Hail in Sierra Vista · Jul 11, 2026
NEXRAD logged 2 hail signatures up to 1"; the estimated-size surface reached 0.75" aloft. Open it on the live map to see the swath over the streets.
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Convective day · Jul 11, 2026 · noon–noon UTC
Severity
The 4th most severe storm Sierra Vista 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
- 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 Sierra Vista 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 Jul 11, 2026 sits in Sierra Vista's hail record.
This was Sierra Vista's 1st recorded hail day — the first hail day in our records for the city. By severity it ranks 4th of the 5 storms we have logged here. Radar put the day's largest stone over Sierra Vista at 1" — the largest NEXRAD radar signature.
The Jul 11, 2026 convective day was bigger than Sierra Vista: the same system put hail over 483 other tracked cities, 24 of them in Arizona. Nearest: Huachuca City (16 miles northwest, up to 1.5"); Fort Huachuca (18 miles west, up to 0.75"); Tombstone (21 miles north, up to 1.5").
These maps are stills. In the app this date is one of 5 Sierra Vista 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 Sierra Vista, 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 Sierra Vista 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
Sierra Vista hail history
Other storms in Sierra Vista.
Estimated-size surface Aug 27, 2026
0.5"
Estimated-size surface Aug 5, 2026
1"
Estimated-size surface Jul 25, 2026
1"
Estimated-size surface Jul 12, 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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For iPhone. Android coming soon.
Web trial: 7 days free. Card required. $150/month after the trial unless cancelled.