/ Storm field report · Logan

Hail in Sterling · Jun 22, 2026

The estimated-size surface reached 2.75" aloft; NEXRAD logged no point detections over Sterling that day. At 2.75" — baseball — 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 2.75" ≈ baseball · radar-estimated size aloft
Homes in the hail footprint 9,615
Ground reports 9 6 hail · 3 wind
Radar surfaces 1 Estimated size only

Convective day · Jun 22, 2026 · noon–noon UTC

Severity

The 2nd most severe storm Sterling has seen in the last 12 months

Composite score · 7.6 / 10
Storm severity score

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

7.6 /10
Peak hail signal
69 /100

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

Homes exposed
80 /100

How many homes sit inside the storm's footprint.

Ground truth
100 /100

Independent storm reports filed with the NWS.

Evidence / storm surfaces

How Sterling saw the hail — from two instruments

Jun 22, 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 Jun 22, 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 2.75"

Only the radar-estimated size surface resolved for Jun 22, 2026 — this storm produced no NEXRAD point detections over Sterling, so there is one map to show, not two.

The storm in context

Where Jun 22, 2026 sits in Sterling's hail record.

This was Sterling's 11th recorded hail day, arriving 1 day after the Jun 21, 2026 storm. By severity it ranks 2nd of the 24 storms we have logged here. Radar put the day's largest stone over Sterling at 2.75" — radar-estimated size aloft.

The Jun 22, 2026 convective day was bigger than Sterling: the same system put hail over 258 other tracked cities, 22 of them in Colorado. Nearest: Atwood (11 miles south, up to 2.75"); Otis (19 miles southeast, up to 2.75"); Merino (21 miles southwest, up to 1.25").

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

9 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.

Hail reports

6 reports
Hail size 3"
6 WSW North Sterling Re Logan County

“(BOU)”

— NOAA / SPC storm report
Hail size 1.75"
1 S Atwood Logan County

“(BOU)”

— NOAA / SPC storm report
Hail size 3"
4 W Sterling Logan County

“(BOU)”

— NOAA / SPC storm report
Hail size 2.5"
1 S Sterling Logan County

“(BOU)”

— NOAA / SPC storm report
Hail size 2.5"
2 SSE Sterling Logan County

“(BOU)”

— NOAA / SPC storm report
Hail size 1.75"
1 NE Sterling Logan County

“(BOU)”

— NOAA / SPC storm report

Wind reports

3 reports
Wind gust 59 mph
2 ESE Sterling Logan County

“(BOU)”

— NOAA / SPC storm report
Wind gust 60 mph
1 NNE Atwood Logan County

“(BOU)”

— NOAA / SPC storm report
Wind gust 62 mph
Atwood Logan County

“(BOU)”

— NOAA / SPC storm report

Storm forensics

How the storm moved

Timing and place names from NOAA ground reports

Read from the arrival times and locations of the NOAA ground reports, not a radar-measured storm track.

The storm tracked south at roughly 20 mph, based on the timing of ground reports.

Hail was reported over 45 minutes, from to .

Reports came from North Sterling Re and Atwood — beyond Sterling itself.

Severe hail signal

What 2.75" 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.

9,615 homes × $12,000 avg. claim

Potential roof exposure

$115M

Potential roof exposure — 9,615 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.

Illustrative jobs
48 jobs
Illustrative work
~$720K

Close just 0.5% of the 9,615 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

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 $2,019 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 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 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.