Hail in Mammoth · Aug 27, 2026
The estimated-size surface reached 1" aloft; NEXRAD logged no point detections over Mammoth that day. Open it on the live map to see the swath over the streets.
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Convective day · Aug 27, 2026 · noon–noon UTC
Severity
The most severe storm Mammoth 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
- 6 /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 Mammoth 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.
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.
Only the radar-estimated size surface resolved for Aug 27, 2026 — this storm produced no NEXRAD point detections over Mammoth, so there is one map to show, not two.
The storm in context
Where Aug 27, 2026 sits in Mammoth's hail record.
This was Mammoth's 5th recorded hail day, arriving 1 day after the Aug 26, 2026 storm. By severity it ranks 1st of the 5 storms we have logged here. Radar put the day's largest stone over Mammoth at 1" — radar-estimated size aloft.
The Aug 27, 2026 convective day was bigger than Mammoth: the same system put hail over 365 other tracked cities, 9 of them in Arizona. Nearest: Oracle (7 miles south, up to 0.75"); San Manuel (9 miles southeast, up to 0.75"); Tucson (32 miles southwest, up to 0.75").
These maps are stills. In the app this date is one of 5 Mammoth 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 Mammoth. 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.
Damage-capable hail signal
What 1" hail means for Mammoth 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
$12K
Potential roof exposure — 1 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 $0 on top of the $150 plan.
Mammoth hail history
Other storms in Mammoth.
NEXRAD surface Aug 26, 2026
0.5"
Estimated-size surface Aug 21, 2026
0.5"
Estimated-size surface Aug 19, 2026
0.75"
Estimated-size surface Jul 13, 2026
0.5"Take your next area into the field.
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