Hail in Stillwater · Aug 21, 2026
The estimated-size surface reached 1.75" aloft; NEXRAD logged no point detections over Stillwater that day. Open it on the live map to see the swath over the streets.
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Convective day · Aug 21, 2026 · noon–noon UTC
Severity
The 3rd most severe storm Stillwater 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
- 44 /100
- Homes exposed
- 68 /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 Stillwater saw the hail — from two instruments
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.
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.
Only the radar-estimated size surface resolved for Aug 21, 2026 — this storm produced no NEXRAD point detections over Stillwater, so there is one map to show, not two.
The storm in context
Where Aug 21, 2026 sits in Stillwater's hail record.
This was Stillwater's 9th recorded hail day, arriving 4 days after the Aug 17, 2026 storm. By severity it ranks 3rd of the 10 storms we have logged here. Radar put the day's largest stone over Stillwater at 1.75" — radar-estimated size aloft.
The Aug 21, 2026 convective day was bigger than Stillwater: the same system put hail over 659 other tracked cities, 9 of them in Oklahoma. Nearest: Perry (9 miles northwest, up to 1.5"); Ponca City (28 miles north, up to 0.5"); Chandler (30 miles south, up to 0.5").
These maps are stills. In the app this date is one of 10 Stillwater 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.
For this storm over Stillwater, 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.
High damage potential
What 1.75" hail means for Stillwater roofs.
Hail around an inch and a half is capable of cracking shingles, stripping granules, and denting gutters, vents, and siding. Risk is usually greatest near the strongest radar signal, but property-level damage still requires an on-site inspection.
Radar reading · not confirmed damage
Roofing exposure
What this storm is worth to a roofer.
Potential roof exposure
$31M
Potential roof exposure — 2,621 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 13 jobs
- Illustrative work
- ~$195K
Close just 0.5% of the 2,621 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 $550 on top of the $150 plan.
Stillwater hail history
Other storms in Stillwater.
Estimated-size surface Aug 22, 2026
0.75"
Estimated-size surface Aug 17, 2026
1.25"
Estimated-size surface Aug 16, 2026
1"
Estimated-size surface Jul 4, 2026
1"
Estimated-size surface Jun 26, 2026
2.5"
Estimated-size surface Jun 21, 2026
1"
Estimated-size surface May 8, 2026
1.75"
Estimated-size surface Apr 23, 2026
1.75"
Estimated-size surface Apr 17, 2026
1"Take your next area into the field.
See the hail, review your recommendations, and canvass with Overview on iPhone.
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