Hail in Winner · Aug 18, 2026
The estimated-size surface reached 1.25" aloft; NEXRAD logged no point detections over Winner that day. Open it on the live map to see the swath over the streets.
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Convective day · Aug 18, 2026 · noon–noon UTC
Severity
The 6th most severe storm Winner 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
- 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 Winner saw the hail — from two instruments
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.
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.
Only the radar-estimated size surface resolved for Aug 18, 2026 — this storm produced no NEXRAD point detections over Winner, so there is one map to show, not two.
The storm in context
Where Aug 18, 2026 sits in Winner's hail record.
This was Winner's 14th recorded hail day, arriving 7 days after the Aug 11, 2026 storm. By severity it ranks 6th of the 15 storms we have logged here. Radar put the day's largest stone over Winner at 1.25" — radar-estimated size aloft.
The Aug 18, 2026 convective day was bigger than Winner: the same system put hail over 309 other tracked cities, 8 of them in South Dakota. Nearest: Springview (40 miles south, up to 1"); Wood (46 miles west, up to 0.75"); White River (62 miles west, up to 0.5").
These maps are stills. In the app this date is one of 15 Winner 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.
Nobody on the ground filed a report over Winner 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.
Damage-capable hail signal
What 1.25" hail means for Winner 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
$20M
Potential roof exposure — 1,645 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 1,645 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 $345 on top of the $150 plan.
Winner hail history
Other storms in Winner.
Estimated-size surface Aug 19, 2026
0.75"
Estimated-size surface Aug 11, 2026
2"
Estimated-size surface Aug 6, 2026
0.5"
Estimated-size surface Jul 30, 2026
1.25"
Estimated-size surface Jul 29, 2026
1"
Estimated-size surface Jul 25, 2026
1.25"
Estimated-size surface Jul 19, 2026
0.75"
Estimated-size surface Jul 6, 2026
3.25"
Estimated-size surface Jul 2, 2026
1"
Estimated-size surface Jun 30, 2026
1"
Estimated-size surface Jun 27, 2026
1.75"
Estimated-size surface Jun 4, 2026
2.5"
Estimated-size surface Jun 3, 2026
3.75"
Estimated-size surface Jun 2, 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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