Wisconsin hail map — April 21, 2026
NOAA radar detected hail of an inch or more over 3 Wisconsin cities on April 21, 2026. The largest stones — 1.00″, quarter size — fell over Kenosha.
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- The April 21, 2026 swath — and every other storm since 2023 across Wisconsin
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- Cities hit
- 3
- in Wisconsin
- Largest stone
- 1.00″
- quarter size
- Impact rating
- 3/10
- 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 April 21, 2026
What people on the ground measured in Wisconsin on April 21, 2026
6 reports filed with the National Weather Service — 1 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.
- 1.00″ quarter size PublicGreenfield, WI12:21 PM CDTMilwaukee County
Observation with pictures.
- 1.00″ quarter size Official NWS Obs2 WSW Saint Francis, WI12:24 PM CDTMilwaukee County
Milwaukee Airport Observer pictures.
- 1.00″ quarter size Public3 W Saint Francis, WI12:26 PM CDTMilwaukee County
Report from mPING: Quarter (1.00 in.).
- 1.00″ quarter size Public4 SE Wind Lake, WI12:56 PM CDTRacine County
Report from mPING: Quarter (1.00 in.).
- 1.00″ quarter size Public2 SE Elmwood Park, WI1:19 PM CDTRacine County
Report from mPING: Quarter (1.00 in.).
- 0.88″ penny size Public6 E Wind Lake, WI12:54 PM CDTRacine 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.
Hail elsewhere on April 21, 2026
The full US hail map for April 21, 2026 →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 April 21, 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 Kenosha. Every city hit is listed above with its own stone size.