Lightning — Kewaunee, Wisconsin

2025-08-09 · near Rosiere, Kewaunee, Wisconsin

Event narrative

A house was struck by lightning and started on fire. The fire produced around $125,000 worth of damage.

Wider weather episode

A weakening line of showers and thunderstorms produced hail across portions of central Wisconsin during the morning on Saturday (8/09).

A stronger line of thunderstorms developed during the afternoon and tracked through central, east-central Wisconsin and the lakeshore ahead of an approaching cold front. These storms produced widespread wind damage with Door County included in a disaster declaration due to the significant storm damage. The Door County Emergency Manager indicated there was $431,938 worth of damage and debris clean up across central and northern Door County. Egg Harbor and Ephraim experienced significant damage, with Sister Bay and Baileys Harbor notably affected.

The storms also produced a weak, brief tornado in Peninsula State Park (Door Co.) with lightning causing a house fire and significant damage to a home in Casco (Kewaunee Co.), producing around $125,000 worth of damage. In total, this event produced over a half a million worth of damage.

View location on OpenStreetMap → (44.6600, -87.6300)

Source: NOAA Storm Events Database, event_id 1280949. Narrative written by the NWS forecast office that issued the report.