How big was the hail on April 18, 2026?

The maximum estimated stone size anywhere in the country that day was 1.50 inches, over Youngstown, OH. 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 · April 18, 2026

Hail map — April 18, 2026

Name: US hail map — April 18, 2026
Creator: HailMate

NOAA radar detected hail of an inch or more over 2 cities across 1 state on April 18, 2026. The largest stones — 1.50″, half dollar size — fell over Youngstown, OH.

Hail swath map for Youngstown, OH on April 18, 2026 showing 1.50 inch hail. — Largest rendered swath of the day: Youngstown, OH — 1.50″ hail. Each city below has its own map for this storm.

States hit: 1
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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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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States hit on April 18, 2026

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

Ohio2 cities · 1.50″

Hardest hit on April 18, 2026

Youngstown, OH1.50″ · half dollar Austintown, OH1.00″ · quarter

What people on the ground measured in the US on April 18, 2026

15 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.

1.75″ golf ball size Public
Bennington, OK4:35 AM CDTBryan County
Relayed from WFO TSA.
1.75″ golf ball size Public
Boswell, OK4:48 AM CDTChoctaw County
1.00″ quarter size Trained Spotter
2 WSW Leaday, TX8:09 AM CDTConcho County
Nickel to Quarter size hail reported at Lake Ivie. (Delayed Report).
1.00″ quarter size Public
Athens, TX9:54 AM CDTHenderson County
Facebook report of penny to quarter size hail in Athens along with torrential rain.
1.00″ quarter size Storm Chaser
3 SSE Clifton, TX10:15 AM CDTBosque County
Facebook photos show hail up to quarter size 3 miles south of Clifton.
1.00″ quarter size Public
Noonday, TX10:20 AM CDTSmith County
Several social media reports of hail nearly covering the ground in the Noonday area. Hail ranged from pea to quarter size.
1.00″ quarter size Public
3 ESE Noonday, TX10:21 AM CDTSmith County
Hail covering the ground from pea size to quarter size in the Gresham area, just south of Tyler.
1.00″ quarter size Public
Tyler, TX10:23 AM CDTSmith County
Numerous reports of hail nearly covering the ground across a large portion of South Tyler. Hail ranged from pea size to quarter size.
1.00″ quarter size Amateur Radio
Whitehouse, TX10:28 AM CDTSmith County
Hail estimated up to 1 inch in downtown Whitehouse.
1.00″ quarter size Public
3 E Whitehouse, TX10:30 AM CDTSmith County
A few social media reports of hail nearly covering the ground around Lake Tyler. Hail range from pea to quarter size.
1.00″ quarter size Public
2 W Brushy Creek, TX7:47 PM CDTWilliamson County
Hail photo with received with ruler. Time estimated via radar.
1.00″ quarter size Public
4 SE Georgetown, TX8:02 PM CDTWilliamson County
Numerous reports of pea to quarter size hail across a swath between Georgetown and Round Rock including communities near Westinghouse Rd, FM 1460, and SH 130. Time estimated via radar.
0.88″ penny size Public
12 NE Mullin, TX9:15 AM CDTMills County
Social media photo of hail ranging from peas to nickels in Priddy, Texas. Time estimated by radar.
0.88″ penny size Amateur Radio
Hamilton, TX9:41 AM CDTHamilton County
Dime to nickel size hail covering the ground in Hamilton. Picture sent via chat.
0.88″ penny size Fire Dept/Rescue
New London, TX10:45 AM CDTRusk County
Hail up to nickel size reported by New London VFD.

Showing the 15 largest of 16 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 April 18, 2026

NOAA radar put hail of an inch or more over 2 cities across 1 state on April 18, 2026. The largest stones — 1.50 inches, half dollar size — were over Youngstown, OH. Every state hit is listed on this page, and every city under it.

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