Does this mean roofs in the area 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. This tells you where it is worth looking.

How accurate is this hail map?

Sizes come from NOAA MRMS radar (MESH), which runs about ±0.25 inches against ground truth and resolves to roughly 1 km cells. That makes it canvass-targeting quality — good enough to pick the neighbourhoods worth knocking, not a substitute for claim evidence.

How do I see this swath on a real map of Saint Peters?

A HailMate plan puts the whole state around Saint Peters on an interactive map with this swath and three years of others already on it. $79/mo, and the canvassing tools come with it.

Saint Peters, MO

Hail map for Saint Peters, MO — May 16, 2025

Name: Hail map for Saint Peters, MO — May 16, 2025
Creator: HailMate

NOAA radar detected hail up to 1.00″ — quarter size — within 5 miles of Saint Peters on May 16, 2025.

Hail swath map for Saint Peters, MO on May 16, 2025 showing 1.00 inch hail.

Max hail size: 1.00″; quarter
Impact rating: 3/10; from stone size
Size bands over the city: 1; distinct radar bands
Measured on the ground: 2.50″; 4.2 mi away · Public

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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The whole state around Saint Peters, with this swath already on it
Three years of hail swaths, filterable by stone size
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Homeowners

Did hail hit your address?

This page covers Saint Peters 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.

Other towns hit on May 16, 2025

Saint Charles, MO2.00″Chesterfield, MO2.00″Burleson, TX2.00″Wildwood, MO2.00″University City, MO2.00″Waxahachie, TX2.00″Ballwin, MO2.00″Kirkwood, MO2.00″Maryland Heights, MO2.00″Carbondale, IL2.00″Hazelwood, MO2.00″Paducah, KY2.00″

Every Missouri city hit on May 16, 2025 →

Other hail dates for Saint Peters

August 12, 20251.00″May 26, 20242.00″March 14, 20241.50″

Every storm over Saint Peters →

What people on the ground measured in Saint Peters, MO on May 16, 2025

53 reports filed with the National Weather Service — 9 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
2 W Harvester, MO · 4.2 mi away2:25 PM CDTSt. Charles County
Report from mPING: Tennis Ball (2.50 in.).
2.00″ hen egg size Public
1 NW Harvester, MO · 3.4 mi away2:26 PM CDTSt. Charles County
Report from mPING: Hen Egg (2.00 in.).
2.00″ hen egg size Public
Cottleville, MO · 3.7 mi away2:25 PM CDTSt. Charles County
Photo submitted via social media.
2.00″ hen egg size Public
2 W Harvester, MO · 4.2 mi away2:30 PM CDTSt. Charles County
Report from mPING: Hen Egg (2.00 in.).
2.00″ hen egg size Public
Harvester, MO · 4.3 mi away2:25 PM CDTSt. Charles County
2.00″ hen egg size Public
1 S Harvester, MO · 4.9 mi away2:20 PM CDTSt. Charles County
2.00″ hen egg size NWS Employee
1 N Weldon Spring, MO · 5.0 mi away2:24 PM CDTSt. Charles County
2.00″ hen egg size Trained Spotter
2 WSW Weldon Spring, MO · 6.9 mi away2:18 PM CDTSt. Charles County
2.00″ hen egg size NWS Employee
2 WSW Weldon Spring, MO · 7.5 mi away2:18 PM CDTSt. Charles County
Hail persisted for 10+ minutes.
2.00″ hen egg size Local Official
1 ENE Chesterfield, MO · 10.3 mi away2:24 PM CDTSt. Louis County
City of Chesterfield official submitted a photo of 2 inch hail.
2.00″ hen egg size Public
2 E Chesterfield, MO · 10.7 mi away2:26 PM CDTSt. Louis County
2.00″ hen egg size Trained Spotter
Defiance, MO · 14.4 mi away2:13 PM CDTSt. Charles County
1.75″ golf ball size Trained Spotter
1 WNW Harvester, MO · 3.1 mi away2:24 PM CDTSt. Charles County
1.75″ golf ball size Public
2 W Harvester, MO · 4.2 mi away2:27 PM CDTSt. Charles County
Report from mPING: Golf Ball (1.75 in.).
1.75″ golf ball size Public
2 WSW Harvester, MO · 4.3 mi away2:25 PM CDTSt. Charles County
picture received on X. time estimated from radar.
1.75″ golf ball size Public
3 SSE Dardenne Prairie, MO · 7.7 mi away2:15 PM CDTSt. Charles County
Golf ball sized hail 3ENE of our office specifically.
1.75″ golf ball size Public
4 S Weldon Spring, MO · 9.8 mi away2:23 PM CDTSt. Louis County
Report from mPING: Golf Ball (1.75 in.).
1.75″ golf ball size Trained Spotter
4 SE Weldon Spring, MO · 9.8 mi away2:24 PM CDTSt. Louis County
Corrects previous hail report from 4 S Weldon Spring.
1.75″ golf ball size Public
1 NW Chesterfield, MO · 9.9 mi away2:24 PM CDTSt. Louis County
Report from mPING: Golf Ball (1.75 in.).
1.75″ golf ball size Public
2 E Chesterfield, MO · 10.7 mi away2:27 PM CDTSt. Louis County
Report from mPING: Golf Ball (1.75 in.).
1.75″ golf ball size Public
3 NW Wildwood, MO · 12.9 mi away2:19 PM CDTSt. Louis County
Corrects previous hail report from 3 NW Wildwood. Report from mPING: Golf Ball (1.75 in.).
1.75″ golf ball size Public
3 NW Wildwood, MO · 12.9 mi away2:20 PM CDTSt. Louis County
Report from mPING: Golf Ball (1.75 in.).
1.50″ half dollar size Public
Saint Peters, MO · 2.0 mi away2:27 PM CDTSt. Charles County
1.50″ half dollar size Broadcast Media
2 SW Saint Peters, MO · 2.8 mi away2:24 PM CDTSt. Charles County
Photo submitted courtesy of Spectrum News.
1.50″ half dollar size Public
Weldon Spring, MO · 5.7 mi away2:20 PM CDTSt. Charles County
time estimated.
1.50″ half dollar size Public
1 NE Chesterfield, MO · 9.7 mi away2:33 PM CDTSt. Louis County
Report from mPING: Ping Pong Ball (1.50 in.).
1.50″ half dollar size Public
3 NW Wildwood, MO · 12.9 mi away2:18 PM CDTSt. Louis County
Report from mPING: Ping Pong Ball (1.50 in.).
1.25″ half dollar size Public
2 NE Saint Peters, MO · 3.0 mi away2:25 PM CDTSt. Charles County
Report from mPING: Half Dollar (1.25 in.).
1.25″ half dollar size Public
1 NE Weldon Spring, MO · 4.9 mi away2:24 PM CDTSt. Charles County
60 mph estimated winds as well.
1.25″ half dollar size Public
1 S O'Fallon, MO · 5.0 mi away2:12 PM CDTSt. Charles County
Report from mPING: Half Dollar (1.25 in.).
1.25″ half dollar size Public
2 SW Harvester, MO · 5.1 mi away2:25 PM CDTSt. Charles County
Report from mPING: Half Dollar (1.25 in.).
1.25″ half dollar size Trained Spotter
2 SW Cottleville, MO · 5.6 mi away2:23 PM CDTSt. Charles County
1.25″ half dollar size Public
3 NW Clarkson Valley, MO · 10.4 mi away2:26 PM CDTSt. Louis County
Report from mPING: Half Dollar (1.25 in.).
1.25″ half dollar size Public
2 E Chesterfield, MO · 10.5 mi away2:34 PM CDTSt. Louis County
Report from mPING: Half Dollar (1.25 in.).
1.25″ half dollar size Public
1 N Town And Country, MO · 13.6 mi away2:32 PM CDTSt. Louis County
Report from mPING: Half Dollar (1.25 in.).
1.00″ quarter size Public
Saint Peters, MO · 2.0 mi away2:20 PM CDTSt. Charles County
time estimated.
1.00″ quarter size Public
1 NW Cottleville, MO · 3.3 mi away2:21 PM CDTSt. Charles County
Report from mPING: Quarter (1.00 in.).
1.00″ quarter size Public
1 NE O'Fallon, MO · 4.0 mi away2:07 PM CDTSt. Charles County
time estimated.
1.00″ quarter size Public
1 SE Cottleville, MO · 4.2 mi away2:21 PM CDTSt. Charles County
Report from mPING: Quarter (1.00 in.).
1.00″ quarter size Public
1 NE Dardenne Prairie, MO · 5.5 mi away2:18 PM CDTSt. Charles County
Report from mPING: Quarter (1.00 in.).
1.00″ quarter size Public
2 SE Dardenne Prairie, MO · 5.7 mi away2:18 PM CDTSt. Charles County
Report from mPING: Quarter (1.00 in.).
1.00″ quarter size Public
4 NE Chesterfield, MO · 9.8 mi away2:30 PM CDTSt. Louis County
time estimated.
1.00″ quarter size Trained Spotter
2 E Chesterfield, MO · 10.5 mi away2:29 PM CDTSt. Louis County
1.00″ quarter size Public
1 S Bridgeton, MO · 11.2 mi away2:37 PM CDTSt. Louis County
Corrects previous hail report from 1 S Bridgeton. Quarter-sized hail at St. Charles Rock Road and McKelvey Road.
1.00″ quarter size Public
1 S Bridgeton, MO · 11.2 mi away5:00 PM CDTSt. Louis County
Quarter-sized hail at St. Charles Rock Road and McKelvey Road.
1.00″ quarter size Public
3 E Chesterfield, MO · 11.6 mi away2:29 PM CDTSt. Louis County
1.00″ quarter size Public
3 NW Wildwood, MO · 12.9 mi away2:22 PM CDTSt. Louis County
Report from mPING: Quarter (1.00 in.).
1.00″ quarter size Public
3 NW Wildwood, MO · 12.9 mi away2:21 PM CDTSt. Louis County
Report from mPING: Quarter (1.00 in.).
1.00″ quarter size Public
3 NW Wildwood, MO · 12.9 mi away2:18 PM CDTSt. Louis County
Report from mPING: Quarter (1.00 in.).
1.00″ quarter size Public
Creve Coeur, MO · 14.0 mi away2:35 PM CDTSt. Louis County
time estimated.
1.00″ quarter size Public
2 W Overland, MO · 14.1 mi away2:45 PM CDTSt. Louis County
1.00″ quarter size Public
2 W Frontenac, MO · 14.6 mi away2:35 PM CDTSt. Louis County
Report from mPING: Quarter (1.00 in.).
1.00″ quarter size Public
Woodson Terrace, MO · 14.7 mi away2:38 PM CDTSt. Louis County
Report from mPING: Quarter (1.00 in.).

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.

FAQ

Saint Peters hail on May 16, 2025

NOAA radar estimated stones up to 1.00 inches — quarter size — within about 5 miles of Saint Peters that day, across 1 distinct size band. Sizes vary street to street inside a single swath.

Knock the Saint Peters streets this storm hit

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