How big was the hail on August 15, 2023?

The maximum estimated stone size anywhere in the country that day was 1.50 inches, over High Point, NC. 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 · August 15, 2023

Hail map — August 15, 2023

Name: US hail map — August 15, 2023
Creator: HailMate

NOAA radar detected hail of an inch or more over 20 cities across 5 states on August 15, 2023. The largest stones — 1.50″, half dollar size — fell over High Point, NC.

Hail swath map for High Point, NC on August 15, 2023 showing 1.50 inch hail. — Largest rendered swath of the day: High Point, NC — 1.50″ hail. Each city below has its own map for this storm.

States hit: 5
Cities hit: 20
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 your area 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.

Your whole state 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 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.

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.

States hit on August 15, 2023

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

North Carolina4 cities · 1.50″Alabama3 cities · 1.00″Florida11 cities · 1.00″Louisiana1 city · 1.00″South Carolina1 city · 1.00″

What people on the ground measured in the US on August 15, 2023

15 reports filed with the National Weather Service — 5 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
2 WNW Pleasant Garden, NC3:39 PM EDTGuilford County
Report from mPING: Golf Ball (1.75 in.).
1.75″ golf ball size Public
1 NNW Phoenix, GA4:24 PM EDTPutnam County
Corrects previous hail report from 1 NNW Phoenix. Golf ball sized hail reported near the intersection of Harmony Ln and Harmony Rd.
1.75″ golf ball size Public
1 NNE Phoenix, GA4:25 PM EDTPutnam County
Golf ball hail reported at Hwy 44 and Thunder Rd.
1.75″ golf ball size Public
1 NNW Phoenix, GA4:40 PM EDTPutnam County
Golf ball sized hail reported near the intersection of Harmony Ln and Harmony Rd.
1.25″ half dollar size Public
7 SSE Sedge Garden, NC3:05 PM EDTDavidson County
1.00″ quarter size Public
3 SSW Surl, NC2:20 PM EDTPerson County
Social media report.
1.00″ quarter size Trained Spotter
Mocksville, NC2:25 PM EDTDavie County
A trained spotter heard reports of quarter sized hail on the east side of Mocksville with the storm Tuesday afternoon.
1.00″ quarter size Amateur Radio
1 SSE South Henderson, NC2:45 PM EDTVance County
1.00″ quarter size Trained Spotter
2 NNE Welcome, NC2:48 PM EDTDavidson County
1.00″ quarter size Broadcast Media
2 NNW Archdale, NC3:06 PM EDTGuilford County
Report from WGHP studio of 1 inch hail falling.
1.00″ quarter size Trained Spotter
2 WSW Penn Twp, PA4:05 PM EDTBerks County
Report relayed via trained spotter. Hail ranging from marble (1/2) to quarter (1) size.
1.00″ quarter size Local Official
3 SSE Raleigh, NC4:50 PM EDTWake County
1.00″ quarter size Broadcast Media
Hebron, MD5:05 PM EDTWicomico County
Time estimated from radar.
1.00″ quarter size Trained Spotter
1 WSW Emmaus, PA5:08 PM EDTLehigh County
Report relayed via trained spotter.
0.75″ penny size Public
3 WSW Meadville, PA6:48 PM EDTCrawford County
Report from mPING: Dime (0.75 in.).

Showing the 15 largest of 19 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 August 15, 2023

NOAA radar put hail of an inch or more over 20 cities across 5 states on August 15, 2023. The largest stones — 1.50 inches, half dollar size — were over High Point, NC. Every state hit is listed on this page, and every city under it.

Knock the 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