Hail in Guymon · Aug 15, 2026
The estimated-size surface reached 1.25" aloft; NEXRAD logged no point detections over Guymon that day. Open it on the live map to see the swath over the streets.
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Convective day · Aug 15, 2026 · noon–noon UTC
Severity
The 6th most severe storm Guymon 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
- 31 /100
- Homes exposed
- 35 /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 Guymon 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.
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.
Only the radar-estimated size surface resolved for Aug 15, 2026 — this storm produced no NEXRAD point detections over Guymon, so there is one map to show, not two.
The storm in context
Where Aug 15, 2026 sits in Guymon's hail record.
This was Guymon's 9th recorded hail day, arriving 9 days after the Aug 6, 2026 storm. By severity it ranks 6th of the 9 storms we have logged here. Radar put the day's largest stone over Guymon at 1.25" — radar-estimated size aloft.
The Aug 15, 2026 convective day was bigger than Guymon: the same system put hail over 188 other tracked cities, 4 of them in Oklahoma. Nearest: Elkhart (13 miles northwest, up to 1.25"); Rolla (21 miles north, up to 1.75"); Moscow (41 miles northeast, up to 1").
These maps are stills. In the app this date is one of 9 Guymon 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 Guymon. 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.
Damage-capable hail signal
What 1.25" hail means for Guymon roofs.
Quarter-size and larger hail can bruise asphalt mats, remove granules, and dent exposed soft metal. The mapped footprint identifies an inspection priority area — it does not identify which individual roofs, if any, sustained damage.
Radar reading · not confirmed damage
Roofing exposure
What this storm is worth to a roofer.
Potential roof exposure
$648K
Potential roof exposure — 54 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
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 $11 on top of the $150 plan.
Guymon hail history
Other storms in Guymon.
Estimated-size surface Aug 6, 2026
0.75"
Estimated-size surface Jul 3, 2026
2"
Estimated-size surface Jun 26, 2026
Estimated-size surface Jun 23, 2026
1"
Estimated-size surface Jun 12, 2026
0.75"
Estimated-size surface May 22, 2026
0.5"
Estimated-size surface May 21, 2026
0.75"
Estimated-size surface May 9, 2026
2.5"Take your next area into the field.
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