How big was the hail on February 23, 2024?

The maximum estimated stone size anywhere in the country that day was 1.50 inches, over Great Falls, MT. 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 · February 23, 2024

Hail map — February 23, 2024

Name: US hail map — February 23, 2024
Creator: HailMate

NOAA radar detected hail of an inch or more over 2 cities across 2 states on February 23, 2024. The largest stones — 1.50″, half dollar size — fell over Great Falls, MT.

Hail swath map for Great Falls, MT on February 23, 2024 showing 1.50 inch hail. — Largest rendered swath of the day: Great Falls, MT — 1.50″ hail. Each city below has its own map for this storm.

States hit: 2
Cities hit: 2
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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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 February 23, 2024

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

Montana1 city · 1.50″North Dakota1 city · 1.00″

Hardest hit on February 23, 2024

Great Falls, MT1.50″ · half dollar Minot, ND1.00″ · quarter

What people on the ground measured in the US on February 23, 2024

15 reports filed with the National Weather Service — 2 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.

0.70″ penny size NWS Employee
2 W Columbia Metro Apt, SC5:00 PM ESTLexington County
Dime sized hail in the Three Fountains area, just west of CAE airport, reported by retired NWS meteorologist.
0.50″ penny size Public
Jenkinsville, SC4:00 PM ESTFairfield County
Public report of hail in Jenkinsville.
0.50″ penny size Public
4 SW White Rock, SC4:33 PM ESTLexington County
0.50″ penny size Public
1 SW Irmo, SC4:49 PM ESTLexington County
Report from mPING: Half-inch (0.50 in.).
0.50″ penny size Public
3 E Owens Field, SC5:10 PM ESTRichland County
0.50″ penny size Public
2 ENE Owens Field, SC5:11 PM ESTRichland County
0.50″ penny size Public
2 NE Lexington, SC5:28 PM ESTLexington County
Report from mPING: Half-inch (0.50 in.).
0.50″ penny size Public
2 E Red Bank, SC5:38 PM ESTLexington County
Report from mPING: Half-inch (0.50 in.).
0.50″ penny size Public
1 E Red Bank, SC5:45 PM ESTLexington County
Report from mPING: Half-inch (0.50 in.).
0.25″ penny size Trained Spotter
5 W Belpre, OH3:15 PM ESTWashington County
Spotter reports hail of pea size to one-third of an inch in diameter.
0.25″ penny size Public
4 SW Lake Wateree Dam, SC3:35 PM ESTKershaw County
Pea size hail reported on Springvale Road.
0.25″ penny size Public
1 SSE Camden, SC4:05 PM ESTKershaw County
Pea size hail reported in downtown Camden.
0.25″ penny size Public
Bishopville, SC4:15 PM ESTLee County
Public report of pea size hail in Bishopville.
0.25″ penny size Public
Dreher Island SP, SC4:20 PM ESTNewberry County
Public report of pea size hail.
0.25″ penny size Broadcast Media
2 SE Charleston, WV4:28 PM ESTKanawha County

Showing the 15 largest of 27 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

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 February 23, 2024

NOAA radar put hail of an inch or more over 2 cities across 2 states on February 23, 2024. The largest stones — 1.50 inches, half dollar size — were over Great Falls, MT. Every state hit is listed on this page, and every city under it.

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