How big was the hail on May 19, 2025?

The maximum estimated stone size anywhere in Missouri 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.

How do I see the actual swath on a map?

A HailMate plan puts the whole of Missouri 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.

Missouri · May 19, 2025

Missouri hail map — May 19, 2025

Name: Missouri hail map — May 19, 2025
Creator: HailMate

NOAA radar detected hail of an inch or more over 14 Missouri cities on May 19, 2025. The largest stones — 1.50″, half dollar size — fell over Florissant.

Hail swath map for Florissant, MO on May 19, 2025 showing 1.50 inch hail. — Swath over Florissant on May 19, 2025 — 1.50″ hail. Each city below has its own map for this storm.

Cities hit: 14; in Missouri
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

Work Missouri on the live hail map

HailMate's canvassing map: hail swaths colour-banded by stone size, from yellow through red to purple, laid over a satellite view of a Texas territory, with hail swath and territory controls.

All of Missouri at street level, with this storm already on it
Three years of hail swaths, filterable by stone size
GPS door-knocking, pins, jobs and estimates — the full loop, not a preview
Month-to-month, cancel anytime

Get started

One state, one user, everything included. $79/mo, cancel anytime.

Homeowners

Did hail hit your address?

This page covers Missouri 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.

Check my address

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.

Missouri cities hit on May 19, 2025

Florissant, MO1.50″ · half dollar University City, MO1.50″ · half dollar Liberty, MO1.50″ · half dollar Kirkwood, MO1.50″ · half dollar Maryland Heights, MO1.50″ · half dollar Hazelwood, MO1.50″ · half dollar Webster Groves, MO1.50″ · half dollar Ferguson, MO1.50″ · half dollar Kansas City, MO1.00″ · quarter Independence, MO1.00″ · quarter Mehlville, MO1.00″ · quarter Gladstone, MO1.00″ · quarter Arnold, MO1.00″ · quarter Affton, MO1.00″ · quarter

What people on the ground measured in Missouri on May 19, 2025

12 reports filed with the National Weather Service — 1 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.

2.50″ hen egg size Public
1 NW Kearney, MO3:30 PM CDTClay County
2.00″ hen egg size Public
3 E Albany, MO2:54 PM CDTGentry County
Social media report of hail slightly larger than golf balls east of Albany. Time estimated from radar.
2.00″ hen egg size Public
Kearney, MO4:03 PM CDTClay County
Social media report of two-inch hail in Kearney. Time estimated from radar.
2.00″ hen egg size Public
1 SW Brentwood, MO8:38 PM CDTSt. Louis County
Via Twitter: Photo of 2 inch diameter hail with measurement included.
2.00″ hen egg size Trained Spotter
1 N Florissant, MO9:01 PM CDTSt. Louis County
Observer estimated wind gusts around 40 mph.
1.75″ golf ball size Public
1 ESE Albany, MO2:54 PM CDTGentry County
1.75″ golf ball size Public
1 N Kearney, MO3:30 PM CDTClay County
1.75″ golf ball size Public
1 E Holt, MO3:54 PM CDTClay County
Social media report and photo of golf ball size hail near Holt. Time estimated from radar.
1.75″ golf ball size Fire Dept/Rescue
Kirkwood, MO8:40 PM CDTSt. Louis County
1.75″ golf ball size 911 Call Center
Saint Ann, MO8:50 PM CDTSt. Louis County
1.75″ golf ball size Law Enforcement
Florissant, MO8:56 PM CDTSt. Louis County
Via Slack: Missouri State Highway Patrol reported golf ball sized hail in Florissant.
1.50″ half dollar size Public
1 NNW Oakview, MO3:03 PM CDTClay County
Social media report. Time confirmed from radar.

Showing the 12 largest of 50 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 May 19, 2025

Oklahoma8 cities · 2.00″Utah2 cities · 2.00″Kansas8 cities · 1.50″Nebraska1 city · 1.50″Arkansas2 cities · 1.00″Iowa1 city · 1.00″Texas2 cities · 1.00″

The full US hail map for May 19, 2025 →

Other Missouri hail days

August 19, 20267 cities · 2.00″August 16, 20263 cities · 1.00″August 12, 20261 city · 1.50″August 6, 20262 cities · 1.50″August 5, 20264 cities · 1.00″July 10, 20261 city · 1.00″June 25, 20261 city · 1.00″June 1, 20265 cities · 1.00″May 31, 20261 city · 1.00″April 28, 20262 cities · 2.00″April 27, 202624 cities · 1.50″April 26, 20261 city · 2.00″

Every hail day across Missouri →

FAQ

Missouri hail on May 19, 2025

NOAA radar put hail of an inch or more over 14 Missouri cities that day. The largest stones — 1.50 inches, half dollar size — were over Florissant. Every city hit is listed above with its own stone size.

Knock the Missouri streets this storm hit

Your whole state at street level, with this swath already on the map — $79/mo, cancel anytime.

One state, everything included · from $79/mo · month-to-month, cancel anytime