Verified storm · closed
1–1.9" hail crossed Fond du Lac County, WI — September 4, 2026
Measured against the NOAA MRMS national radar feed on its 2-minute cycle — a verified event, not a forecast.
Storm stats
| County | Fond du Lac County, WI |
|---|---|
| Max hail (MESH) | 1.9" |
| Mean hail (MESH) | 1" |
| Swath area | 54 mi² (140 km²) |
| Radar cells (~1 km grid) | 157 |
| First radar detection | 2026-09-04 05:36 UTC |
| Last radar detection | 2026-09-04 07:12 UTC |
| Verified | 2026-09-04 05:37 UTC |
| Swath centroid | 43.8474, -88.3634 |
| Storm ID | sw_64fa094a |

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_64fa094a/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.
Fond du Lac County, WI — verified storm record
Swath has 8 radar-verified hail storms on record for Fond du Lac County, WI going back to June 2026, the largest measuring 3.29″. Every one was measured against NOAA MRMS radar — not estimated, and not a forecast.