Hail in Dewey · Aug 12, 2026
NEXRAD logged 0 hail signatures up to 0"; the estimated-size surface reached 0.5" 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 9th most severe storm Dewey 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
- 13 /100
- Homes exposed
- 0 /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 Dewey 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 12, 2026 sits in Dewey's hail record.
This was Dewey's 9th recorded hail day, arriving 4 days after the Aug 8, 2026 storm. By severity it ranks 9th of the 11 storms we have logged here. Radar put the day's largest stone over Dewey at 0.5" — radar-estimated size aloft.
The Aug 12, 2026 convective day was bigger than Dewey: the same system put hail over 507 other tracked cities, 13 of them in Arizona. Nearest: Cottonwood (15 miles northeast, up to 0.5"); Prescott (17 miles west, up to 0.75"); Clarkdale (18 miles north, up to 0.5").
These maps are stills. In the app this date is one of 11 Dewey 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 Dewey, 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.
Below the severe threshold
What 0.5" hail means for Dewey roofs.
Radar signals under three-quarters of an inch stay below the National Weather Service severe threshold and generally indicate lower roof risk. Older or already-worn materials can still show effects, but radar alone cannot determine whether a specific roof was damaged.
Radar reading · not confirmed damage
Aug 29, 2026
0.5"
Estimated-size surface Aug 20, 2026
1"
Estimated-size surface Aug 8, 2026
1.75"
Estimated-size surface Aug 6, 2026
0.5"
Estimated-size surface Aug 5, 2026
0.5"
Estimated-size surface Jul 27, 2026
0.5"
Estimated-size surface Jul 25, 2026
1.25"
Estimated-size surface Jul 21, 2026
0.5"
Estimated-size surface Jul 20, 2026
2"
Estimated-size surface Jul 12, 2026
2.5"Take your next area into the field.
See the hail, review your recommendations, and canvass with Overview on iPhone.
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