Hail Map for Thornton, IA

The Thornton, IA area has had 3 reports of on-the-ground hail by trained spotters, and has been under severe weather warnings 10 times during the past 12 months. Doppler radar has detected hail at or near Thornton, IA on 56 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
5/24/2024 6:00 AM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 5/24/2024 6:55 AM CDT the severe thunderstorm warning has been cancelled and is no longer in effect
5/24/2024 6:00 AM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 5/24/2024 6:55 AM CDT At 559 am cdt, severe thunderstorms were located along a line extending from near alden to near burchinal, moving east at 50 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, mason city, northwood, lake mills, manly, sheffield, rockwell, emmons, clear lake, mason city municipal airport, rice lake, ventura, thornton, plymouth, fertile, kensett, grafton, hanlontown, joice, swaledale, and rock falls. This includes interstate 35 between mile markers 177 and 218.
5/24/2024 5:47 AM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 5/24/2024 6:21 AM CDT At 547 am cdt, severe thunderstorms were located along a line extending from near bricelyn to 4 miles northwest of thornton, 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, mason city, forest city, garner, northwood, belmond, lake mills, manly, sheffield, 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 175 and 218.
5/24/2024 5:42 AM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 5/24/2024 6:32 AM CDT At 542 am cdt, severe thunderstorms were located along a line extending from near bricelyn to near meservey, 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, mason city, forest city, garner, northwood, belmond, lake mills, manly, sheffield, 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 175 and 218.
5/24/2024 5:42 AM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 5/24/2024 6:31 AM CDT the severe thunderstorm warning has been cancelled and is no longer in effect
5/24/2024 5:19 AM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 5/24/2024 6:40 AM CDT Svrdmx the national weather service in des moines has issued a * severe thunderstorm warning for, worth county in north central iowa, northern wright county in north central iowa, northern franklin county in north central iowa, kossuth county in north central iowa, northeastern humboldt county in north central iowa, hancock county in north central iowa, cerro gordo county in north central iowa, winnebago county in north central iowa, * until 615 am cdt. * at 519 am cdt, severe thunderstorms were located along a line extending from 4 miles west of elmore to near kanawha, moving east at 50 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.
5/21/2024 4:15 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 5/21/2024 4:29 PM CDT Svrdmx the national weather service in des moines has issued a * severe thunderstorm warning for, southwestern worth county in north central iowa, wright county in north central iowa, northwestern franklin county in north central iowa, hancock county in north central iowa, western cerro gordo county in north central iowa, * until 500 pm cdt. * at 415 pm cdt, a severe thunderstorm was located near kanawha, or 11 miles north of clarion, 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.
8/11/2023 9:22 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 8/11/2023 9:28 PM CDT At 921 pm cdt, a severe thunderstorm was located over thornton, or 13 miles northwest of hampton, moving southeast at 45 mph (public). Hazards include tennis ball size hail. People and animals outdoors will be injured. expect damage to roofs, siding, windows, and vehicles. locations impacted include, sheffield, rockwell, thornton, meservey, swaledale, hansell, chapin, and dougherty. this includes interstate 35 between mile markers 174 and 183. thunderstorm damage threat, considerable hail threat, observed max hail size, 2. 50 in wind threat, radar indicated max wind gust, <50 mph.
8/11/2023 9:21 PM CDT Quarter sized hail reported 0.5 miles SW of Thornton, IA
8/11/2023 9:11 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 8/11/2023 9:15 PM CDT At 911 pm cdt, a severe thunderstorm was located 5 miles north of meservey, or 9 miles southeast of garner, moving southeast at 45 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, sheffield, rockwell, klemme, thornton, meservey, swaledale, hansell, chapin, and dougherty. this includes interstate 35 between mile markers 174 and 187. thunderstorm damage threat, considerable hail threat, radar indicated max hail size, 1. 75 in wind threat, radar indicated max wind gust, <50 mph.
8/11/2023 9:02 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 8/11/2023 9:12 PM CDT At 902 pm cdt, a severe thunderstorm was located over klemme, or near garner, moving southeast at 45 mph (radar indicated). Hazards include quarter size hail. damage to vehicles is expected
7/5/2022 7:35 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 7/5/2022 7:51 PM CDT At 734 pm cdt, severe thunderstorms were located along a line extending from near hampton to iowa falls to near jewell junction to near boone, moving east at 45 mph (radar indicated). Hazards include 60 mph wind gusts. Expect damage to roofs, siding, and trees. locations impacted include, webster city, iowa falls, hampton, clarion, eldora, belmond, ackley, jewell junction, sheffield, rockwell, elm lake, big wall lake, hubbard, alden, stratford, radcliffe, dows, ellsworth, latimer and klemme. hail threat, radar indicated max hail size, <. 75 in wind threat, radar indicated max wind gust, 60 mph.
7/5/2022 7:13 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 7/6/2022 2:11 AM CDT At 713 pm cdt, severe thunderstorms were located along a line extending from lyle to 7 miles southwest of st. ansgar to 10 miles west of rockwell, moving east at 50 mph (radar indicated). Hazards include 60 mph wind gusts. Expect damage to roofs, siding, and trees. locations impacted include, mason city, garner, northwood, lake mills, manly, rockwell, emmons, clear lake, mason city municipal airport, rice lake, ventura, klemme, thornton, plymouth, fertile, kensett, meservey, grafton, hanlontown and joice. hail threat, radar indicated max hail size, <. 75 in wind threat, radar indicated max wind gust, 60 mph.
7/5/2022 6:56 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 7/5/2022 7:26 PM CDT At 656 pm cdt, severe thunderstorms were located along a line extending from near belmond to 7 miles west of big wall lake to 11 miles southeast of fort dodge to near gowrie, moving east at 45 mph (radar indicated). Hazards include 60 mph wind gusts. expect damage to roofs, siding, and trees
7/5/2022 6:39 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 7/6/2022 2:14 AM CDT At 639 pm cdt, severe thunderstorms were located along a line extending from lake mills to near forest city to 14 miles northwest of clarion, moving east at 50 mph (radar indicated). Hazards include 60 mph wind gusts. expect damage to roofs, siding, and trees
6/13/2022 8:37 AM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 6/13/2022 8:44 AM CDT At 837 am cdt, a severe thunderstorm was located over garner, moving northeast at 35 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 thunderstorm will remain over mainly rural areas of north central franklin, northeastern hancock and southwestern cerro gordo counties, including the following locations, thornton and duncan. thunderstorm damage threat, considerable hail threat, radar indicated max hail size, 1. 75 in wind threat, radar indicated max wind gust, 60 mph.
6/13/2022 8:26 AM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 6/13/2022 8:32 AM CDT At 825 am cdt, a severe thunderstorm was located near garner, moving northeast at 40 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 thunderstorm will be near, garner and hayfield around 835 am cdt. miller around 840 am cdt. ventura, mcintosh woods state park and clear lake state park around 845 am cdt. other locations in the path of this severe thunderstorm include clear lake, pilot knob state park, mason city municipal airport, fertile, hanlontown, manly and kensett. this includes interstate 35 between mile markers 178 and 218. thunderstorm damage threat, considerable hail threat, radar indicated max hail size, 1. 75 in wind threat, radar indicated max wind gust, 60 mph.
6/13/2022 8:17 AM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 6/13/2022 8:23 AM CDT At 817 am cdt, a severe thunderstorm was located 9 miles south of britt, or 11 miles southwest of garner, moving northeast at 40 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, goodell around 820 am cdt. other locations in the path of this severe thunderstorm include eagle lake, klemme, duncan and garner. thunderstorm damage threat, considerable hail threat, radar indicated max hail size, 1. 75 in wind threat, radar indicated max wind gust, 60 mph.
6/13/2022 8:03 AM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 6/13/2022 8:08 AM CDT At 803 am cdt, a severe thunderstorm was located 12 miles northwest of clarion, 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. this severe thunderstorm will be near, kanawha around 820 am cdt. other locations in the path of this severe thunderstorm include goodell, eagle lake, klemme, duncan, eagle lake state park and garner. this includes interstate 35 between mile markers 177 and 181. hail threat, radar indicated max hail size, 1. 00 in wind threat, radar indicated max wind gust, 60 mph.
4/23/2022 6:49 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 4/23/2022 7:09 PM CDT At 649 pm cdt, severe thunderstorms were located along a line extending from garner to big wall lake to 7 miles west of jewell junction, moving northeast at 50 mph (radar indicated). Hazards include 60 mph wind gusts. Expect damage to roofs, siding, and trees. severe thunderstorms will be near, ventura, dows, rowan and mcintosh woods state park around 700 pm cdt. clear lake, blairsburg, alexander and clear lake state park around 705 pm cdt. other locations in the path of these severe thunderstorms include mason city municipal airport, latimer, williams, coulter, beeds lake state park, hampton municipal airport, hampton, alden, plymouth, chapin, popejoy, iowa falls municipal airport, iowa falls, sheffield, hansell, rockwell, geneva, bradford and dougherty. This includes interstate 35 between mile markers 138 and 202.
4/12/2022 10:51 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 4/13/2022 1:36 AM CDT The severe thunderstorm warning for eastern wright, franklin, southeastern hancock and southern cerro gordo counties will expire at 1100 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 gusty winds are still possible with these thunderstorms. a tornado watch remains in effect until midnight cdt for north central iowa.
4/12/2022 10:36 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 4/13/2022 2:02 AM CDT At 1035 pm cdt, severe thunderstorms were located along a line extending from near mason city municipal airport to near big wall lake, moving east at 50 mph (radar indicated). Hazards include 60 mph wind gusts. Expect damage to roofs, siding, and trees. locations impacted include, hampton. hail threat, radar indicated max hail size, <. 75 in wind threat, radar indicated max wind gust, 60 mph.
4/12/2022 10:13 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 4/13/2022 2:40 AM CDT At 1013 pm cdt, severe thunderstorms were located along a line extending from near garner to near fort dodge, moving east at 50 mph (radar indicated). Hazards include 60 mph wind gusts. Expect damage to roofs, siding, and trees. severe thunderstorms will be near, webster city around 1030 pm cdt. other locations in the path of these severe thunderstorms include big wall lake. this includes interstate 35 between mile markers 149 and 190. hail threat, radar indicated max hail size, <. 75 in wind threat, radar indicated max wind gust, 60 mph.
4/12/2022 9:22 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 4/12/2022 10:08 PM CDT At 922 pm cdt, a severe thunderstorm was located over clear lake, or 10 miles east of garner, 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. this severe thunderstorm will be near, mason city municipal airport around 930 pm cdt. mason city around 935 pm cdt. manly around 940 pm cdt. this includes interstate 35 between mile markers 181 and 218. hail threat, radar indicated max hail size, 1. 00 in wind threat, radar indicated max wind gust, 60 mph.
4/12/2022 8:55 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 4/12/2022 9:33 PM CDT At 855 pm cdt, a severe thunderstorm was located over clear lake, or 8 miles east of garner, moving northeast at 50 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, mason city municipal airport around 905 pm cdt. mason city around 910 pm cdt. this includes interstate 35 between mile markers 179 and 204. hail threat, radar indicated max hail size, 1. 00 in wind threat, radar indicated max wind gust, 60 mph.
4/12/2022 8:45 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 4/12/2022 9:10 PM CDT At 845 pm cdt, a severe thunderstorm capable of producing a tornado was located over mason city, moving east at 30 mph (weather spotters reported a funnel cloud southwest of mason city ). Hazards include tornado and golf ball 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, nora springs.
4/12/2022 8:17 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 4/12/2022 8:57 PM CDT At 817 pm cdt, a severe thunderstorm was located 9 miles south of britt, or 14 miles southwest of garner, 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, eagle lake around 830 pm cdt. this includes interstate 35 near mile marker 179. hail threat, radar indicated max hail size, 1. 00 in wind threat, radar indicated max wind gust, 60 mph.
4/12/2022 8:15 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 4/12/2022 9:37 PM CDT At 815 pm cdt, a severe thunderstorm capable of producing a tornado was located near clear lake, or 8 miles southeast of garner, moving northeast at 35 mph (radar indicated rotation). Hazards include tornado and golf ball 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, clear lake around 825 pm cdt. Other locations in the path of this tornadic thunderstorm include mason city municipal airport, mason city and nora springs.
4/12/2022 8:06 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 4/12/2022 10:09 PM CDT At 806 pm cdt, a severe thunderstorm capable of producing a tornado was located near garner, moving east at 40 mph (radar indicated rotation). Hazards include tornado and golf ball 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, clear lake around 820 pm cdt. mason city municipal airport around 825 pm cdt. other locations in the path of this tornadic thunderstorm include mason city and nora springs. This includes interstate 35 between mile markers 178 and 204.
4/12/2022 8:03 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 4/12/2022 10:10 PM CDT At 803 pm cdt, a severe thunderstorm capable of producing a tornado was located near garner, moving northeast at 25 mph (radar indicated rotation). Hazards include tornado and golf ball 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, clear lake.
4/12/2022 7:38 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 4/13/2022 4:33 AM CDT At 737 pm cdt, a confirmed tornado was located 10 miles south of britt, or 13 miles southwest of garner, moving east at 55 mph (weather spotters confirmed tornado). Hazards include damaging tornado and golf ball 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, garner around 750 pm cdt. other locations in the path of this tornadic thunderstorm include clear lake. This includes interstate 35 between mile markers 179 and 189.
4/12/2022 7:32 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 4/13/2022 4:35 AM CDT At 731 pm cdt, a severe thunderstorm was located 12 miles south of britt, or 15 miles northwest of clarion, moving northeast at 30 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.
12/15/2021 6:30 PM CST Radar Image for Severe Thunderstorms near Thornton, IA at 12/29/2021 10:20 AM CST At 629 pm cst, severe thunderstorms were located along a line extending from near easton to 9 miles north of grinnell, moving northeast at 110 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, toledo and tama around 635 pm cst. dysart around 645 pm cst. this includes the following highways, interstate 35 between mile markers 178 and 218. interstate 380 between mile markers 56 and 73. thunderstorm damage threat, considerable hail threat, radar indicated max hail size, <. 75 in wind threat, radar indicated max wind gust, 70 mph.
8/27/2021 5:17 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 1/6/2022 11:19 AM CDT At 516 pm cdt, a severe thunderstorm was located 7 miles west of rockwell, or 12 miles southwest of mason city, moving northeast 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. locations impacted include, rockwell, thornton, meservey and swaledale. hail threat, radar indicated max hail size, 1. 00 in wind threat, radar indicated max wind gust, 60 mph.
8/27/2021 5:12 PM CDT Trees down. not all trees were completely healthy... some were. time estimated via rada in cerro gordo county IA, 2.4 miles W of Thornton, IA
8/27/2021 4:58 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 12/25/2021 9:36 AM CDT At 458 pm cdt, a severe thunderstorm was located 10 miles northeast of belmond, or 12 miles southeast of garner, 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.
8/24/2021 1:23 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 1/6/2022 4:43 PM CDT At 122 pm cdt, a severe thunderstorm was located near hampton, moving east at 35 mph (hampton awos reported a 64 mph wind gust). 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, hampton, sheffield, rockwell, latimer, thornton, coulter, meservey, alexander, swaledale, hansell, chapin, dougherty, beeds lake state park and hampton municipal airport. thunderstorm damage threat, considerable hail threat, radar indicated max hail size, 1. 75 in wind threat, observed max wind gust, 60 mph.
8/24/2021 1:14 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 1/6/2022 4:43 PM CDT At 113 pm cdt, a severe thunderstorm was located near hampton, moving east at 40 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. locations impacted include, hampton, sheffield, rockwell, latimer, thornton, coulter, meservey, alexander, swaledale, hansell, chapin, dougherty, beeds lake state park and hampton municipal airport. thunderstorm damage threat, considerable hail threat, radar indicated max hail size, 1. 75 in wind threat, radar indicated max wind gust, 60 mph.
8/24/2021 12:56 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 12/28/2021 5:18 AM CDT At 1256 pm cdt, a severe thunderstorm was located near rockwell, or 11 miles south of mason city, 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. locations impacted include, mason city, garner, britt, rockwell, mason city municipal airport, clear lake, eagle lake, ventura, klemme, thornton, swaledale, rock falls, duncan, miller, dougherty, hayfield, burchinal, portland, mcintosh woods state park and clear lake state park. hail threat, radar indicated max hail size, 1. 00 in wind threat, radar indicated max wind gust, 60 mph.
8/24/2021 12:51 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 12/28/2021 5:17 AM CDT At 1251 pm cdt, a severe thunderstorm was located 7 miles northeast of belmond, or 15 miles southeast of garner, 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.
8/24/2021 12:26 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 12/28/2021 5:15 AM CDT At 1226 pm cdt, a severe thunderstorm was located near garner, moving east 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.
7/14/2021 9:06 AM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 1/10/2022 2:12 AM CDT At 905 am cdt, severe thunderstorms were located along a line extending from near rockwell to near aplington, 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, aplington and parkersburg. This includes interstate 35 between mile markers 172 and 193.
7/14/2021 8:39 AM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 1/10/2022 2:22 AM CDT At 838 am cdt, severe thunderstorms were located along a line extending from 9 miles south of clear lake to near iowa falls, moving east at 25 mph (radar indicated). Hazards include 60 mph wind gusts and nickel size hail. expect damage to roofs, siding, and trees
10/12/2020 2:39 AM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 10/12/2020 2:42 AM CDT At 238 am cdt, severe thunderstorms were located along a line extending from near lake mills to 8 miles west of rockwell, moving east at 45 mph (radar indicated). Hazards include 60 mph wind gusts. Expect damage to roofs, siding, and trees. Locations impacted include, mason city, forest city, garner, northwood, lake mills, britt, manly, rockwell, emmons, clear lake, eagle lake, mason city municipal airport, rice lake, ventura, kanawha, klemme, thompson, thornton, plymouth and fertile.
10/12/2020 2:11 AM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 10/12/2020 2:14 AM CDT At 210 am cdt, severe thunderstorms were located along a line extending from near bricelyn to 10 miles west of belmond, moving east at 45 mph (asos reports at mason city airport). Hazards include 65 mph wind gusts. expect damage to roofs, siding, and trees
9/6/2020 3:40 AM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 2/1/2022 10:10 AM CDT At 339 am cdt, severe thunderstorms were located along a line extending from near mason city to 8 miles northwest of clarion, 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.
7/11/2020 3:03 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 7/11/2020 3:06 PM CDT At 303 pm cdt, a severe thunderstorm was located near sheffield, or 12 miles north of hampton, moving southeast at 20 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.
7/9/2020 11:33 AM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 7/9/2020 11:36 AM CDT At 1132 am cdt, severe thunderstorms were located along a line extending from near clear lake to near rockwell to 8 miles southwest of marble rock, moving north at 25 mph (radar indicated). Hazards include 60 mph wind gusts. Expect damage to roofs, siding, and trees. locations impacted include, mason city, nora springs, manly, sheffield, rockwell, mason city municipal airport, clear lake, thornton, plymouth, kensett, grafton, swaledale, rock falls, hansell, chapin, dougherty, burchinal, portland and clear lake state park. This includes interstate 35 between mile markers 181 and 198.
7/9/2020 11:11 AM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 7/9/2020 11:14 AM CDT At 1111 am cdt, severe thunderstorms were located along a line extending from 8 miles northeast of belmond to near sheffield to 7 miles east of hampton, moving north at 25 mph (radar indicated). Hazards include 60 mph wind gusts. expect damage to roofs, siding, and trees
3/28/2020 4:35 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 3/28/2020 4:38 PM CDT At 435 pm cdt, a severe thunderstorm was located near elm lake, or near clarion, moving north at 50 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 storm will be near, belmond around 445 pm cdt. other locations impacted by this severe thunderstorm include meservey, thornton, belmond municipal airport and alexander. This includes interstate 35 between mile markers 180 and 181.
3/28/2020 4:08 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 3/28/2020 4:11 PM CDT At 408 pm cdt, a severe thunderstorm was located near webster city, 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, big wall lake around 425 pm cdt. belmond around 440 pm cdt. other locations impacted by this severe thunderstorm include rowan, meservey, coulter, thornton, blairsburg, alexander, galt, latimer, chapin and dows. This includes interstate 35 between mile markers 148 and 181.
8/5/2019 8:11 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 8/5/2019 8:14 PM CDT At 811 pm cdt, a severe thunderstorm was located 9 miles west of sheffield, or 13 miles northwest of hampton, moving southeast at 35 mph (radar indicated). Hazards include 60 mph wind gusts. a trained weather spotter near meservey estimated wind gusts of 50 mph around 8:07 pm. Expect damage to roofs, siding, and trees. locations impacted include, hampton, belmond, sheffield, rockwell, latimer, thornton, coulter, meservey, alexander, swaledale, goodell, bradford, chapin, beeds lake state park, hampton municipal airport and belmond municipal airport. This includes interstate 35 between mile markers 165 and 184.
8/5/2019 7:56 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 8/5/2019 7:59 PM CDT At 755 pm cdt, a severe thunderstorm was located 7 miles northeast of belmond, or 11 miles south of garner, moving southeast at 35 mph (radar indicated). Hazards include 60 mph wind gusts. expect damage to roofs, siding, and trees
7/20/2019 11:28 AM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 7/20/2019 11:31 AM CDT At 1127 am cdt, severe thunderstorms were located along a line extending from st. ansgar to near sheffield, moving east at 60 mph (radar indicated. at 1120am 61 mph winds were reported at the mason city airport). Hazards include 60 mph wind gusts. Expect damage to roofs, siding, and trees. locations impacted include, mason city, northwood, manly, rockwell, emmons, clear lake, mason city municipal airport, rice lake, ventura, thornton, plymouth, fertile, kensett, meservey, grafton, hanlontown, joice, swaledale, rock falls and dougherty. This includes interstate 35 between mile markers 178 and 218.
7/20/2019 11:04 AM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 7/20/2019 11:07 AM CDT At 1104 am cdt, severe thunderstorms were located along a line extending from near glenville to 8 miles northwest of belmond, moving east at 85 mph (radar indicated. at around 1100am tree damage and 60 mph winds were reported in forest city). Hazards include 60 mph wind gusts. expect damage to roofs, siding, and trees
6/27/2019 12:41 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 6/27/2019 12:44 PM CDT The severe thunderstorm warning for northern hardin, eastern wright, franklin, southeastern hancock, western grundy, western butler, southern cerro gordo and northeastern hamilton counties will expire at 1245 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 small hail and gusty winds are still possible with these thunderstorms. a severe thunderstorm watch remains in effect until 700 pm cdt for central and north central iowa.
6/27/2019 12:24 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 6/27/2019 12:27 PM CDT At 1223 pm cdt, severe thunderstorms were located along a line extending from near rockwell to 7 miles southeast of big wall lake, 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, iowa falls, hampton, garner, clarion, eldora, belmond, ackley, sheffield, greene, aplington, rockwell, elm lake, big wall lake, alden, wellsburg, dumont, dows, latimer, klemme and thornton. This includes interstate 35 between mile markers 147 and 190.
6/27/2019 12:04 PM CDT Radar Image for Severe Thunderstorms near Thornton, IA at 6/27/2019 12:07 PM CDT At 1203 pm cdt, a severe thunderstorm was located 8 miles east of belmond, or 13 miles northwest of hampton, moving east at 50 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.
5/29/2019 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 Radar Image for Severe Thunderstorms near Thornton, IA at 2/18/2022 1:46 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 Radar Image for Severe Thunderstorms near Thornton, IA at 2/18/2022 1:48 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 Radar Image for Severe Thunderstorms near Thornton, IA at 2/18/2022 1:50 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 Radar Image for Severe Thunderstorms near Thornton, IA at 2/18/2022 1:51 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 Radar Image for Severe Thunderstorms near Thornton, IA at 2/18/2022 1:54 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