Illinois · April 1, 2024

Illinois hail map — April 1, 2024

NOAA radar detected hail of an inch or more over 1 Illinois city on April 1, 2024. The largest stones — 1.00″, quarter size — fell over Granite City.

Hail swath map for Granite City, IL on April 1, 2024 showing 1.00 inch hail.
Swath over Granite City on April 1, 2024 — 1.00″ hail. Each city below has its own map for this storm.
Cities hit
1
in Illinois
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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Illinois cities hit on April 1, 2024

Granite City, IL1.00″ · quarter

What people on the ground measured in Illinois on April 1, 2024

4 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.

  • 1.25″ half dollar size Public
    3 NW Assumption, IL6:37 PM CDTChristian County
  • 1.00″ quarter size Trained Spotter
    3 E Kankakee, IL3:14 PM CDTKankakee County

    Trained spotter reports hail east of Kankakee with most stones near pea size, but a few hail stones up to quarter size mixed in. Time estimated by radar.

  • 0.88″ penny size Amateur Radio
    1 W Bethalto, IL7:16 PM CDTMadison County

    Report of nickel sized hail and heavy rain.

  • 0.50″ penny size Public
    1 NW Long Lake, IL3:20 PM CDTLake County

    Public report of hail up to half inch diameter near Fox Lake. Time estimated by radar.

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 April 1, 2024

Missouri10 cities · 2.00″Texas2 cities · 1.00″
The full US hail map for April 1, 2024 →

Other Illinois hail days

August 13, 20263 cities · 1.00″August 11, 20263 cities · 1.00″August 9, 202640 cities · 1.50″July 27, 2026127 cities · 2.00″July 10, 20262 cities · 1.00″July 4, 20261 city · 1.50″July 3, 202618 cities · 1.00″July 2, 202614 cities · 1.00″June 24, 202614 cities · 1.50″June 17, 20264 cities · 2.00″June 11, 20261 city · 1.00″June 10, 202614 cities · 1.00″
Every hail day across Illinois →
FAQ

Illinois hail on April 1, 2024

NOAA radar put hail of an inch or more over 1 Illinois city that day. The largest stones — 1.00 inches, quarter size — were over Granite City. Every city hit is listed above with its own stone size.

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