How big was the hail on June 20, 2024?

The maximum estimated stone size anywhere in Michigan that day was 1.50 inches. Sizes vary street to street inside a single swath, so a city's figure is the largest radar estimated anywhere within about 5 miles of it.

Does this mean roofs were damaged?

Radar measures stone size, not damage. Whether a particular roof was damaged depends on stone size, wind direction, roof age and material — only an inspection settles it. These figures tell you where it is worth looking.

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A HailMate plan puts the whole of Michigan on a real interactive map with this swath and three years of others already on it. $79/mo, and the canvassing tools come with it.

Michigan · June 20, 2024

Michigan hail map — June 20, 2024

Name: Michigan hail map — June 20, 2024
Creator: HailMate

NOAA radar detected hail of an inch or more over 4 Michigan cities on June 20, 2024. The largest stones — 1.50″, half dollar size — fell over Holt.

Hail swath map for Holt, MI on June 20, 2024 showing 1.50 inch hail. — Swath over Holt on June 20, 2024 — 1.50″ hail. Each city below has its own map for this storm.

Cities hit: 4; in Michigan
Largest stone: 1.50″; half dollar size
Impact rating: 5/10; 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.

Roofing contractors

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All of Michigan at street level, with this storm already on it
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Homeowners

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This page covers Michigan as a whole. Check your own address to see every storm on record for your roof — the date and the stone size for each one — and we'll email you the full report to keep.

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Michigan cities hit on June 20, 2024

Holt, MI1.50″ · half dollar Waverly, MI1.50″ · half dollar Lansing, MI1.00″ · quarter Forest Hills, MI1.00″ · quarter

What people on the ground measured in Michigan on June 20, 2024

12 reports filed with the National Weather Service — 4 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.

1.75″ golf ball size Public
2 NE Clarksville, MI2:46 PM EDTIonia County
Report from mPING: Golf Ball (1.75 in.).
1.75″ golf ball size Public
2 E Holt, MI4:59 PM EDTIngham County
1.50″ half dollar size NWS Employee
2 NE Clarksville, MI2:44 PM EDTIonia County
1.50″ half dollar size Trained Spotter
3 S Cedar Springs, MI3:29 PM EDTKent County
1.25″ half dollar size Public
3 ENE Dimondale, MI4:32 PM EDTIngham County
1.25″ half dollar size Public
Mason, MI5:05 PM EDTIngham County
1.00″ quarter size Public
Holt, MI4:43 PM EDTIngham County
1.00″ quarter size Public
3 W Mason, MI4:54 PM EDTIngham County
Report from mPING: Quarter (1.00 in.).
1.00″ quarter size Emergency Mngr
1 NW Mason, MI5:03 PM EDTIngham County
Wind gusts estimated around 50 mph.
0.88″ penny size Trained Spotter
2 N Rockford, MI3:25 PM EDTKent County
Dime to nickel sized hail reported.
0.75″ penny size Public
3 E Cascade, MI2:10 PM EDTKent County
Report from mPING: Dime (0.75 in.).
0.75″ penny size Public
3 S Lansing, MI4:40 PM EDTIngham County
Report from mPING: Dime (0.75 in.).

Showing the 12 largest of 14 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 states hit on June 20, 2024

Colorado3 cities · 1.50″

The full US hail map for June 20, 2024 →

Other Michigan hail days

August 10, 20261 city · 1.00″July 27, 20261 city · 1.00″July 12, 20261 city · 1.00″July 3, 20263 cities · 1.00″June 25, 20263 cities · 1.00″May 17, 20262 cities · 1.50″March 8, 20262 cities · 1.00″August 16, 20251 city · 1.00″July 28, 20251 city · 1.00″June 27, 20252 cities · 1.00″May 15, 20251 city · 1.00″September 19, 20247 cities · 1.50″

Every hail day across Michigan →

FAQ

Michigan hail on June 20, 2024

NOAA radar put hail of an inch or more over 4 Michigan cities that day. The largest stones — 1.50 inches, half dollar size — were over Holt. Every city hit is listed above with its own stone size.

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