Wisconsin Severe Flood Watch | Effective 09/20/2026 01:37

Headline: 
Flood Watch issued September 20 at 3:37AM CDT until September 20 at 7:00AM CDT by NWS Milwaukee/Sullivan WI
Event: 
Flood Watch
Urgency: 
Future
Effective: 
September 20, 2026 - 1:37am
Expires: 
September 20, 2026 - 5:00am
Description: 
* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of south central and southeast Wisconsin, including the following counties, in south central Wisconsin, Dane, Green, Iowa, Lafayette and Rock. In southeast Wisconsin, Jefferson, Kenosha, Milwaukee, Racine, Walworth and Waukesha. * WHEN...Until 7 AM CDT this morning. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - Rounds of showers and some thunderstorms may move repeatedly over the same areas across far southern Wisconsin early this morning. This may bring another 1 to 2 inches of rainfall, with locally higher amounts possible. Urban and small stream flooding, river and creek rises and isolated flash flooding are possible where rain moves repeatedly over the same areas. - http://www.weather.gov/safety/flood
Instruction: 
You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.
Area Description: 
Iowa; Dane; Jefferson; Waukesha; Milwaukee; Lafayette; Green; Rock; Walworth; Racine; Kenosha
Forcast Office: 
NWS Milwaukee/Sullivan WI
Sender: 
w-nws.webmaster@noaa.gov