Hail in Colby · Aug 20, 2026
NEXRAD logged 0 hail signatures up to 0"; the estimated-size surface reached 3.25" aloft. At 3.25" — 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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Convective day · Aug 20, 2026 · noon–noon UTC
Severity
The 3rd most severe storm Colby has seen in the last 12 months
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
- Peak hail signal
- 81 /100
- Homes exposed
- 64 /100
- Ground truth
- 0 /100
Largest radar-indicated size — a signal of damage potential, not confirmation.
How many homes sit inside the storm's footprint.
Independent storm reports filed with the NWS.
Evidence / storm surfaces
How Colby saw the hail — from two instruments
The maps here read the same storm from two angles — point detections from NEXRAD, and modeled hail size aloft. Where the two disagree is informative: it marks where estimated size outran the signatures, or trailed them.
Radar signature field Where NEXRAD flagged hail as the storm passed — point signatures from the radar, which indicate hail overhead rather than confirm what landed.
Estimated size field The modeled maximum hail size across the swath, derived from radar aloft — the largest stone the storm could have supported, which is not necessarily what reached the ground.
The storm in context
Where Aug 20, 2026 sits in Colby's hail record.
This was Colby's 16th recorded hail day, arriving 6 days after the Aug 14, 2026 storm. By severity it ranks 3rd of the 18 storms we have logged here. Radar put the day's largest stone over Colby at 3.25" — radar-estimated size aloft.
The Aug 20, 2026 convective day was bigger than Colby: the same system put hail over 640 other tracked cities, 21 of them in Kansas. Nearest: Levant (12 miles northwest, up to 2.75"); Brewster (15 miles northwest, up to 2.75"); Oakley (19 miles southeast, up to 2").
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
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.
No ground reports were filed with the National Weather Service for this storm over Colby. That is common: a report depends on someone being there to see it and take the time to call it in. The radar surfaces above are the record here — the storm was detected from above even though no one on the ground logged it.
Severe hail signal
What 3.25" hail means for Colby 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.
Potential roof exposure
$19M
Potential roof exposure — 1,580 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 8 jobs
- Illustrative work
- ~$120K
Close just 0.5% of the 1,580 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
August 2028
Claims from this storm can typically be filed until around August 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 $332 on top of the $150 plan.
Estimated-size surface Sep 10, 2026
0.5"
Estimated-size surface Sep 4, 2026
0.5"
Estimated-size surface Aug 14, 2026
0.5"
Estimated-size surface Aug 13, 2026
0.75"
Estimated-size surface Jul 30, 2026
1.75"
Estimated-size surface Jul 27, 2026
1"
Estimated-size surface Jul 9, 2026
2.5"
Estimated-size surface Jul 3, 2026
1"
Estimated-size surface Jul 1, 2026
1.75"
Estimated-size surface Jun 30, 2026
1.75"
Estimated-size surface Jun 24, 2026
0.75"
Estimated-size surface Jun 21, 2026
1.25"
Estimated-size surface Jun 20, 2026
2.5"
Estimated-size surface Jun 1, 2026
2.5"
Estimated-size surface May 29, 2026
2.25"
Estimated-size surface May 16, 2026
2.75"
Estimated-size surface Apr 11, 2026
0.75"Take your next area into the field.
See the hail, review your recommendations, and canvass with Overview on iPhone.
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