Hail in Saint Francis · Aug 16, 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 16, 2026 · noon–noon UTC
Severity
The 11th most severe storm Saint Francis 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
- 24 /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 Francis 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 16, 2026 sits in Saint Francis's hail record.
This was Saint Francis's 11th recorded hail day, arriving 5 days after the Aug 11, 2026 storm. By severity it ranks 11th of the 14 storms we have logged here. Radar put the day's largest stone over Saint Francis at 1.25" — radar-estimated size aloft.
The Aug 16, 2026 convective day was bigger than Saint Francis: the same system put hail over 264 other tracked cities, 15 of them in South Dakota. Nearest: Kilgore (13 miles southeast, up to 2"); Merriman (31 miles southwest, up to 1.25"); Martin (39 miles west, up to 1.25").
These maps are stills. In the app this date is one of 14 Saint Francis 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 Saint Francis. 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 Saint Francis 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
$180K
Potential roof exposure — 15 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 $3 on top of the $150 plan.
Saint Francis hail history
Other storms in Saint Francis.
Estimated-size surface Aug 27, 2026
2"
Estimated-size surface Aug 21, 2026
0.5"
Estimated-size surface Aug 17, 2026
2"
Estimated-size surface Aug 11, 2026
1.75"
Estimated-size surface Aug 8, 2026
1.25"
Estimated-size surface Jul 30, 2026
2.5"
Estimated-size surface Jul 29, 2026
0.75"
Estimated-size surface Jul 27, 2026
1.25"
Estimated-size surface Jul 9, 2026
3.25"
Estimated-size surface Jul 6, 2026
1.75"
Estimated-size surface Jun 27, 2026
1.75"
Estimated-size surface Jun 4, 2026
1.75"
Estimated-size surface Apr 22, 2026
1"The next storm won’t wait for you.
Set your territory and alerts today. When hail hits, use Overview to choose your streets and get moving.
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