How big was the hail on August 30, 2024?

The maximum estimated stone size anywhere in the country that day was 1.50 inches, over Durham, NC. 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.

Where does this hail data come from?

NOAA MRMS radar, specifically the Maximum Estimated Size of Hail product, ingested directly from the public NOAA archive. It runs about a quarter of an inch against ground truth, which makes it good for deciding where to look and not a substitute for an inspection.

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.

How do I see the actual swath on a map?

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

United States · August 30, 2024

Hail map — August 30, 2024

Name: US hail map — August 30, 2024
Creator: HailMate

NOAA radar detected hail of an inch or more over 7 cities across 4 states on August 30, 2024. The largest stones — 1.50″, half dollar size — fell over Durham, NC.

Hail swath map for Durham, NC on August 30, 2024 showing 1.50 inch hail. — Largest rendered swath of the day: Durham, NC — 1.50″ hail. Each city below has its own map for this storm.

States hit: 4
Cities hit: 7
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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Your whole state at street level, with this storm already on it
Three years of hail swaths, filterable by stone size
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Homeowners

Did hail hit your address?

This page covers your area 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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Free, and no account needed to look it up. If hail did hit, you can ask for a free inspection from a vetted local roofer.

States hit on August 30, 2024

Every state where NOAA radar put an inch or more of hail over a city that day, biggest stone first.

North Carolina1 city · 1.50″Illinois4 cities · 1.00″Indiana1 city · 1.00″Ohio1 city · 1.00″

Hardest hit on August 30, 2024

Durham, NC1.50″ · half dollar Springfield, IL1.00″ · quarter Champaign, IL1.00″ · quarter Lawrence, IN1.00″ · quarter Urbana, IL1.00″ · quarter Austintown, OH1.00″ · quarter Edwardsville, IL1.00″ · quarter

What people on the ground measured in the US on August 30, 2024

11 reports filed with the National Weather Service — 3 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.

1.50″ half dollar size Public
Casco, MI7:56 PM EDTSt. Clair County
Hail diameter verified via social media image.
1.25″ half dollar size Emergency Mngr
2 NE Watseka, IL4:30 PM CDTIroquois County
1.00″ quarter size Public
2 NW Laurel Fork, VA2:36 PM EDTCarroll County
1.00″ quarter size Public
Climax, MI4:59 PM EDTKalamazoo County
Public report of penny to quarter sized hail. Time estimated via radar.
1.00″ quarter size Public
3 SW Sonoraville, GA5:03 PM EDTGordon County
Report from mPING: Quarter (1.00 in.).
0.88″ penny size Emergency Mngr
Winchester, IL3:04 PM CDTScott County
0.88″ penny size Trained Spotter
3 NE Galax City, VA4:09 PM EDTCity of Galax County
REPORTED AT WALMART.
0.75″ penny size Public
2 SSE Mountain Home, NC3:10 PM EDTHenderson County
Penny sized hail.
0.70″ penny size Public
5 SSW Collegeville, IN6:27 PM EDTJasper County
0.25″ penny size Public
3 NNW Jackson, MI6:37 PM EDTJackson County
Report received via social media of pea sized hail in Blackman Township. Time estimated via radar.
0.25″ penny size Amateur Radio
3 SE Indian Land, SC8:52 PM EDTLancaster County
Amateur radio spotter reported pea size hail beginning at 8:52 pm and ending at 9:01 pm along Henry Harris Rd in Indian Land.

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 hail days

August 19, 202620 cities · 2.00″August 18, 20266 cities · 1.50″August 17, 20266 cities · 1.00″August 16, 202610 cities · 1.50″August 15, 20268 cities · 1.50″August 14, 202611 cities · 2.00″August 13, 202616 cities · 2.00″August 12, 202610 cities · 1.50″August 11, 202633 cities · 2.00″August 10, 202623 cities · 1.50″August 9, 202649 cities · 1.50″August 8, 20265 cities · 1.50″

Every state with hail on record →

FAQ

US hail on August 30, 2024

NOAA radar put hail of an inch or more over 7 cities across 4 states on August 30, 2024. The largest stones — 1.50 inches, half dollar size — were over Durham, NC. Every state hit is listed on this page, and every city under it.

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