Verified storm · active
1.1–2.7" hail crossed Clearwater County, MN — September 3, 2026
Measured against the NOAA MRMS national radar feed on its 2-minute cycle — a verified event, not a forecast.
Storm stats
| County | Clearwater County, MN |
|---|---|
| Max hail (MESH) | 2.7" |
| Mean hail (MESH) | 1.1" |
| Swath area | 348 mi² (902 km²) |
| Radar cells (~1 km grid) | 1,070 |
| First radar detection | 2026-09-03 20:32 UTC |
| Last radar detection | 2026-09-03 23:38 UTC |
| Verified | 2026-09-03 20:34 UTC |
| Swath centroid | 47.1745, -95.4969 |
| Storm ID | sw_ad99d503 |
Free address check
Was your address under this swath?
Enter any US address — we check it against every storm we've verified, this one included. Free, no login, storm history only.
US ADDRESSES · GEOCODED VIA US CENSUS · FULL HISTORY TOOL →
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_ad99d503/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.
Clearwater County, MN — verified storm record
Swath has 10 radar-verified hail storms on record for Clearwater County, MN going back to July 2025, the largest measuring 2.68″. Every one was measured against NOAA MRMS radar — not estimated, and not a forecast.
