Verified storm · closed
81 mph wind verified in Sully County, SD — July 25, 2026
Verified against measured NWS storm reports — ground-truth wind measurements, not radar hail estimates, and never forecasts.
Storm stats
| County | Sully County, SD |
|---|---|
| Max wind (NWS reports) | 81 mph |
| Swath area | 30 mi² (78 km²) |
| First radar detection | 2026-07-25 22:15 UTC |
| Last radar detection | 2026-07-25 22:26 UTC |
| Verified | 2026-07-25 22:40 UTC |
| Swath centroid | 44.5700, -99.7750 |
| Storm ID | sw_577836d4 |
Address lookup — $8
Was your address under this swath?
Enter any US address — we build the full radar-verified report, this storm included, with hail sizes measured at the address. $8 one-time; the industry charges $14.95–$30 for a 3-mile-radius answer.
US ADDRESSES · GEOCODED VIA US CENSUS · WHY $8 WHEN OTHERS CHARGE $30 →
Every roof under this swath, one API call.
Get the property list for this storm — every affected parcel with roof age, owner-occupancy, and measured hail exposure. Free API key, 2 free trial credits, no card.
curl "https://swathapi.com/v1/swaths/sw_577836d4/properties?roof_age_min=10" \ -H "Authorization: Bearer sk_..."
ASK CLAUDE OR CHATGPT ABOUT THIS STORM — SWATH WORKS INSIDE YOUR AI. CONNECT THE MCP SERVER
Want this every morning?
The Daily Swath — every verified storm, mapped, in your inbox at 9am ET.
Sully County, SD — verified storm record
Swath has 12 radar-verified hail storms on record for Sully County, SD going back to July 2025, the largest measuring 3.33″. Every one was measured against NOAA MRMS radar — not estimated, and not a forecast.
