Severe · Flash Flood WarningActive alert
Flash Flood Warning issued September 3 at 10:14AM CDT until September 3
Affecting Milwaukee, WI; Ozaukee, WI; Washington, WI; Waukesha, WI
In effect until: Sep 3, 2026, 5:15 PM
Milwaukee, WI; Ozaukee, WI; Washington, WI; Waukesha, WI
Likely impact across 4 counties in WI; effects through 5:15 PM.
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.
Read the original bulletin (official text)
At 1014 AM CDT, Doppler radar indicates another are of heavy rain over northeast Waukesha County moving east. Between 1.5 and 2 inches of rain have fallen. Additional rainfall amounts of 0.5 to 1 inch are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar indicated. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. Some locations that will experience flash flooding include... Northern Milwaukee, Wauwatosa, Brookfield, Menomonee Falls, Mequon, Whitefish Bay, Pewaukee, Brown Deer, Sussex, Fox Point, Bayside, Thiensville, Germantown, Glendale, Butler, River Hills, Lannon, Shorewood and Colgate.
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Alert data: U.S. National Weather Service / NOAA · Translation: WeatherTranslate™