, roofs, and outbuildings. locations impacted include, mason city, forest city, garner, belmond, britt, sheffield, rockwell, clear lake, eagle lake, mason city municipal airport, ventura, klemme, thornton, meservey, crystal lake, alexander, swaledale, rock falls, goodell and duncan. This includes interstate 35 between mile markers 170 and 200.
5/28/2018 5:15 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 5/28/2018 5:19 PM CDT At 514 pm cdt, a severe thunderstorm was located near belmond, or 15 miles northeast of clarion, moving north at 20 mph (radar indicated). Hazards include golf ball size hail and 70 mph wind gusts. People and animals outdoors will be injured. expect hail damage to roofs, siding, windows, and vehicles. expect considerable tree damage. wind damage is also likely to mobile homes, roofs, and outbuildings. locations impacted include, mason city, forest city, garner, clarion, belmond, britt, sheffield, rockwell, clear lake, eagle lake, mason city municipal airport, elm lake, ventura, kanawha, klemme, latimer, thornton, coulter, meservey and crystal lake. This includes interstate 35 between mile markers 164 and 200.
5/28/2018 5:08 PM CDT Damage to farm building... part of roof removed. time estimated from radar. via social medi in franklin county IA, 3.8 miles N of Thornton, IA
5/28/2018 5:03 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 5/28/2018 5:09 PM CDT At 503 pm cdt, a severe thunderstorm was located near belmond, or 13 miles northeast of clarion, moving north at 20 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.
7/19/2017 4:56 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 7/19/2017 5:00 PM CDT At 455 pm cdt, severe thunderstorms were located along a line extending from near st. ansgar to near nora springs to 9 miles south of clear lake, moving southeast at 60 mph (radar indicated. these storms have a history of producing 60 to 70 mph winds and wind damage). Hazards include 70 mph wind gusts and penny size hail. Expect considerable tree damage. damage is likely to mobile homes, roofs, and outbuildings. locations impacted include, mason city, northwood, nora springs, manly, rockwell, mason city municipal airport, clear lake, ventura, thornton, plymouth, fertile, kensett, meservey, grafton, hanlontown, swaledale, rock falls, dougherty, burchinal and portland. This includes interstate 35 between mile markers 178 and 213.
7/19/2017 4:48 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 7/19/2017 4:51 PM CDT At 447 pm cdt, severe thunderstorms were located along a line extending from 7 miles southwest of st. ansgar to mason city to 7 miles southwest of clear lake, moving southeast at 60 mph (trained weather spotters. at 446 pm cdt...a 63 mph wind gust was reported at the mason city airport. other reports of trees and powerlines downed have also been reported). Hazards include 70 mph wind gusts and penny size hail. Expect considerable tree damage. damage is likely to mobile homes, roofs, and outbuildings. locations impacted include, mason city, forest city, garner, northwood, nora springs, manly, rockwell, clear lake, mason city municipal airport, ventura, thornton, plymouth, fertile, kensett, meservey, grafton, hanlontown, joice, swaledale and rock falls. This includes interstate 35 between mile markers 178 and 214.
7/19/2017 4:48 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 7/19/2017 4:53 PM CDT At 447 pm cdt, severe thunderstorms were located along a line extending from 7 miles southwest of st. ansgar to mason city to 7 miles southwest of clear lake, moving southeast at 60 mph (trained weather spotters. at 446 pm cdt...a 63 mph wind gust was reported at the mason city airport. other reports of trees and powerlines downed have also been reported). Hazards include 70 mph wind gusts and penny size hail. Expect considerable tree damage. damage is likely to mobile homes, roofs, and outbuildings. locations impacted include, mason city, forest city, garner, northwood, nora springs, manly, rockwell, clear lake, mason city municipal airport, ventura, thornton, plymouth, fertile, kensett, meservey, grafton, hanlontown, joice, swaledale and rock falls. This includes interstate 35 between mile markers 178 and 214.
7/19/2017 4:38 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 7/19/2017 4:41 PM CDT At 436 pm cdt, severe thunderstorms were located along a line extending from near northwood to near mason city municipal airport to near eagle lake, moving southeast at 60 mph (trained weather spotters. at 435 pm...a 66 mph wind gust was reported at the forest city airport. other reports of downed trees and powerlines have occurred over winnebago and hancock counties). Hazards include 70 mph wind gusts and penny size hail. Expect considerable tree damage. damage is likely to mobile homes, roofs, and outbuildings. locations impacted include, mason city, forest city, garner, northwood, lake mills, britt, nora springs, manly, rockwell, emmons, clear lake, eagle lake, mason city municipal airport, rice lake, ventura, klemme, thompson, thornton, plymouth and fertile. This includes interstate 35 between mile markers 178 and 218.
7/19/2017 4:38 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 7/19/2017 4:50 PM CDT At 436 pm cdt, severe thunderstorms were located along a line extending from near northwood to near mason city municipal airport to near eagle lake, moving southeast at 60 mph (trained weather spotters. at 435 pm...a 66 mph wind gust was reported at the forest city airport. other reports of downed trees and powerlines have occurred over winnebago and hancock counties). Hazards include 70 mph wind gusts and penny size hail. Expect considerable tree damage. damage is likely to mobile homes, roofs, and outbuildings. locations impacted include, mason city, forest city, garner, northwood, lake mills, britt, nora springs, manly, rockwell, emmons, clear lake, eagle lake, mason city municipal airport, rice lake, ventura, klemme, thompson, thornton, plymouth and fertile. This includes interstate 35 between mile markers 178 and 218.
7/19/2017 4:34 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 7/19/2017 4:38 PM CDT At 433 pm cdt, severe thunderstorms were located along a line extending from near northwood to 7 miles east of forest city to eagle lake, moving southeast at 50 mph (radar indicated. at 415pm cdt...trained weather spotters reported a large tree uprooted in thompson). Hazards include 70 mph wind gusts and penny size hail. Expect considerable tree damage. damage is likely to mobile homes, roofs, and outbuildings. locations impacted include, mason city, forest city, garner, northwood, lake mills, britt, nora springs, manly, rockwell, emmons, clear lake, eagle lake, mason city municipal airport, rice lake, ventura, klemme, thompson, thornton, plymouth and fertile. This includes interstate 35 between mile markers 178 and 218.
7/19/2017 4:19 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 7/19/2017 4:23 PM CDT At 419 pm cdt, severe thunderstorms were located along a line extending from near mansfield to 7 miles northwest of forest city to 6 miles east of union slogh, moving southeast at 55 mph (radar indicated). Hazards include 60 mph wind gusts and penny size hail. expect damage to roofs, siding, and trees
7/10/2017 1:58 AM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 7/10/2017 2:03 AM CDT At 157 am cdt, a severe thunderstorm was located 9 miles northeast of belmond, or 14 miles southeast of garner, moving southeast at 45 mph (radar indicated). 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, belmond, sheffield, elm lake, kanawha, klemme, latimer, thornton, meservey, alexander, swaledale, rowan, goodell, chapin and belmond municipal airport. This includes interstate 35 between mile markers 168 and 187.
7/10/2017 1:42 AM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 7/10/2017 1:45 AM CDT At 142 am cdt, a severe thunderstorm was located 8 miles southeast of britt, or 8 miles southwest of garner, moving southeast at 45 mph (radar indicated). 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, garner, belmond, britt, sheffield, eagle lake, elm lake, clear lake, ventura, kanawha, klemme, latimer, thornton, meservey, alexander, swaledale, rowan, goodell, duncan, chapin and miller. This includes interstate 35 between mile markers 168 and 186.
7/10/2017 1:28 AM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 7/10/2017 1:32 AM CDT At 128 am cdt, a severe thunderstorm was located over britt, or 11 miles west of garner, moving southeast at 45 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.
6/22/2017 8:22 PM CDT At 822 pm cdt, a severe thunderstorm was located near sheffield, or 11 miles northwest of hampton, moving east at 25 mph (radar indicated). Hazards include quarter size hail. damage to vehicles is expected
6/22/2017 8:09 PM CDT The severe thunderstorm warning for southeastern hancock and southwestern cerro gordo counties will expire at 815 pm cdt, the storm which prompted the warning has weakened slightly below severe limits, and has exited the warned area. therefore, the warning will be allowed to expire.
6/22/2017 7:52 PM CDT At 752 pm cdt, a severe thunderstorm was located 7 miles northeast of belmond, or 10 miles south of garner, moving east at 30 mph (radar indicated). Hazards include quarter size hail. Damage to vehicles is expected. locations impacted include, klemme, thornton and swaledale. This includes interstate 35 between mile markers 180 and 189.
6/22/2017 7:41 PM CDT At 741 pm cdt, a severe thunderstorm was located 7 miles south of garner, moving east at 25 mph (radar indicated). Hazards include golf ball size hail. People and animals outdoors will be injured. expect damage to roofs, siding, windows, and vehicles. locations impacted include, clear lake, klemme, thornton, swaledale and clear lake state park. This includes interstate 35 between mile markers 180 and 193.
6/22/2017 7:30 PM CDT At 730 pm cdt, a severe thunderstorm was located 8 miles south of britt, or 10 miles southwest of garner, moving east at 25 mph (radar indicated). Hazards include golf ball size hail. People and animals outdoors will be injured. Expect damage to roofs, siding, windows, and vehicles.
5/17/2017 6:03 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 5/17/2017 6:07 PM CDT At 603 pm cdt, severe thunderstorms were located along a line extending from 8 miles west of britt to 6 miles southwest of clear lake to near rockford, moving northwest at 65 mph (radar indicated). Hazards include 60 mph wind gusts. Expect damage to roofs, siding, and trees. locations impacted include, hampton, sheffield, rockwell, latimer, klemme, thornton, meservey, alexander, geneva, swaledale, goodell, hansell, chapin, dougherty, beeds lake state park, hampton municipal airport and belmond municipal airport. this includes interstate 35 between mile markers 168 and 185. A tornado watch remains in effect until 700 pm cdt for north central iowa.
5/17/2017 5:38 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 5/17/2017 5:42 PM CDT At 537 pm cdt, severe thunderstorms were located along a line extending from 12 miles south of britt to 10 miles east of belmond to near ackley, moving northeast at 55 mph (radar indicated). Hazards include 60 mph wind gusts. Expect damage to roofs, siding, and trees. locations impacted include, hampton, clarion, belmond, sheffield, rockwell, elm lake, kanawha, goldfield, dows, klemme, latimer, thornton, corwith, coulter, meservey, alexander, geneva, swaledale, rowan and goodell. this includes interstate 35 between mile markers 154 and 185. A tornado watch remains in effect until 700 pm cdt for north central iowa.
5/17/2017 5:16 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 5/17/2017 5:23 PM CDT At 516 pm cdt, severe thunderstorms were located along a line extending from 7 miles east of dakota city to near big wall lake to 6 miles northwest of eldora, moving northeast at 40 mph (radar indicated). Hazards include 60 mph wind gusts. expect damage to roofs, siding, and trees
5/16/2017 10:15 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 5/16/2017 10:20 PM CDT At 1014 pm cdt, severe thunderstorms were located along a line extending from 7 miles north of mason city municipal airport to near mason city to near hampton, moving northeast at 40 mph (radar indicated). Hazards include 60 mph wind gusts and penny size hail. expect damage to roofs, siding, and trees
5/16/2017 10:03 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 5/16/2017 10:06 PM CDT At 1002 pm cdt, a severe thunderstorm was located over clear lake, or 8 miles east of garner, moving northeast at 50 mph (trained weather spotters). Hazards include 70 mph wind gusts and penny size hail. Expect considerable tree damage. damage is likely to mobile homes, roofs, and outbuildings. locations impacted include, garner, belmond, britt, elm lake, eagle lake, clear lake, ventura, kanawha, klemme, thornton, meservey, alexander, rowan, goodell, duncan, miller, galt, belmond municipal airport and eagle lake state park. This includes interstate 35 between mile markers 174 and 181.
5/16/2017 9:49 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 5/16/2017 9:54 PM CDT At 949 pm cdt, severe thunderstorms were located along a line extending from near eagle lake to 8 miles southeast of garner to 7 miles west of hampton, moving northeast at 55 mph (trained weather spotters). Hazards include 70 mph wind gusts and penny size hail. Expect considerable tree damage. Damage is likely to mobile homes, roofs, and outbuildings.
5/16/2017 9:43 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 5/16/2017 9:47 PM CDT At 942 pm cdt, a severe thunderstorm was located near belmond, or 13 miles north of clarion, moving northeast at 50 mph (trained weather spotters). Hazards include 70 mph wind gusts and penny size hail. Expect considerable tree damage. damage is likely to mobile homes, roofs, and outbuildings. locations impacted include, garner, clarion, eagle grove, belmond, britt, big wall lake, elm lake, eagle lake, clear lake, ventura, kanawha, goldfield, klemme, thornton, corwith, meservey, alexander, woolstock, rowan and goodell. This includes interstate 35 between mile markers 175 and 181.
5/16/2017 9:26 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 5/16/2017 9:31 PM CDT At 925 pm cdt, a severe thunderstorm was located 7 miles north of eagle grove, or 8 miles west of clarion, moving northeast at 50 mph (trained weather spotters). Hazards include 70 mph wind gusts and penny size hail. Expect considerable tree damage. Damage is likely to mobile homes, roofs, and outbuildings.
5/15/2017 6:27 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 5/15/2017 6:33 PM CDT At 627 pm cdt, severe thunderstorms were located along a line extending from near greene to 9 miles east of big wall lake, moving east at 30 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. locations impacted include, hampton, sheffield, greene, rockwell, dumont, dows, latimer, thornton, coulter, meservey, alexander, bradford, hansell, chapin, aredale, dougherty, beeds lake state park and hampton municipal airport. This includes interstate 35 between mile markers 159 and 181.
5/15/2017 5:58 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 5/15/2017 6:01 PM CDT At 558 pm cdt, severe thunderstorms were located along a line extending from 6 miles southwest of marble rock to near big wall lake, 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.
5/15/2017 5:44 PM CDT Quarter sized hail reported 1.7 miles SW of Thornton, IA
5/15/2017 5:37 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 5/15/2017 5:42 PM CDT At 536 pm cdt, severe thunderstorms were located along a line extending from near rockford to eagle grove, moving east at 50 mph. at 528 pm cdt a trained spotter reported golf ball sized hail in goldfield (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, hampton, clarion, eagle grove, belmond, sheffield, rockwell, big wall lake, elm lake, goldfield, dows, latimer, thornton, coulter, meservey, renwick, thor, alexander, swaledale, rowan and goodell. This includes interstate 35 between mile markers 151 and 188.
5/15/2017 5:26 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 5/15/2017 5:30 PM CDT At 524 pm cdt, a line of severe thunderstorms was located from near eagle grove to around mason city, moving east at 25 mph. most of the line is producing wind gusts to near 60 mph and quarter sized hail. however, a particularly strong thunderstorm moving from southeastern humboldt into wright county is producing hail up to the size of hen eggs (radar indicated). 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, mason city, hampton, clarion, dakota city, humboldt, eagle grove, belmond, sheffield, rockwell, big wall lake, elm lake, mason city municipal airport, kanawha, goldfield, dows, latimer, thornton, coulter, meservey and renwick. This includes interstate 35 between mile markers 151 and 194.
5/15/2017 5:19 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 5/15/2017 5:23 PM CDT At 518 pm cdt, severe thunderstorms were located along a line extending from near mason city to near eagle grove, moving east at 50 mph. this warning replaces severe thunderstorm warnings that were previously in effect (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.
5/15/2017 5:14 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 5/15/2017 5:17 PM CDT At 513 pm cdt, a severe thunderstorm was located near clear lake, or 8 miles southeast of garner, 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, clear lake, ventura, klemme, thornton, swaledale, goodell, clear lake state park and mcintosh woods state park. This includes interstate 35 between mile markers 180 and 194.
5/15/2017 4:58 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 5/15/2017 5:05 PM CDT At 458 pm cdt, a severe thunderstorm was located 7 miles southwest of garner, 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.
3/6/2017 6:31 PM CST Radar Image for Severe Thunderstorms near Thornton, IA at 3/6/2017 6:35 PM CST At 630 pm cst, a severe thunderstorm was located near sheffield, or 13 miles north of hampton, moving northeast at 65 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.
9/10/2015 7:30 AM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 9/10/2015 7:33 AM CDT At 729 am cdt, a severe thunderstorm was located 4 miles east of garner, moving east at 35 mph (radar indicated). Hazards include quarter size hail. damage to vehicles is expected
9/6/2015 7:33 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 9/6/2015 7:37 PM CDT At 732 pm cdt, a severe thunderstorm was located 5 miles northwest of rockwell, or 7 miles south of mason city, moving east at 40 mph (radar indicated). Hazards include quarter size hail. Damage to vehicles is expected. this severe storm will be near, nora springs around 755 pm cdt. other locations impacted by this severe thunderstorm include swaledale, clear lake state park, rock falls, portland, burchinal and thornton. This includes interstate 35 between mile markers 180 and 193.
9/6/2015 7:19 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 9/6/2015 7:25 PM CDT At 718 pm cdt, a severe thunderstorm was located 6 miles south of clear lake, or 12 miles southeast of garner, moving east at 40 mph (radar indicated). Hazards include quarter size hail. Damage to vehicles is expected. this severe thunderstorm will be near, mason city municipal airport around 730 pm cdt. rockwell around 735 pm cdt. mason city around 740 pm cdt. nora springs around 750 pm cdt. other locations impacted by this severe thunderstorm include clear lake state park, burchinal, swaledale, thornton, rock falls, portland and plymouth. This includes interstate 35 between mile markers 180 and 194.
5/3/2015 8:37 PM CDT The severe thunderstorm warning for northwestern franklin and southeastern cerro gordo counties will expire at 845 pm cdt, the storm which prompted the warning has weakened below severe limits, and no longer pose an immediate threat to life or property. therefore the warning will be allowed to expire.
5/3/2015 8:32 PM CDT At 832 pm cdt, a severe thunderstorm was located 6 miles northeast of hampton, moving southeast 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, mason city, nora springs, sheffield, rockwell, latimer, thornton, meservey, alexander, swaledale, chapin, dougherty and portland. this includes interstate 35 between mile markers 167 and 185. 1. 00in.
5/3/2015 7:59 PM CDT At 758 pm cdt, a severe thunderstorm was located 7 miles northeast of belmond, or 13 miles southeast of garner, moving southeast 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.
10/4/2013 6:14 PM CDT Quarter sized hail reported 0.3 miles NNE of Thornton, IA
7/25/2012 8:30 PM CDT Lots of trees down including one possibly on fire. some broken windows too. from kimt tv viewer. time estimate in cerro gordo county IA, 0.3 miles NNE of Thornton, IA