Wisconsin · April 21, 2026

Wisconsin hail map — April 21, 2026

NOAA radar detected hail of an inch or more over 2 Wisconsin cities on April 21, 2026. The largest stones — 1.00″, quarter size — fell over Racine.

Hail swath map for Racine, WI on April 21, 2026 showing 1.00 inch hail.
Swath over Racine on April 21, 2026 — 1.00″ hail. Each city below has its own map for this storm.
Cities hit
2
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 April 21, 2026

Racine, WI1.00″ · quarterMount Pleasant, WI1.00″ · quarter

What people on the ground measured in Wisconsin on April 21, 2026

6 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.

  • 1.00″ quarter size Public
    Greenfield, WI12:21 PM CDTMilwaukee County

    Observation with pictures.

  • 1.00″ quarter size Official NWS Obs
    2 WSW Saint Francis, WI12:24 PM CDTMilwaukee County

    Milwaukee Airport Observer pictures.

  • 1.00″ quarter size Public
    3 W Saint Francis, WI12:26 PM CDTMilwaukee County

    Report from mPING: Quarter (1.00 in.).

  • 1.00″ quarter size Public
    4 SE Wind Lake, WI12:56 PM CDTRacine County

    Report from mPING: Quarter (1.00 in.).

  • 1.00″ quarter size Public
    2 SE Elmwood Park, WI1:19 PM CDTRacine County

    Report from mPING: Quarter (1.00 in.).

  • 0.88″ penny size Public
    6 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

August 18, 20261 city · 1.00″August 11, 20261 city · 1.00″August 9, 20263 cities · 1.00″July 27, 20269 cities · 2.00″July 3, 20261 city · 1.00″July 2, 20263 cities · 1.00″July 1, 20262 cities · 2.00″June 29, 20261 city · 1.00″June 24, 20262 cities · 1.00″June 16, 20261 city · 1.00″June 10, 20261 city · 1.00″May 27, 20262 cities · 2.00″
Every hail day across Wisconsin →
FAQ

Wisconsin hail on April 21, 2026

NOAA radar put hail of an inch or more over 2 Wisconsin cities that day. The largest stones — 1.00 inches, quarter size — were over Racine. Every city hit is listed above with its own stone size.

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