Verified storm · closed
1.1–1.2" hail crossed Winnebago County, IA — September 2, 2026
Measured against the NOAA MRMS national radar feed on its 2-minute cycle — a verified event, not a forecast.
Storm stats
| County | Winnebago County, IA |
|---|---|
| Max hail (MESH) | 1.2" |
| Mean hail (MESH) | 1.1" |
| Swath area | 8.7 mi² (23 km²) |
| Radar cells (~1 km grid) | 25 |
| First radar detection | 2026-09-02 08:32 UTC |
| Last radar detection | 2026-09-02 09:36 UTC |
| Verified | 2026-09-02 08:34 UTC |
| Swath centroid | 43.3478, -93.6986 |
| Storm ID | sw_fc95e75a |
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_fc95e75a/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.
Winnebago County, IA — verified storm record
Swath has 8 radar-verified hail storms on record for Winnebago County, IA going back to July 2025, the largest measuring 2.13″. Every one was measured against NOAA MRMS radar — not estimated, and not a forecast.