/ Storm field report · Logan

Hail in Sterling · Jun 4, 2026

NEXRAD logged 6 hail signatures up to 0.75"; the estimated-size surface had no signal 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 · the largest NEXRAD radar signature
Homes in the hail footprint 72
Ground reports 0 none filed
Radar surfaces 1 NEXRAD only

Convective day · Jun 4, 2026 · noon–noon UTC

Severity

The 16th most severe storm Sterling has seen in the last 12 months

Composite score · 2.1 / 10
Storm severity score

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

2.1 /10
Peak hail signal
19 /100

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

Homes exposed
37 /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 Sterling saw the hail — from two instruments

Jun 4, 2026 · Sterling, CO

Two instruments, one storm: NEXRAD logs the point signatures it detected overhead, while the estimated-size surface models how large the hail aloft could have grown. Agreement between them is not guaranteed — the gaps are where the model ran ahead of, or behind, the detections.

NEXRAD radar signatures Surface resolved
NEXRAD radar-signature map of the hail storm over Sterling, CO on Jun 4, 2026 Radar signature field

NEXRAD's hail signatures for this storm: the spots the radar detected from above. A detection overhead is not the same thing as a confirmed stone below.

Max size 0.75" Detections 6

Only the NEXRAD radar-signature surface resolved for Jun 4, 2026 — the estimated-size swath had no hail signal to model for this storm, so there is one map to show, not two.

The storm in context

Where Jun 4, 2026 sits in Sterling's hail record.

This was Sterling's 7th recorded hail day, arriving 3 days after the Jun 1, 2026 storm. By severity it ranks 16th of the 24 storms we have logged here. Radar put the day's largest stone over Sterling at 0.75" — the largest NEXRAD radar signature.

The Jun 4, 2026 convective day was bigger than Sterling: the same system put hail over 241 other tracked cities. Nearest: Sidney (31 miles north, up to 1"); Gurley (46 miles north, up to 1.75"); Lodgepole (48 miles northeast, up to 1.75").

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

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 Sterling, 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 Sterling 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.

72 homes × $12,000 avg. claim

Potential roof exposure

$864K

Potential roof exposure — 72 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.

Claim window

June 2028

Claims from this storm can typically be filed until around June 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 $15 on top of the $150 plan.

Sterling hail history

24 recorded storm days in Sterling, CO
Radar-estimated hail-size map of the storm over Sterling, CO on Sep 5, 2026 Estimated-size surface
Storm date Sterling / CO

Sep 5, 2026

2"
Estimated 2"
1 ground report Open report →
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 →
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.