Illinois hail map — March 4, 2024
NOAA radar detected hail of an inch or more over 4 Illinois cities on March 4, 2024. The largest stones — 1.50″, half dollar size — fell over Moline.
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- Cities hit
- 4
- in Illinois
- 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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Illinois cities hit on March 4, 2024
What people on the ground measured in Illinois on March 4, 2024
12 reports filed with the National Weather Service — 3 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 Trained Spotter5 SSE Massbach, IL1:29 PM CSTCarroll County
Delayed Report, Near intersection of Zion Rd and Elizabeth Rd, time estimated from radar.
- 1.00″ quarter size Storm Chaser4 NE Morristown, IL3:00 PM CSTHenry County
Extensive quarter sized hail had virtually stopped traffic along I-80 west of Geneseo. estimated around MM15 around 3 pm. Time based on radar.
- 1.00″ quarter size PublicLanark, IL3:05 PM CSTCarroll County
Delayed report via social media. Lasted 10 minutes.
- 1.00″ quarter size PublicLanark, IL3:05 PM CSTCarroll County
- 1.00″ quarter size Public1 N Rock Island, IL4:12 PM CSTRock Island County
Delayed report via social media picture.
- 1.00″ quarter size Public1 W Rock Falls, IL4:15 PM CSTWhiteside County
Report from mPING: Quarter (1.00 in.).
- 1.00″ quarter size Public2 NNE Rock Island, IL4:15 PM CSTRock Island County
Delayed report via social media.
- 1.00″ quarter size Public2 NNW Dixon, IL4:48 PM CSTLee County
Trained spotter reports quarter sized hail on the north side of Dixon.
- 1.00″ quarter size Public1 N Grand Detour, IL4:48 PM CSTOgle County
Photo shared on social media showing quarter size hail near Grand Detour.
- 1.00″ quarter size Public3 NE Esmond, IL6:03 PM CSTDe Kalb County
Quarter sized hail reported southwest of Kirkland. Some melting had occurred prior to observation. Time estimated by radar.
- 1.00″ quarter size Trained SpotterBushnell, IL8:32 PM CSTMcDonough County
Relayed by NWS Lincoln.
- 1.00″ quarter size Trained Spotter1 SE La Grange, IL9:23 PM CSTCook County
Showing the 12 largest of 39 hail reports filed that day.
These are verified ground reports, updated 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 Illinois hail days
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This page is one storm. If you are deciding which tool to work Illinois with all season, these compare the ones roofers actually buy — with every price taken from the vendor's own site and linked.
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Illinois hail on March 4, 2024
NOAA radar put hail of an inch or more over 4 Illinois cities that day. The largest stones — 1.50 inches, half dollar size — were over Moline. Every city hit is listed above with its own stone size.