How big was the hail on August 9, 2023?

The maximum estimated stone size anywhere in the country that day was 2.00 inches, over Mount Pleasant, MI. 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 radar, ingested directly from the public NOAA archive. The estimated stone size 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 9, 2023

Hail map — August 9, 2023

Name: US hail map — August 9, 2023
Creator: HailMate

NOAA radar detected hail of an inch or more over 24 cities across 7 states on August 9, 2023. The largest stones — 2.00″, hen egg size — fell over Mount Pleasant, MI.

Hail swath map for Mount Pleasant, MI on August 9, 2023 showing 2.00 inch hail. — Largest rendered swath of the day: Mount Pleasant, MI — 2.00″ hail. Each city below has its own map for this storm.

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The August 9, 2023 swath — and every other storm since 2023 across your state
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States hit: 7
Cities hit: 24
Largest stone: 2.00″; hen egg size
Impact rating: 7/10; from stone size

Sizes come from NOAA radar, which runs about ±0.25″ against ground truth. It is canvass-targeting quality, not claim evidence.

Homeowners

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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'll have the date and the stone size in writing — which is the first thing an adjuster asks for.

States hit on August 9, 2023

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

Michigan1 city · 2.00″Tennessee5 cities · 1.50″Alabama10 cities · 1.50″Arkansas3 cities · 1.50″Mississippi3 cities · 1.50″Oklahoma1 city · 1.00″Kansas1 city · 1.00″

What people on the ground measured in the US on August 9, 2023

15 reports filed with the National Weather Service — 2 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.

2.00″ hen egg size Public
1 WNW Smoke Rise, AL5:23 PM CDTBlount County
Pics from Smoke Rise.
1.75″ golf ball size Fire Dept/Rescue
1 WNW Hayden, AL5:33 PM CDTBlount County
1.50″ half dollar size Broadcast Media
4 N Southeast Memphis, TN11:40 AM CDTShelby County
Corrects previous hail report from 3 NNE Southeast Memphis. Reported hail near Walnut Grove and White Station.
1.50″ half dollar size Public
4 E Mccarron, MI3:35 PM EDTChippewa County
Report via social media. Pictures of measured 1.5 inch hailstones on far north side of Neebish Island. Time estimated via radar.
1.50″ half dollar size Public
Fayetteville, AL9:27 PM CDTTalladega County
1.50″ half dollar size Public
2 SSW Wind Creek State, AL10:40 PM CDTTallapoosa County
Ping pong sized hail reported in the Willow Point/Our Town area.
1.25″ half dollar size Public
3 NNE Southeast Memphis, TN11:45 AM CDTShelby County
Reported hail near Walnut Grove and White Station.
1.25″ half dollar size Public
Rickwood Caverns, AL5:17 PM CDTBlount County
1.25″ half dollar size Public
2 W Russell Field Airpo, AL7:11 PM CDTTallapoosa County
1.25″ half dollar size Public
4 SSW Daviston, AL8:31 PM CDTTallapoosa County
Half dollar sized hail on Everglade Road, near Daviston. Pictures on social media.
1.25″ half dollar size Trained Spotter
Hoxie, AR9:38 PM CDTLawrence County
Trained spotter measured half dollar size hail (1.25 in).
1.25″ half dollar size Public
Sedgwick, AR9:45 PM CDTLawrence County
Half dollar size (1.25 in) hail reported in Sedgwick, AR.
1.00″ quarter size Law Enforcement
Hoisington, KS2:21 AM CDTBarton County
1.00″ quarter size Broadcast Media
4 SSE Midtown Memphis, TN11:25 AM CDTShelby County
Quarter size hail reported near Lamar Ave and I-240.
1.00″ quarter size Trained Spotter
3 NW Southeast Memphis, TN11:27 AM CDTShelby County
Quarter size hail reported at the University of Memphis.

Showing the 15 largest of 32 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 hail days

September 30, 20261 city · 2.00″September 28, 20261 city · 1.00″September 27, 20264 cities · 1.00″September 26, 20261 city · 1.00″September 25, 20263 cities · 1.00″September 23, 20262 cities · 1.00″September 22, 202617 cities · 1.00″September 21, 202665 cities · 2.00″September 20, 20268 cities · 1.50″September 19, 202637 cities · 1.50″September 18, 202623 cities · 2.00″September 17, 202619 cities · 1.50″

Every state with hail on record →

FAQ

US hail on August 9, 2023

NOAA radar put hail of an inch or more over 24 cities across 7 states on August 9, 2023. The largest stones — 2.00 inches, hen egg size — were over Mount Pleasant, MI. Every state hit is listed on this page, and every city under it.

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