/ Storm field report · Thomas

Hail in Colby · Sep 10, 2026

Hit 2 days ago

The estimated-size surface reached 0.5" aloft; NEXRAD logged no point detections over Colby that day. Open it on the live map to see the swath over the streets.

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Peak hail signal 0.5" ≈ pea to penny · radar-estimated size aloft
Homes in the hail footprint 22
Ground reports 0 none filed
Radar surfaces 1 Estimated size only

Convective day · Sep 10, 2026 · noon–noon UTC

Severity

The 17th most severe storm Colby has seen in the last 12 months

Composite score · 1.4 / 10
Storm severity score

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

1.4 /10
Peak hail signal
13 /100

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

Homes exposed
27 /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 Colby saw the hail — from two instruments

Sep 10, 2026 · Colby, KS

We map this storm two ways: the NEXRAD radar signatures the storm produced overhead, and the radar-estimated size of the hail in the air. The two surfaces don’t have to match — where they diverge is where estimated size aloft ran ahead of, or behind, what the signatures caught.

Radar-estimated hail size Surface resolved
Radar-estimated hail-size map of the storm over Colby, KS on Sep 10, 2026 Estimated size field

Maximum hail size as estimated from radar aloft. Treat it as the storm's ceiling — the largest supportable stone — rather than a ground measurement.

Max size 0.5"

Only the radar-estimated size surface resolved for Sep 10, 2026 — this storm produced no NEXRAD point detections over Colby, so there is one map to show, not two.

The storm in context

Where Sep 10, 2026 sits in Colby's hail record.

This was Colby's 18th recorded hail day, arriving 6 days after the Sep 4, 2026 storm. By severity it ranks 17th of the 18 storms we have logged here. Radar put the day's largest stone over Colby at 0.5" — radar-estimated size aloft.

The Sep 10, 2026 convective day was bigger than Colby: the same system put hail over 94 other tracked cities. Nearest: Panhandle (281 miles south, up to 1"); Amarillo (293 miles south, up to 2.25"); Canyon (299 miles south, up to 2.25").

These maps are stills. In the app this date is one of 18 Colby 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.

Nobody on the ground filed a report over Colby for this date, which says more about who was watching than about the storm: spotter reports only exist where there is an observer. The radar surfaces above carry the evidence for this one.

Below the severe threshold

What 0.5" hail means for Colby roofs.

Radar signals under three-quarters of an inch stay below the National Weather Service severe threshold and generally indicate lower roof risk. Older or already-worn materials can still show effects, but radar alone cannot determine whether a specific roof was damaged.

Radar reading · not confirmed damage

Roofing exposure

What this storm is worth to a roofer.

22 homes × $12,000 avg. claim

Potential roof exposure

$264K

Potential roof exposure — 22 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.

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 $5 on top of the $150 plan.

Colby hail history

18 recorded storm days in Colby, KS
Radar-estimated hail-size map of the storm over Colby, KS on Sep 4, 2026 Estimated-size surface
Storm date Colby / KS

Sep 4, 2026

0.5"
Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Colby, KS on Aug 20, 2026 Estimated-size surface
Storm date Colby / KS

Aug 20, 2026

3.25"
Estimated 3.25"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Colby, KS on Aug 14, 2026 Estimated-size surface
Storm date Colby / KS

Aug 14, 2026

0.5"
Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Colby, KS on Aug 13, 2026 Estimated-size surface
Storm date Colby / KS

Aug 13, 2026

0.75"
Estimated 0.75"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Colby, KS on Jul 30, 2026 Estimated-size surface
Storm date Colby / KS

Jul 30, 2026

1.75"
Signatures 1.75" Estimated 1"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Colby, KS on Jul 27, 2026 Estimated-size surface
Storm date Colby / KS

Jul 27, 2026

1"
Signatures 1" Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Colby, KS on Jul 9, 2026 Estimated-size surface
Storm date Colby / KS

Jul 9, 2026

2.5"
Signatures 2.5" Estimated 2.25"
1 ground report Open report →
Radar-estimated hail-size map of the storm over Colby, KS on Jul 3, 2026 Estimated-size surface
Storm date Colby / KS

Jul 3, 2026

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

Jul 1, 2026

1.75"
Signatures 1.75" Estimated 1.5"
3 ground reports Open report →
Radar-estimated hail-size map of the storm over Colby, KS on Jun 30, 2026 Estimated-size surface
Storm date Colby / KS

Jun 30, 2026

1.75"
Signatures 1.75" Estimated 1"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Colby, KS on Jun 24, 2026 Estimated-size surface
Storm date Colby / KS

Jun 24, 2026

0.75"
Estimated 0.75"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Colby, KS on Jun 21, 2026 Estimated-size surface
Storm date Colby / KS

Jun 21, 2026

1.25"
Estimated 1.25"
1 ground report Open report →
Radar-estimated hail-size map of the storm over Colby, KS on Jun 20, 2026 Estimated-size surface
Storm date Colby / KS

Jun 20, 2026

2.5"
Estimated 2.5"
10 ground reports Open report →
Radar-estimated hail-size map of the storm over Colby, KS on Jun 1, 2026 Estimated-size surface
Storm date Colby / KS

Jun 1, 2026

2.5"
Signatures 2.5" Estimated 1.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Colby, KS on May 29, 2026 Estimated-size surface
Storm date Colby / KS

May 29, 2026

2.25"
Signatures 2.25" Estimated 1.25"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Colby, KS on May 16, 2026 Estimated-size surface
Storm date Colby / KS

May 16, 2026

2.75"
Signatures 2.75" Estimated 2.25"
10 ground reports Open report →
Radar-estimated hail-size map of the storm over Colby, KS on Apr 11, 2026 Estimated-size surface
Storm date Colby / KS

Apr 11, 2026

0.75"
Signatures 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 11, 2026.