Wind gust 84 mph
2 E Cottonwood Jackson County
“(UNR)”
— NOAA / SPC storm report
/ Storm field report · Haakon
Hail in Quinn · Aug 11, 2026
Hit 32 days ago
The estimated-size surface reached 2.5" aloft; NEXRAD logged no point detections over Quinn that day. At 2.5" — 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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Peak hail signal 2.5" ≈ baseball · radar-estimated size aloft
Homes in the hail footprint 880
Ground reports 1 1 wind
Radar surfaces 1 Estimated size only
Convective day · Aug 11, 2026 · noon–noon UTC
Severity
The most severe storm Quinn has seen in the last 12 months
Composite score · 5.5 / 10
Storm severity score
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
5.5 /10
- Peak hail signal
- 63 /100
- Homes exposed
- 59 /100
- Ground truth
- 17 /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 Quinn saw the hail — from two instruments
Aug 11, 2026 · Quinn, 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.
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
2.5"
Only the radar-estimated size surface resolved for Aug 11, 2026 — this storm produced no NEXRAD point detections over Quinn, so there is one map to show, not two.
The storm in context
Where Aug 11, 2026 sits in Quinn's hail record.
This was Quinn's 8th recorded hail day, arriving 13 days after the Jul 29, 2026 storm. By severity it ranks 1st of the 8 storms we have logged here. Radar put the day's largest stone over Quinn at 2.5" — radar-estimated size aloft.
The Aug 11, 2026 convective day was bigger than Quinn: the same system put hail over 1,041 other tracked cities, 44 of them in South Dakota. Nearest: Wall (10 miles west, up to 2.75"); Philip (18 miles east, up to 1.5"); Wasta (23 miles west, up to 2.25").
These maps are stills. In the app this date is one of 8 Quinn 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
1 report 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
1 reportStorm 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.
Reports came from Cottonwood — beyond Quinn itself.
Severe hail signal
What 2.5" hail means for Quinn 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.
880 homes × $12,000 avg. claim
Potential roof exposure
$11M
Potential roof exposure — 880 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 4 jobs
- Illustrative work
- ~$60K
Close just 0.5% of the 880 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 $185 on top of the $150 plan.
Estimated-size surface Storm date Quinn / SD
Jul 29, 2026
1" Signatures 1" Estimated 0.5"
1 ground report Open report →
Estimated-size surface Storm date Quinn / SD
Jul 7, 2026
1" Signatures 1" Estimated 0.75"
No ground reports filed Open report →
Estimated-size surface Storm date Quinn / SD
Jul 2, 2026
1.75" Signatures 1.75" Estimated 1.25"
1 ground report Open report →
Estimated-size surface Storm date Quinn / SD
Jun 28, 2026
1.75" Signatures 1.75" Estimated 1.5"
No ground reports filed Open report →
Estimated-size surface Storm date Quinn / SD
Jun 27, 2026
1.75" Signatures 1.75" Estimated 1.5"
2 ground reports Open report →
Estimated-size surface Storm date Quinn / SD
Jun 26, 2026
1" Signatures 1" Estimated 0.75"
No ground reports filed Open report →
Estimated-size surface Storm date Quinn / SD
May 30, 2026
1" Signatures 1" Estimated 0.5"
No ground reports filed Open report →
Take your next area into the field.
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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 12, 2026.