Hail in Saint Louis · Aug 30, 2026
The estimated-size surface reached 0.75" aloft; NEXRAD logged no point detections over Saint Louis that day. Open it on the live map to see the swath over the streets.
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Convective day · Aug 30, 2026 · noon–noon UTC
Severity
The 3rd most severe storm Saint Louis has seen in the last 12 months
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
- Peak hail signal
- 19 /100
- Homes exposed
- 38 /100
- Ground truth
- 0 /100
Largest radar-indicated size — a signal of damage potential, not confirmation.
How many homes sit inside the storm's footprint.
Independent storm reports filed with the NWS.
Evidence / storm surfaces
How Saint Louis saw the hail — from two instruments
Two instruments, one storm: NEXRAD logs the point signatures it detected overhead, while the estimated-size surface models how large the hail aloft could have grown. Agreement between them is not guaranteed — the gaps are where the model ran ahead of, or behind, the detections.
Estimated size field Radar-estimated maximum hail size across the swath, modeled from radar aloft. It reflects the biggest stone the storm could support, which may differ from what actually fell.
Only the radar-estimated size surface resolved for Aug 30, 2026 — this storm produced no NEXRAD point detections over Saint Louis, so there is one map to show, not two.
The storm in context
Where Aug 30, 2026 sits in Saint Louis's hail record.
This was Saint Louis's 3rd recorded hail day, arriving 34 days after the Jul 27, 2026 storm. By severity it ranks 3rd of the 4 storms we have logged here. Radar put the day's largest stone over Saint Louis at 0.75" — radar-estimated size aloft.
The Aug 30, 2026 convective day was bigger than Saint Louis: the same system put hail over 117 other tracked cities, 1 of them in Michigan. Nearest: Breckenridge (4 miles southeast, up to 0.75"); Liberty Center (194 miles south, up to 0.75"); Hartford City (214 miles south, up to 0.5").
These maps are stills. In the app this date is one of 4 Saint Louis storm dates on a live map — both surfaces, the reports, and a replay — and the same map is where you draw the swath. This page rebuilds nightly.
Ground reports
What people on the ground reported
These are storm reports filed with the National Weather Service and released through the NOAA Storm Prediction Center — public-domain observations from spotters, the public, and NWS surveys. We quote each one exactly as filed.
No ground reports were filed with the National Weather Service for this storm over Saint Louis. That is common: a report depends on someone being there to see it and take the time to call it in. The radar surfaces above are the record here — the storm was detected from above even though no one on the ground logged it.
Near the severe threshold
What 0.75" hail means for Saint Louis roofs.
A signal this size sits near the National Weather Service severe threshold. Aging shingles and soft metals such as vents, flashing, and gutters may be more vulnerable; roof age, wind, and material condition all matter, and only an inspection can confirm damage.
Radar reading · not confirmed damage
Roofing exposure
What this storm is worth to a roofer.
Potential roof exposure
$924K
Potential roof exposure — 77 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
Claim window
August 2028
Claims from this storm can typically be filed until around August 2028 — the window to reach these homeowners while it's still open. Deadlines vary by policy and state.
Names and phones for every home in the footprint: at most $16 on top of the $150 plan.
Saint Louis hail history
Other storms in Saint Louis.
Estimated-size surface Sep 3, 2026
0.75"
NEXRAD surface Jul 27, 2026
Estimated-size surface May 17, 2026
1.5"Take your next area into the field.
See the hail, review your recommendations, and canvass with Overview on iPhone.
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