/ Storm field report · Logan

Hail in Sterling · Sep 5, 2026

Hit 7 days ago

The estimated-size surface reached 2" aloft; NEXRAD logged no point detections over Sterling that day. At 2" — tennis ball — this is a severe hail signal associated with roof damage. Open it on the live map to see the swath over the streets.

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Peak hail signal 2" ≈ tennis ball · radar-estimated size aloft
Homes in the hail footprint 6,623
Ground reports 1 1 hail
Radar surfaces 1 Estimated size only

Convective day · Sep 5, 2026 · noon–noon UTC

Severity

The 5th most severe storm Sterling has seen in the last 12 months

Composite score · 5.2 / 10
Storm severity score

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

5.2 /10
Peak hail signal
50 /100

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

Homes exposed
76 /100

How many homes sit inside the storm's footprint.

Ground truth
17 /100

Independent storm reports filed with the NWS.

Evidence / storm surfaces

How Sterling saw the hail — from two instruments

Sep 5, 2026 · Sterling, CO

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 Sterling, CO on Sep 5, 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 2"

Only the radar-estimated size surface resolved for Sep 5, 2026 — this storm produced no NEXRAD point detections over Sterling, so there is one map to show, not two.

The storm in context

Where Sep 5, 2026 sits in Sterling's hail record.

This was Sterling's 24th recorded hail day, arriving 10 days after the Aug 26, 2026 storm. By severity it ranks 5th of the 24 storms we have logged here. Radar put the day's largest stone over Sterling at 2" — radar-estimated size aloft.

The Sep 5, 2026 convective day was bigger than Sterling: the same system put hail over 514 other tracked cities, 9 of them in Colorado. Nearest: Iliff (17 miles northeast, up to 1.25"); Fleming (18 miles east, up to 1.25"); Peetz (24 miles north, up to 1").

These maps are stills. In the app this date is one of 24 Sterling 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

1 report 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.

Hail reports

1 report
Hail size 1.75"
1 SE Sterling Logan County

“Report from mPING: Golf Ball (1.75 in.). (BOU)”

— NOAA / SPC storm report

Severe hail signal

What 2" hail means for Sterling roofs.

Two-inch-plus hail is capable of puncturing shingles, breaking skylights or windows, and heavily denting soft materials. The strongest radar bands warrant prompt inspection, but neither the signal nor the footprint confirms damage at a specific address.

Radar reading · not confirmed damage

Roofing exposure

What this storm is worth to a roofer.

6,623 homes × $12,000 avg. claim

Potential roof exposure

$79M

Potential roof exposure — 6,623 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.

Illustrative jobs
33 jobs
Illustrative work
~$495K

Close just 0.5% of the 6,623 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 $1,391 on top of the $150 plan.

Sterling hail history

Other storms in Sterling.

24 recorded storm days in Sterling, CO
← All hail in Sterling
Radar-estimated hail-size map of the storm over Sterling, CO on Aug 26, 2026 Estimated-size surface
Storm date Sterling / CO

Aug 26, 2026

0.5"
Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Sterling, CO on Aug 25, 2026 Estimated-size surface
Storm date Sterling / CO

Aug 25, 2026

0.5"
Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Sterling, CO on Aug 15, 2026 Estimated-size surface
Storm date Sterling / CO

Aug 15, 2026

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

Aug 14, 2026

0.5"
Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Sterling, CO on Aug 12, 2026 Estimated-size surface
Storm date Sterling / CO

Aug 12, 2026

1.75"
Estimated 1.75"
3 ground reports Open report →
Radar-estimated hail-size map of the storm over Sterling, CO on Jul 28, 2026 Estimated-size surface
Storm date Sterling / CO

Jul 28, 2026

4"
Signatures 4" Estimated 3"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Sterling, CO on Jul 22, 2026 Estimated-size surface
Storm date Sterling / CO

Jul 22, 2026

1"
Signatures 1" Estimated 1"
5 ground reports Open report →
Radar-estimated hail-size map of the storm over Sterling, CO on Jul 4, 2026 Estimated-size surface
Storm date Sterling / CO

Jul 4, 2026

1.25"
Signatures 1.25" Estimated 0.75"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Sterling, CO on Jul 3, 2026 Estimated-size surface
Storm date Sterling / CO

Jul 3, 2026

2.5"
Signatures 2.5" Estimated 1.75"
1 ground report Open report →
Radar-estimated hail-size map of the storm over Sterling, CO on Jul 2, 2026 Estimated-size surface
Storm date Sterling / CO

Jul 2, 2026

2.75"
Signatures 2.75" Estimated 1.25"
2 ground reports Open report →
Radar-estimated hail-size map of the storm over Sterling, CO on Jun 30, 2026 Estimated-size surface
Storm date Sterling / CO

Jun 30, 2026

4"
Signatures 4" Estimated 3"
4 ground reports Open report →
Radar-estimated hail-size map of the storm over Sterling, CO on Jun 23, 2026 Estimated-size surface
Storm date Sterling / CO

Jun 23, 2026

0.5"
Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Sterling, CO on Jun 22, 2026 Estimated-size surface
Storm date Sterling / CO

Jun 22, 2026

2.75"
Estimated 2.75"
9 ground reports Open report →
Radar-estimated hail-size map of the storm over Sterling, CO on Jun 21, 2026 Estimated-size surface
Storm date Sterling / CO

Jun 21, 2026

1.5"
Estimated 1.5"
2 ground reports Open report →
Radar-estimated hail-size map of the storm over Sterling, CO on Jun 9, 2026 Estimated-size surface
Storm date Sterling / CO

Jun 9, 2026

1"
Signatures 1" Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Sterling, CO on Jun 8, 2026 Estimated-size surface
Storm date Sterling / CO

Jun 8, 2026

1"
Signatures 1" Estimated 0.5"
1 ground report Open report →
NEXRAD radar-signature map of the hail storm over Sterling, CO on Jun 4, 2026 NEXRAD surface
Storm date Sterling / CO

Jun 4, 2026

0.75"
Signatures 0.75"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Sterling, CO on Jun 1, 2026 Estimated-size surface
Storm date Sterling / CO

Jun 1, 2026

1"
Signatures 1" Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Sterling, CO on May 30, 2026 Estimated-size surface
Storm date Sterling / CO

May 30, 2026

1"
Signatures 1" Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Sterling, CO on May 29, 2026 Estimated-size surface
Storm date Sterling / CO

May 29, 2026

No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Sterling, CO on May 21, 2026 Estimated-size surface
Storm date Sterling / CO

May 21, 2026

1"
Estimated 1"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Sterling, CO on May 16, 2026 Estimated-size surface
Storm date Sterling / CO

May 16, 2026

2.25"
Signatures 2.25" Estimated 1.25"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Sterling, CO on May 9, 2026 Estimated-size surface
Storm date Sterling / CO

May 9, 2026

1"
Signatures 1" Estimated 0.75"
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 6, 2026.