Hail in Sainte Genevieve · Aug 12, 2026
NEXRAD logged 0 hail signatures up to 0"; the estimated-size surface reached 1.25" aloft. Open it on the live map to see the swath over the streets.
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Convective day · Aug 12, 2026 · noon–noon UTC
Severity
The 4th most severe storm Sainte Genevieve 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
- 31 /100
- Homes exposed
- 77 /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 Sainte Genevieve saw the hail — from two instruments
The maps here read the same storm from two angles — point detections from NEXRAD, and modeled hail size aloft. Where the two disagree is informative: it marks where estimated size outran the signatures, or trailed them.
Radar signature field Where NEXRAD flagged hail as the storm passed — point signatures from the radar, which indicate hail overhead rather than confirm what landed.
Estimated size field The modeled maximum hail size across the swath, derived from radar aloft — the largest stone the storm could have supported, which is not necessarily what reached the ground.
The storm in context
Where Aug 12, 2026 sits in Sainte Genevieve's hail record.
This was Sainte Genevieve's 12th recorded hail day, arriving 33 days after the Jul 10, 2026 storm. By severity it ranks 4th of the 13 storms we have logged here. Radar put the day's largest stone over Sainte Genevieve at 1.25" — radar-estimated size aloft.
The Aug 12, 2026 convective day was bigger than Sainte Genevieve: the same system put hail over 507 other tracked cities, 56 of them in Missouri. Nearest: Bloomsdale (9 miles northwest, up to 0.75"); Modoc (13 miles northeast, up to 1.5"); Saint Mary (14 miles east, up to 1.75").
These maps are stills. In the app this date is one of 13 Sainte Genevieve 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.
The National Weather Service logged no spotter reports for this storm over Sainte Genevieve. That absence is ordinary — filing a report takes a person on the spot who saw the hail and phoned it in. What stands as the record for this date is the radar above, which caught the storm regardless.
Damage-capable hail signal
What 1.25" hail means for Sainte Genevieve roofs.
Quarter-size and larger hail can bruise asphalt mats, remove granules, and dent exposed soft metal. The mapped footprint identifies an inspection priority area — it does not identify which individual roofs, if any, sustained damage.
Radar reading · not confirmed damage
Roofing exposure
What this storm is worth to a roofer.
Potential roof exposure
$81M
Potential roof exposure — 6,729 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 34 jobs
- Illustrative work
- ~$510K
Close just 0.5% of the 6,729 homes in this footprint at the average $15,000 roof job. Illustrative math, not a projection — your results depend on your outreach and how the market responds.
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 $1,413 on top of the $150 plan.
Sainte Genevieve hail history
Other storms in Sainte Genevieve.
Estimated-size surface Aug 25, 2026
1.5"
Estimated-size surface Jul 10, 2026
1"
Estimated-size surface Jul 9, 2026
1"
Estimated-size surface Jul 8, 2026
1"
Estimated-size surface Jul 4, 2026
1"
Estimated-size surface Jun 16, 2026
0.75"
Estimated-size surface Jun 11, 2026
0.5"
Estimated-size surface Jun 1, 2026
1.75"
Estimated-size surface May 31, 2026
1"
Estimated-size surface Apr 27, 2026
2.25"
Estimated-size surface Apr 26, 2026
2.5"
NEXRAD surface Mar 15, 2026
1"Take your next area into the field.
See the hail, review your recommendations, and canvass with Overview on iPhone.
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