Wisconsin hail map — May 15, 2025
NOAA radar detected hail of an inch or more over 17 Wisconsin cities on May 15, 2025. The largest stones — 1.50″, half dollar size — fell over Eau Claire.
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- The May 15, 2025 swath — and every other storm since 2023 across Wisconsin
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- Cities hit
- 17
- in Wisconsin
- Largest stone
- 1.50″
- half dollar size
- Impact rating
- 5/10
- from stone size
Sizes come from NOAA radar, which runs about ±0.25″ against ground truth. It is canvass-targeting quality, not claim evidence.
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Wisconsin cities hit on May 15, 2025
What people on the ground measured in Wisconsin on May 15, 2025
12 reports filed with the National Weather Service — 2 from trained observers or officials. These are measured stones, not radar estimates, so they are the closest thing to proof that hail actually reached the ground.
- 4.00″ softball size Public2 W Altoona, WI4:15 PM CDTEau Claire County
Relayed with photo by WQOW.
- 3.75″ baseball size Public2 WSW Altoona, WI4:18 PM CDTEau Claire County
Email with picture.
- 3.50″ baseball size PublicAltoona, WI4:15 PM CDTEau Claire County
Relayed with photo from WQOW.
- 3.00″ baseball size Broadcast Media2 WSW Altoona, WI4:19 PM CDTEau Claire County
3 inch diameter hail measured at the WEAU studios.
- 2.75″ baseball size PublicAltoona, WI4:18 PM CDTEau Claire County
Report from mPING: Baseball (2.75 in.).
- 2.75″ baseball size Broadcast Media3 SSW Altoona, WI4:18 PM CDTEau Claire County
Corrects previous hail report from 3 SSW Altoona. Corrects previous hail report from 3 SSW Altoona. measured at the WQOW studios.
- 2.50″ hen egg size Trained Spotter1 W Altoona, WI4:15 PM CDTEau Claire County
- 2.50″ hen egg size Public1 W Altoona, WI4:16 PM CDTEau Claire County
Damage to siding reported as well.
- 2.50″ hen egg size Trained Spotter4 W Waterford, WI6:13 PM CDTRacine County
Tennis-Baseball sized hail causing significant damage to vehicles in far western Waterford near Walworth county border.
- 2.50″ hen egg size Public1 SE Ixonia, WI6:14 PM CDTJefferson County
Report from mPING: Tennis Ball (2.50 in.).
- 2.25″ hen egg size Broadcast Media3 SSW Altoona, WI4:18 PM CDTEau Claire County
Corrects previous hail report from 3 SSW Altoona. measured at the WQOW studios.
- 2.25″ hen egg size Public3 NNW Altoona, WI4:20 PM CDTEau Claire County
Showing the 12 largest of 175 hail reports filed that day.
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 Wisconsin hail days
Shopping for a hail app to work Wisconsin?
This page is one storm. If you are deciding which tool to work Wisconsin with all season, these compare the ones roofers actually buy — with every price taken from the vendor's own site and linked.
- Best hail tracking apps, comparedHailMate, HailTrace, Hail Recon, HailStrike and RadarScope — every published price sourced and linked, and who each one is genuinely right for.
- HailMate vs HailTraceStreet-level NOAA swaths on a map your crew can knock, with the CRM already inside — instead of quote-only meteorologist maps billed on top of one.
- Hail map apps for roofers (and the Hail Recon alternative)Every storm on one map instead of loading dates one at a time — plus the canvassing and the whole claim, monthly, for what one state costs them a year.
- Best canvassing apps, comparedHailMate, SalesRabbit, SPOTIO, Knockio, RoofLink and Badger Maps — every published price sourced and linked, and two of them publish none.
Wisconsin hail on May 15, 2025
NOAA radar put hail of an inch or more over 17 Wisconsin cities that day. The largest stones — 1.50 inches, half dollar size — were over Eau Claire. Every city hit is listed above with its own stone size.