Flood Warning Wisconsin | Effective 04/05/2026 20:58

Headline: 
Flood Warning issued April 5 at 10:58PM CDT until April 10 at 10:00AM CDT by NWS Milwaukee/Sullivan WI
Event: 
Flood Warning
Urgency: 
Expected
Effective: 
April 5, 2026 - 8:58pm
Expires: 
April 6, 2026 - 9:00am
Description: 
...The National Weather Service in Milwaukee/Sullivan WI has issued a Flood Warning for the following rivers in Wisconsin... Wisconsin River At Portage affecting Columbia County. * WHAT...Moderate flooding is forecast. * WHERE...Wisconsin River at Portage. * WHEN...From Monday morning to late Friday morning. * IMPACTS...At 18.5 feet, Floodwaters affect River Shores Road about 3 miles upstream of Portage in the Town of Lewiston and River Oaks Road about 7 miles downstream of Portage in the Town of Dekorra in Columbia County. Water over Levee Rd and Tritz Rd. There is widespread flooding of roads in the Blackhawk Park Area including West Lake Road...Blackhawk Road and Wood Street. The Blackhawk Park area is on the south side of the river about 3 miles south of Portage. * ADDITIONAL DETAILS... - At 11:00 AM CDT Sunday the stage was 15.3 feet. - Bankfull stage is 12.7 feet. - Forecast...The river is expected to rise above flood stage late tomorrow morning to a crest of 18.3 feet early Wednesday morning. It will then fall below flood stage early Friday morning. - Flood stage is 17.0 feet. - Flood History...This crest compares to a previous crest of 18.3 feet on 05/22/2017. - http://www.weather.gov/safety/flood
Instruction: 
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Additional information is available at www.weather.gov. The next statement will be issued Monday morning at 1100 AM CDT.
Area Description: 
Columbia, WI
Forcast Office: 
NWS Milwaukee/Sullivan WI
Sender: 
w-nws.webmaster@noaa.gov