Wisconsin hail map — August 9, 2026
NOAA radar detected hail of an inch or more over 3 Wisconsin cities on August 9, 2026. The largest stones — 1.00″, quarter size — fell over Franklin.
- Cities hit
- 3
- in Wisconsin
- Largest stone
- 1.00″
- quarter size
- Impact rating
- 3/10
- from stone size
Sizes come from NOAA MRMS radar (MESH), which runs about ±0.25″ against ground truth. It is canvass-targeting quality, not claim evidence.
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Wisconsin cities hit on August 9, 2026
What people on the ground measured in Wisconsin on August 9, 2026
9 reports filed with the National Weather Service — 1 from trained spotters or officials. These are measured stones, not radar estimates, so they are the closest thing to proof that hail actually reached the ground.
- 1.50″ half dollar size Public2 W Pell Lake, WI11:11 PM CDTWalworth County
Report from mPING: Ping Pong Ball (1.50 in.).
- 1.25″ half dollar size Public3 SW Lake Geneva, WI11:00 PM CDTWalworth County
Report from mPING: Half Dollar (1.25 in.).
- 1.25″ half dollar size Public2 E Mukwonago, WI11:48 PM CDTWaukesha County
Report from mPING: Half Dollar (1.25 in.).
- 1.00″ quarter size Public3 SSE Fontana-on-Geneva, WI10:50 PM CDTWalworth County
- 1.00″ quarter size Amateur Radio1 SSW Lake Geneva, WI11:03 PM CDTWalworth County
- 1.00″ quarter size Public1 SW Mukwonago, WI11:35 PM CDTWaukesha County
- 0.75″ penny size Public2 S Windsor, WI9:48 AM CDTDane County
Report from mPING: Dime (0.75 in.).
- 0.75″ penny size Public1 W Hales Corners, WI12:00 AM CDTWaukesha County
Report from mPING: Dime (0.75 in.).
- 0.70″ penny size Emergency Mngr5 SW Kingston, WI9:28 AM CDTGreen Lake County
Reports come from the National Weather Service Local Storm Report feed, ingested every 15 minutes. A report records where the observer was, not the full extent of the swath — treat it as evidence about the storm, not about any one roof.
Other states hit on August 9, 2026
The full US hail map for August 9, 2026 →Other Wisconsin hail days
Wisconsin hail on August 9, 2026
NOAA radar put hail of an inch or more over 3 Wisconsin cities that day. The largest stones — 1.00 inches, quarter size — were over Franklin. Every city hit is listed above with its own stone size.