How big was the hail on May 12, 2025?

The maximum estimated stone size anywhere in the country that day was 2.00 inches, over West Albany, NY. 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 · May 12, 2025

Hail map — May 12, 2025

Name: US hail map — May 12, 2025
Creator: HailMate

NOAA radar detected hail of an inch or more over 3 cities across 1 state on May 12, 2025. The largest stones — 2.00″, hen egg size — fell over West Albany, NY.

Hail swath map for West Albany, NY on May 12, 2025 showing 2.00 inch hail. — Largest rendered swath of the day: West Albany, NY — 2.00″ hail. Each city below has its own map for this storm.

States hit: 1
Cities hit: 3
Largest stone: 2.00″; hen egg size
Impact rating: 7/10; 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 May 12, 2025

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

New York3 cities · 2.00″

Hardest hit on May 12, 2025

West Albany, NY2.00″ · hen egg Troy, NY2.00″ · hen egg Latham, NY2.00″ · hen egg

What people on the ground measured in the US on May 12, 2025

10 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.

1.25″ half dollar size Public
3 S Shady Grove, TN4:34 PM CDTHamilton County
Social media message reporting half dollar sized hail in Lakesite Tennessee.
1.00″ quarter size Trained Spotter
2 WSW Columbia Falls, MT1:00 AM MDTFlathead County
Bob leaves a message on our spotter line every day with the temperatures and precipitation from the previous day.
1.00″ quarter size Fire Dept/Rescue
3 SSE Apple Valley, GA6:45 PM EDTJackson County
Quarter Size hail in the city of Jefferson near Brockton Rd and Red Tail Rd.
0.80″ penny size Public
Columbia Falls, MT1:15 AM MDTFlathead County
Video came in on X from person with frequent weather posts in Columbia Falls. Reported nickel size hail in the text.
0.75″ penny size Public
2 N Madison, AL3:04 PM CDTMadison County
Report from mPING: Dime (0.75 in.).
0.70″ penny size Public
4 NW Woodbury, TN5:38 PM CDTCannon County
Hail up to dime size fell on Locke Creed Rd northwest of Woodbury.
0.50″ penny size Public
Evergreen, MT12:50 AM MDTFlathead County
Not quite enough to cover the ground, it only lasted about 5 minutes and was gone.
0.50″ penny size Public
2 N Madison, AL3:03 PM CDTMadison County
Report from mPING: Half-inch (0.50 in.).
0.50″ penny size Public
3 S Shady Grove, TN4:19 PM CDTHamilton County
Report from mPING: Half-inch (0.50 in.).
0.25″ penny size Trained Spotter
3 W Dinsmore, CA3:33 PM PDTHumboldt County
Intense hail/rain mix (mostly hail) squall.

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 May 12, 2025

NOAA radar put hail of an inch or more over 3 cities across 1 state on May 12, 2025. The largest stones — 2.00 inches, hen egg size — were over West Albany, NY. Every state hit is listed on this page, and every city under it.

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