Walworth County Storm Activity
Wind, hail, and tornado activity from official NOAA sources (NWS & SPC) · Last 180 days · Updated Sep 11, 2026
Walworth County, Wisconsin has recorded tornado activity: official National Weather Service (NWS) and Storm Prediction Center (SPC) records list 5 tornado reports among 53 severe weather events here in the last 180 days, alongside 26 hail reports with hail up to 2" and 22 high-wind reports with gusts up to 100 mph. The most recent recorded storm activity was in August 2026. This page updates daily: every event comes straight from official NOAA data — no estimates, no modeling, just the record.
What the radar showed
Last 30 days in Walworth County
Recent storms — full detail available in the app
Storm activity from the last 30 days is summarized at the county level on this page. Exact locations, radar snapshots, and official warning boundaries for recent events are available with a free account.
See the specifics — free →Storm log — the official record, day by day
Events older than 30 days, as recorded by the National Weather Service and Storm Prediction Center. Excerpts are quoted directly from official warnings and verified reports.
Tuesday, August 11, 2026
2 NWS warnings — hail up to 0.88"
“At 257 AM CDT, Doppler radar was tracking a cluster of strong thunderstorms over Clinton, or 10 miles west of Delavan, moving southeast at 20 mph. Hazard: Wind gusts up to 50 mph and nickel size hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include...”
“At 232 AM CDT, Doppler radar was tracking a cluster of strong thunderstorms along a line extending from Janesville to near Brodhead. Movement was east at 15 mph. Hazard: Wind gusts up to 40 mph and half inch hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include...”
- Hail 0.88" Walworth County NWS severe weather mention
- Hail 0.5" Walworth County NWS severe weather mention
Monday, August 10, 2026
1 NWS warning — hail up to 0.5"
“At 1205 AM CDT, Doppler radar was tracking a strong thunderstorm near Lake Geneva, moving east at 15 mph. Hazard: Wind gusts up to 40 mph and half inch hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include...”
- Hail 0.5" Walworth County NWS severe weather mention
Sunday, August 9, 2026
3 NWS warnings — hail up to 0.88", wind gusts up to 50 mph
“At 1042 AM CDT, Doppler radar was tracking a cluster of strong thunderstorms near Milton, moving east at 40 mph. Hazard: Wind gusts up to 50 mph. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include...”
“At 1054 PM CDT, Doppler radar was tracking a strong thunderstorm near Whitewater, moving east at 15 mph. Hazard: Wind gusts up to 45 to 50 mph and nickel size hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include...”
- Wind 50 mph Walworth County NWS severe weather mention
- Hail 0.88" Walworth County NWS severe weather mention
- Hail 0.88" Walworth County NWS severe weather mention
Saturday, August 8, 2026
2 SPC verified storm reports — hail up to 1.5"
“Report from mPING: Ping Pong Ball (1.50 in.). (MKX)”
- Hail 1.5" 2 W Pell Lake SPC verified report
- Hail 1" 3 SSE Fontana-on-Geneva SPC verified report
Monday, July 27, 2026
1 NWS warning — hail up to 0.75"
“At 1009 AM CDT, Doppler radar was tracking a strong thunderstorm near Palmyra, or 8 miles west of East Troy, moving east at 35 mph. Hazard: Wind gusts up to 40 mph and penny size hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include...”
- Hail 0.75" Walworth County NWS severe weather mention
Friday, July 3, 2026
4 SPC verified storm reports — wind gusts up to 100 mph
“3 FATAL... 2 INJ NWS Storm Survey for Walworth County: Damage from south of Darien through Lake Delavan to Como occurred due to downburst winds and not a tornad (MKX)”
“Multiple large limbs down and a few trees snapped near the top in Lyons. Time estimated from radar. (MKX)”
- Wind 100 mph 2 SE Darien SPC verified report
- Wind 63 mph 1 S Darien SPC verified report
- Wind Unknown 4 WNW Bohners Lake SPC verified report
- Wind Unknown 1 N Sharon SPC verified report
Thursday, July 2, 2026
2 NWS warnings — wind gusts up to 50 mph
“At 1015 PM CDT, Doppler radar was tracking strong thunderstorms along a line extending from near Footville to near Rockton. Movement was east at 45 mph. Hazard: Wind gusts up to 50 mph. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include...”
“At 632 PM CDT, Doppler radar was tracking strong thunderstorms along a line extending from near Hartford to near Johnson Creek to near Jefferson to near Edgerton to near Brodhead. Movement was east at 35 mph. Hazard: Wind gusts up to 50 mph. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include...”
- Wind 50 mph Walworth County NWS severe weather mention
- Wind 50 mph Walworth County NWS severe weather mention
Sunday, June 28, 2026
1 NWS warning — wind gusts up to 50 mph
“Winds of 40 to 50 mph will be possible this afternoon as rain comes to an end across southern Wisconsin. This appears to be a wake low situation where winds can be gusty for up to an hour after the rain comes to an end. Platteville and other weather stations in southwest Wisconsin have gusted to 47 mph already.”
- Wind 50 mph Walworth County NWS severe weather mention
Wednesday, June 24, 2026
2 NWS warnings — hail up to 0.5"
“At 426 PM CDT, Doppler radar was tracking a strong thunderstorm near Clinton, or 8 miles southeast of Janesville, moving southeast at 25 mph. Hazard: Wind gusts of 45 to 55 mph and half inch hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include...”
“At 438 PM CDT, Doppler radar was tracking a strong thunderstorm over Williams Bay, moving southeast at 25 mph. Hazard: Wind gusts up to 50 mph and pea size hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include...”
- Hail 0.5" Walworth County NWS severe weather mention
- Hail 0.25" Walworth County NWS severe weather mention
Thursday, June 11, 2026
1 SPC verified storm report · 1 NWS warning — wind gusts up to 50 mph
“At 1137 AM CDT, Doppler radar was tracking strong thunderstorms along a line extending from near Stoughton to near Candlewick Lake. Movement was northeast at 55 mph. Hazard: Wind gusts up to 50 mph. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include...”
“Large branch down on Hill St in Walworth. Time est from radar. (MKX)”
- Wind 50 mph Walworth County NWS severe weather mention
- Wind Unknown Walworth SPC verified report
Friday, June 5, 2026
1 NWS warning — hail up to 0.25"
“At 1157 PM CDT, Doppler radar was tracking a cluster of strong thunderstorms along a line extending from Muskego to near Whitewater. Movement was east at 35 mph. Hazard: Wind gusts up to 50 mph and pea size hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include...”
- Hail 0.25" Walworth County NWS severe weather mention
Monday, May 18, 2026
2 NWS warnings — hail up to 0.75"
“At 542 AM CDT, Doppler radar was tracking a strong thunderstorm near Clinton, or 8 miles east of Beloit, moving northeast at 50 mph. Hazard: Wind gusts up to 40 mph and penny size hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include...”
“At 610 AM CDT, Doppler radar was tracking a strong thunderstorm near Palmyra, or near East Troy, moving northeast at 55 mph. Hazard: Wind gusts up to 40 mph and half inch hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include...”
- Hail 0.75" Walworth County NWS severe weather mention
- Hail 0.5" Walworth County NWS severe weather mention
Monday, April 27, 2026
2 NWS warnings — wind gusts up to 50 mph
“At 1241 PM CDT, surface weather stations reported gusty winds behind rain showers / weak thunderstorms. Movement of the line of showers was east at 55 mph. Hazard: Wind gusts up to 50 mph. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include...”
“At 1206 PM CDT, surface weather stations traked gusty winds behind rain showers / weak thunderstorms. Movement of the line of showers was east at 55 mph. Hazard: Wind gusts up to 50 mph. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include...”
- Wind 50 mph Walworth County NWS severe weather mention
- Wind 50 mph Walworth County NWS severe weather mention
Friday, April 17, 2026
2 SPC verified storm reports — 2 tornado reports
“NWS Damage Survey concludes an EF-1 tornado occurred with estimated peak winds of 100 mph. The tornado started near Turtle Creek by Klug Road... lifting northeastward t (MKX)”
“NWS Storm Survey concludes an EF-1 tornado occurred with estimated peak winds of 100 mph. The tornado started just north of School Section Road... traveled along State (MKX)”
- Tornado Tornado 3 WNW Delavan SPC verified report
- Tornado Tornado 3 NNW Darien SPC verified report
Thursday, April 16, 2026
3 SPC verified storm reports — hail up to 1", 1 tornado report
“NWS Damage Survey concludes an EF-0 tornado occurred with estimated peak winds of 70 mph and a width of 50 yards. The tornado started along Spring Prairie Road southwes (MKX)”
“Social media report of uprooted tree in East Troy... WI. Time estimated on radar. (MKX)”
- Tornado Tornado 5 WNW Burlington SPC verified report
- Hail 1" 3 SE Palmyra SPC verified report
- Wind Unknown East Troy SPC verified report
Tuesday, April 14, 2026
2 SPC verified storm reports · 3 NWS warnings — hail up to 1", wind gusts up to 50 mph, 1 tornado report
“EF1 tornado west of Elkhorn. Metal roof and wall panels ripped off buildings and lofted. Tree damage. Maximum estimated wind speed of 100 mph. Path of approximately 2 m (MKX)”
“At 158 AM CDT, Doppler radar was tracking strong wind gusts persisting across the area. While the line of storms has exited to the east, these wind gusts will continue for the next 30 minutes. Hazard: Wind gusts up to 50 mph. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include...”
- Tornado Tornado 4 N Delavan SPC verified report
- Wind 50 mph Walworth County NWS severe weather mention
- Wind 50 mph Walworth County NWS severe weather mention
- Hail 1" 2 SE Elkhorn SPC verified report
- Hail 0.5" Walworth County NWS severe weather mention
Monday, April 13, 2026
4 SPC verified storm reports — 1 tornado report
“NWS Storm Survey found EF1 tornado damage southwest of East Troy. Maximum winds of 100 MPH. (MKX)”
“Trained spotter reports large oak tree snapped at base and fallen in road. (MKX)”
- Tornado Tornado 5 SW East Troy SPC verified report
- Wind Unknown 1 S Potter Lake SPC verified report
- Wind Unknown Potter Lake SPC verified report
- Wind Unknown Whitewater SPC verified report
Friday, April 3, 2026
3 NWS warnings — hail up to 0.88"
“At 923 PM CDT, Doppler radar was tracking a strong thunderstorm over Rochester, or 7 miles south of Wind Lake, moving northeast at 25 mph. Hazard: Nickel size hail. Impact: Minor hail damage to vegetation is possible. Locations impacted include...”
“At 914 PM CDT, Doppler radar was tracking strong thunderstorms along a line extending from near Lake Koshkonong to 6 miles east of Milton to near Delavan to near Elkhorn. Movement was northeast at 40 mph. Hazard: Penny size hail. Impact: Minor hail damage to vegetation is possible. Locations impacted include...”
- Hail 0.88" Walworth County NWS severe weather mention
- Hail 0.75" Walworth County NWS severe weather mention
- Hail 0.75" Walworth County NWS severe weather mention
Thursday, April 2, 2026
2 SPC verified storm reports — hail up to 2"
- Hail 2" 2 W Whitewater SPC verified report
- Hail 1" 1 SE Lake Geneva SPC verified report
Wednesday, April 1, 2026
3 SPC verified storm reports — hail up to 1"
“Report from mPING: Quarter (1.00 in.). (MKX)”
“Walworth County Dispatch reports trees down in Sugar Creek Township. Time estimated by radar. (MKX)”
- Hail 1" 2 W Whitewater SPC verified report
- Wind Unknown 2 NW Elkhorn SPC verified report
- Wind Unknown 1 SSW Whitewater SPC verified report
Tuesday, March 31, 2026
5 NWS warnings — hail up to 0.88", wind gusts up to 50 mph
“TEMPORARY PERIOD OF STRONG GUSTS... On the back side of showers pushing through to the south and east we are seeing some gusts upwards of 50 mph. For the next few hours we may see this continue with 40-50 mph gusts possible.”
“At 1150 AM CDT, Doppler radar was tracking a strong thunderstorm near Sharon, or 8 miles north of Poplar Grove, moving northeast at 35 mph. Hazard: Nickel size hail. Impact: Minor hail damage to vegetation is possible. Locations impacted include...”
- Wind 50 mph Walworth County NWS severe weather mention
- Hail 0.88" Walworth County NWS severe weather mention
- Hail 0.5" Walworth County NWS severe weather mention
- Hail 0.5" Walworth County NWS severe weather mention
- Hail 0.5" Walworth County NWS severe weather mention
Today's severe weather outlook
Common questions
When was the last severe storm in Walworth County, WI?
The most recent recorded event was in August 2026. Official NWS and SPC records show 53 severe weather events in Walworth County over the last 180 days. Exact dates and locations for recent storms are available in the app with a free account.
Has there been hail in Walworth County recently?
Yes — 26 hail reports in the last 180 days, with hail up to 2" recorded.
How do I check whether a specific address was affected?
Create a free IDOLCheck account and run an address check. It shows verified storm reports and official NWS warning boundaries around any specific property — county-level pages like this one only tell part of the story.