/ Storm field report · Graham

Hail in Willcox · Sep 11, 2026

Hit 3 days ago

The estimated-size surface reached 0.75" aloft; NEXRAD logged no point detections over Willcox that day. Open it on the live map to see the swath over the streets.

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Peak hail signal 0.75" ≈ penny to nickel · radar-estimated size aloft
Homes in the hail footprint 126
Ground reports 0 none filed
Radar surfaces 1 Estimated size only

Convective day · Sep 11, 2026 · noon–noon UTC

Severity

The 8th most severe storm Willcox has seen in the last 12 months

Composite score · 2.2 / 10
Storm severity score

Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.

2.2 /10
Peak hail signal
19 /100

Largest radar-indicated size — a signal of damage potential, not confirmation.

Homes exposed
42 /100

How many homes sit inside the storm's footprint.

Ground truth
0 /100

Independent storm reports filed with the NWS.

Evidence / storm surfaces

How Willcox saw the hail — from two instruments

Sep 11, 2026 · Willcox, AZ

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-estimated hail size Surface resolved
Radar-estimated hail-size map of the storm over Willcox, AZ on Sep 11, 2026 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.

Max size 0.75"

Only the radar-estimated size surface resolved for Sep 11, 2026 — this storm produced no NEXRAD point detections over Willcox, so there is one map to show, not two.

The storm in context

Where Sep 11, 2026 sits in Willcox's hail record.

This was Willcox's 13th recorded hail day, arriving 2 days after the Sep 9, 2026 storm. By severity it ranks 8th of the 14 storms we have logged here. Radar put the day's largest stone over Willcox at 0.75" — radar-estimated size aloft.

The Sep 11, 2026 convective day was bigger than Willcox: the same system put hail over 322 other tracked cities, 17 of them in Arizona. Nearest: Morenci (48 miles east, up to 0.5"); Pearce (76 miles southeast, up to 0.5"); Amado (95 miles southwest, up to 1").

These maps are stills. In the app this date is one of 14 Willcox 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

No reports filed with the NWS

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 Willcox, 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.

Near the severe threshold

What 0.75" hail means for Willcox roofs.

A signal this size sits near the National Weather Service severe threshold. Aging shingles and soft metals such as vents, flashing, and gutters may be more vulnerable; roof age, wind, and material condition all matter, and only an inspection can confirm damage.

Radar reading · not confirmed damage

Roofing exposure

What this storm is worth to a roofer.

126 homes × $12,000 avg. claim

Potential roof exposure

$1.5M

Potential roof exposure — 126 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.

Illustrative jobs
1 job
Illustrative work
~$15K

Close just 0.5% of the 126 homes in this footprint at the average $15,000 roof job. Illustrative math, not a projection — your results depend on your outreach and how the market responds.

Claim window

September 2028

Claims from this storm can typically be filed until around September 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 $26 on top of the $150 plan.

Willcox hail history

14 recorded storm days in Willcox, AZ
Radar-estimated hail-size map of the storm over Willcox, AZ on Sep 12, 2026 Estimated-size surface
Storm date Willcox / AZ

Sep 12, 2026

0.5"
Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Willcox, AZ on Sep 9, 2026 Estimated-size surface
Storm date Willcox / AZ

Sep 9, 2026

0.75"
Estimated 0.75"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Willcox, AZ on Aug 10, 2026 Estimated-size surface
Storm date Willcox / AZ

Aug 10, 2026

1.75"
Estimated 1.75"
1 ground report Open report →
Radar-estimated hail-size map of the storm over Willcox, AZ on Aug 7, 2026 Estimated-size surface
Storm date Willcox / AZ

Aug 7, 2026

1.25"
Estimated 1.25"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Willcox, AZ on Aug 5, 2026 Estimated-size surface
Storm date Willcox / AZ

Aug 5, 2026

1"
Estimated 1"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Willcox, AZ on Aug 3, 2026 Estimated-size surface
Storm date Willcox / AZ

Aug 3, 2026

1.25"
Estimated 1.25"
2 ground reports Open report →
Radar-estimated hail-size map of the storm over Willcox, AZ on Jul 24, 2026 Estimated-size surface
Storm date Willcox / AZ

Jul 24, 2026

1.25"
Signatures 1.25" Estimated 0.75"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Willcox, AZ on Jul 20, 2026 Estimated-size surface
Storm date Willcox / AZ

Jul 20, 2026

0.5"
Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Willcox, AZ on Jul 19, 2026 Estimated-size surface
Storm date Willcox / AZ

Jul 19, 2026

0.5"
Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Willcox, AZ on Jul 14, 2026 Estimated-size surface
Storm date Willcox / AZ

Jul 14, 2026

0.75"
Estimated 0.75"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Willcox, AZ on Jul 12, 2026 Estimated-size surface
Storm date Willcox / AZ

Jul 12, 2026

1.5"
Signatures 1.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Willcox, AZ on Jul 11, 2026 Estimated-size surface
Storm date Willcox / AZ

Jul 11, 2026

1.5"
Signatures 1.5" Estimated 0.75"
1 ground report Open report →
Radar-estimated hail-size map of the storm over Willcox, AZ on Jun 3, 2026 Estimated-size surface
Storm date Willcox / AZ

Jun 3, 2026

1.75"
Signatures 1.75" Estimated 1"
No ground reports filed Open report →

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A storm day here is a convective day — it runs from noon to noon UTC, so late-night hail is grouped with the afternoon storm that spawned it rather than split across two calendar dates. Ground reports are public-domain observations from the NOAA Storm Prediction Center. Radar tells you where to look. Only an inspection confirms damage at an address. Last updated Sep 13, 2026.