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Flash Flood — Waukesha, WI

Jul 9, 2006

A complicated weather scenario developed during the late afternoon and early evening of July 9th. A cold front pushing east into southwestern Wisconsin produced slow moving scattered thunderstorms across south-central Wisconsin as a lake breeze pushed west into the counties of Washington, eastern Waukesha and Racine. This resulted in more slow moving thunderstorms. Some of the storms across south-central Wisconsin pulsed to severe levels producing up to half-dollar sized hail (1.25" in diamet

Source: NOAA National Weather Service Storm Events Database (event 5519665). Narrative written by NWS staff at the time of the event.

Flood Risk Context for Waukesha, WI

This event is one of many recorded floods in Waukesha County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.

View Waukesha County flood data →

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