Hail map for Ballwin, MO — April 1, 2024
NOAA radar detected hail up to 2.00″ — hen egg size — within 5 miles of Ballwin on April 1, 2024.

- Max hail size
- 2.00″
- hen egg
- Impact rating
- 7/10
- from stone size
- Size bands over the city
- 3
- distinct radar bands
- Measured on the ground
- 1.75″
- 3.9 mi away · NWS Employee
Sizes come from NOAA MRMS radar (MESH), which runs about ±0.25″ against ground truth. It is canvass-targeting quality, not claim evidence.
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- The whole state around Ballwin, with this swath already on it
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This page covers Ballwin 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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Other towns hit on April 1, 2024
What people on the ground measured in Ballwin, MO on April 1, 2024
13 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.
- 1.75″ golf ball size NWS Employee1 ESE Chesterfield, MO · 3.9 mi away6:21 PM CDTSt. Louis County
Numerous reports of heavy golf ball sized hail falling in Chesterfield for at least 5 minutes.
- 1.25″ half dollar size Public2 ESE Maryland Heights, MO · 10.1 mi away6:41 PM CDTSt. Louis County
Estimated from picture of large hail covering the ground.
- 1.00″ quarter size NWS Employee1 ENE Kirkwood, MO · 7.4 mi away11:21 PM CDTSt. Louis County
Quarter sized hail.
- 1.00″ quarter size Public2 SSE Harvester, MO · 8.7 mi away6:40 PM CDTSt. Charles County
Picture on Twitter of measurement. Quarter sized hail.
- 1.00″ quarter size Public3 W Wildwood, MO · 9.4 mi away6:24 PM CDTSt. Louis County
- 1.00″ quarter size Trained Spotter2 ENE Weldon Spring, MO · 10.1 mi away6:29 PM CDTSt. Charles County
Quarter sized hail at location.
- 1.00″ quarter size NWS Employee1 SW Brentwood, MO · 10.1 mi away11:28 PM CDTSt. Louis County
Quarter sized hail in Rock Hill.
- 1.00″ quarter size Trained Spotter1 SSW Bridgeton, MO · 12.1 mi away6:53 PM CDTSt. Louis County
quarter sized hail.
- 1.00″ quarter size Broadcast Media2 ESE Saint Charles, MO · 13.1 mi away6:42 PM CDTSt. Charles County
Quarter sized hail near Family Arena.
- 1.00″ quarter size Official NWS Obs1 N Woodson Terrace, MO · 14.7 mi away6:45 PM CDTSt. Louis County
KSTL observer reported quarter sized hail at location.
- 0.88″ penny size Trained Spotter1 E Eureka, MO · 8.0 mi away11:09 PM CDTSt. Louis County
Dime to nickel sized hail fell in Eureka for 2 to 3 minutes.
- 0.75″ penny size Trained SpotterBrentwood, MO · 10.8 mi away11:25 PM CDTSt. Louis County
Spotter reported hail between .5 and .75 inches.
- 0.70″ penny size Trained SpotterBrentwood, MO · 10.8 mi away11:25 PM CDTSt. Louis County
Dime sized hail falling in Brentwood.
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.
Ballwin hail on April 1, 2024
NOAA radar estimated stones up to 2.00 inches — hen egg size — within about 5 miles of Ballwin that day, across 3 distinct size bands. Sizes vary street to street inside a single swath.