Wind gust 74 mph
Wewela Tripp County
“(UNR)”
— NOAA / SPC storm report
/ Storm field report · Tripp
Hail in Winner · Aug 11, 2026
Hit 32 days ago
NEXRAD logged 0 hail signatures up to 0"; the estimated-size surface reached 2" aloft. At 2" — tennis ball — this is a severe hail signal associated with roof damage. Open it on the live map to see the swath over the streets.
7-day free trial in the iPhone app. No card required to start.
For iPhone. Android coming soon.
Web trial: 7 days free. Card required. $150/month after the trial unless cancelled.
Peak hail signal 2" ≈ tennis ball · radar-estimated size aloft
Homes in the hail footprint 3,192
Ground reports 7 7 wind
Radar surfaces 2 NEXRAD + estimated size
Convective day · Aug 11, 2026 · noon–noon UTC
Severity
The 2nd most severe storm Winner has seen in the last 12 months
Composite score · 6.3 / 10
Storm severity score
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
6.3 /10
- Peak hail signal
- 50 /100
- Homes exposed
- 70 /100
- Ground truth
- 100 /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
Aug 11, 2026 · Winner, SD
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.
NEXRAD radar signatures Surface resolved
Radar signature field The point detections NEXRAD recorded overhead. Each signature marks where the radar saw hail aloft — it is a detection, not a stone measured on the ground.
Max size
0"
Detections
0
Radar-estimated hail size Surface resolved
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.
Max size
2"
The storm in context
Where Aug 11, 2026 sits in Winner's hail record.
This was Winner's 13th recorded hail day, arriving 5 days after the Aug 6, 2026 storm. By severity it ranks 2nd of the 15 storms we have logged here. Radar put the day's largest stone over Winner at 2" — radar-estimated size aloft.
The Aug 11, 2026 convective day was bigger than Winner: the same system put hail over 1,041 other tracked cities, 44 of them in South Dakota. Nearest: Colome (23 miles southwest, up to 1.5"); Mills (39 miles south, up to 1"); Springview (40 miles south, up to 1.5").
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
7 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.
Wind reports
7 reports Wind gust 83 mph
Wewela Tripp County
“(UNR)”
— NOAA / SPC storm report
Wind gust 77 mph
Wewela Tripp County
“(UNR)”
— NOAA / SPC storm report
Wind gust 76 mph
Wewela Tripp County
“(UNR)”
— NOAA / SPC storm report
Wind gust 79 mph
4 ENE Sparks Cherry County
“(LBF)”
— NOAA / SPC storm report
Wind gust 80 mph
4 NE Sparks Cherry County
“(LBF)”
— NOAA / SPC storm report
Wind gust 62 mph
4 NE Sparks Cherry County
“(LBF)”
— NOAA / SPC storm report
Storm forensics
How the storm moved
Timing and place names from NOAA ground reports
Read from the arrival times and locations of the NOAA ground reports, not a radar-measured storm track.
The storm tracked east at roughly 25 mph, based on the timing of ground reports.
Hail was reported over 55 minutes, from to .
Reports came from Wewela and Sparks — beyond Winner itself.
Severe hail signal
What 2" hail means for Winner 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.
3,192 homes × $12,000 avg. claim
Potential roof exposure
$38M
Potential roof exposure — 3,192 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 16 jobs
- Illustrative work
- ~$240K
Close just 0.5% of the 3,192 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 $670 on top of the $150 plan.
Winner hail history
Other storms in Winner.
15 recorded storm days in Winner, SD
Estimated-size surface Storm date Winner / SD
Aug 19, 2026
0.75" Estimated 0.75"
No ground reports filed Open report →
Estimated-size surface Storm date Winner / SD
Aug 18, 2026
1.25" Estimated 1.25"
No ground reports filed Open report →
Estimated-size surface Storm date Winner / SD
Aug 6, 2026
0.5" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Winner / SD
Jul 30, 2026
1.25" Signatures 1.25" Estimated 0.75"
1 ground report Open report →
Estimated-size surface Storm date Winner / SD
Jul 29, 2026
1" Signatures 1" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Winner / SD
Jul 25, 2026
1.25" Signatures 1.25" Estimated 0.75"
No ground reports filed Open report →
Estimated-size surface Storm date Winner / SD
Jul 19, 2026
0.75" Estimated 0.75"
No ground reports filed Open report →
Estimated-size surface Storm date Winner / SD
Jul 6, 2026
3.25" Signatures 3.25" Estimated 1.75"
1 ground report Open report →
Estimated-size surface Storm date Winner / SD
Jul 2, 2026
1" Signatures 1" Estimated 0.75"
No ground reports filed Open report →
Estimated-size surface Storm date Winner / SD
Jun 30, 2026
1" Signatures 1" Estimated 0.75"
No ground reports filed Open report →
Estimated-size surface Storm date Winner / SD
Jun 27, 2026
1.75" Signatures 1.75" Estimated 1"
1 ground report Open report →
Estimated-size surface Storm date Winner / SD
Jun 4, 2026
2.5" Signatures 2.5" Estimated 2"
No ground reports filed Open report →
Estimated-size surface Storm date Winner / SD
Jun 3, 2026
3.75" Signatures 3.75" Estimated 2.25"
6 ground reports Open report →
Estimated-size surface Storm date Winner / SD
Jun 2, 2026
1" Signatures 1" Estimated 0.5"
No ground reports filed Open report →
Take your next area into the field.
See the hail, review your recommendations, and canvass with Overview on iPhone.
7-day free trial in the iPhone app. No card required to start.
For iPhone. Android coming soon.
Web trial: 7 days free. Card required. $150/month after the trial unless cancelled.
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 Aug 20, 2026.