Verified storm · closed
1.2–2" hail crossed Watonwan County, MN — August 9, 2026
Measured against the NOAA MRMS national radar feed on its 2-minute cycle — a verified event, not a forecast.
Storm stats
| County | Watonwan County, MN |
|---|---|
| Max hail (MESH) | 2" |
| Mean hail (MESH) | 1.2" |
| Swath area | 32 mi² (82 km²) |
| Radar cells (~1 km grid) | 92 |
| First radar detection | 2026-08-09 01:42 UTC |
| Last radar detection | 2026-08-09 03:32 UTC |
| Verified | 2026-08-09 01:44 UTC |
| Swath centroid | 44.0315, -94.6741 |
| Storm ID | sw_0a845235 |
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_0a845235/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.
Watonwan County, MN — verified storm record
Swath has 9 radar-verified hail storms on record for Watonwan County, MN going back to September 2025, the largest measuring 2.36″. Every one was measured against NOAA MRMS radar — not estimated, and not a forecast.
