Hail in Marmarth · Aug 11, 2026
NEXRAD logged 0 hail signatures up to 0"; the estimated-size surface reached 1" 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 3rd most severe storm Marmarth 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
- 25 /100
- Homes exposed
- 22 /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 Marmarth 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 Marmarth's hail record.
This was Marmarth's 3rd recorded hail day, arriving 40 days after the Jul 2, 2026 storm. By severity it ranks 3rd of the 3 storms we have logged here. Radar put the day's largest stone over Marmarth at 1" — radar-estimated size aloft.
The Aug 11, 2026 convective day was bigger than Marmarth: the same system put hail over 1,041 other tracked cities, 65 of them in North Dakota. Nearest: Baker (22 miles northwest, up to 3.5"); Rhame (26 miles northeast, up to 2.25"); Ekalaka (28 miles southwest, up to 4").
These maps are stills. In the app this date is one of 3 Marmarth 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 Marmarth, 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.
Damage-capable hail signal
What 1" hail means for Marmarth 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
$144K
Potential roof exposure — 12 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.
Marmarth hail history
Other storms in Marmarth.
Take your next area into the field.
See the hail, review your recommendations, and canvass with Overview on iPhone.
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