Hail in Martin · Aug 11, 2026
NEXRAD logged 0 hail signatures up to 0"; the estimated-size surface reached 1.75" aloft. Open it on the live map to see the swath over the streets.
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Convective day · Aug 11, 2026 · noon–noon UTC
Severity
The 10th most severe storm Martin 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
- 44 /100
- Homes exposed
- 26 /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 Martin saw the hail — from two instruments
Each storm gets two readings: the radar signatures NEXRAD recorded as the cells passed overhead, and a modeled estimate of hail size in the air. They are independent surfaces, so a mismatch between them is expected — and worth reading.
Radar signature field The point detections NEXRAD recorded overhead. Each signature marks where the radar saw hail aloft — it is a detection, not a stone measured on the ground.
Estimated size field Radar-estimated hail size over the swath. The model reports the biggest stone the storm could sustain in the air; what actually fell may have been smaller.
The storm in context
Where Aug 11, 2026 sits in Martin's hail record.
This was Martin's 11th recorded hail day, arriving 4 days after the Aug 7, 2026 storm. By severity it ranks 10th of the 16 storms we have logged here. Radar put the day's largest stone over Martin at 1.75" — radar-estimated size aloft.
The Aug 11, 2026 convective day was bigger than Martin: the same system put hail over 1,041 other tracked cities, 44 of them in South Dakota. Nearest: Long Valley (29 miles northeast, up to 0.75"); Interior (31 miles north, up to 2.5"); Gordon (32 miles southwest, up to 1.75").
These maps are stills. In the app this date is one of 16 Martin 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.
For this storm over Martin, the NWS report log is empty — a common outcome, since ground reports only happen when someone witnesses the hail and takes the time to call it in. The detection record for the date lives in the radar maps above.
High damage potential
What 1.75" hail means for Martin roofs.
Hail around an inch and a half is capable of cracking shingles, stripping granules, and denting gutters, vents, and siding. Risk is usually greatest near the strongest radar signal, but property-level damage still requires an on-site inspection.
Radar reading · not confirmed damage
Roofing exposure
What this storm is worth to a roofer.
Potential roof exposure
$228K
Potential roof exposure — 19 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 $4 on top of the $150 plan.
Martin hail history
Other storms in Martin.
Estimated-size surface Sep 7, 2026
0.5"
Estimated-size surface Aug 27, 2026
2.25"
Estimated-size surface Aug 24, 2026
2.25"
Estimated-size surface Aug 17, 2026
2.5"
Estimated-size surface Aug 16, 2026
1.25"
Estimated-size surface Aug 7, 2026
1"
Estimated-size surface Jul 29, 2026
1"
Estimated-size surface Jul 27, 2026
1.5"
Estimated-size surface Jul 9, 2026
2.5"
Estimated-size surface Jun 28, 2026
4"
Estimated-size surface Jun 27, 2026
1.75"
Estimated-size surface Jun 9, 2026
0.5"
Estimated-size surface Jun 4, 2026
2.5"
Estimated-size surface Jun 2, 2026
1"
Estimated-size surface May 30, 2026
1.75"Take your next area into the field.
See the hail, review your recommendations, and canvass with Overview on iPhone.
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