< Wisconsin Flood Warning | Effective 04/18/2026 20:17

Wisconsin Flood Warning | Effective 04/18/2026 20:17

Headline: 
Flood Warning issued April 18 at 10:17PM CDT until April 24 at 9:00AM CDT by NWS Milwaukee/Sullivan WI
Event: 
Flood Warning
Urgency: 
Immediate
Effective: 
April 18, 2026 - 8:17pm
Expires: 
April 19, 2026 - 8:30am
Description: 
...The Flood Warning continues for the following rivers in Wisconsin... Wisconsin River At Portage affecting Columbia County. Baraboo River Near Baraboo affecting Columbia and Sauk Counties. Fox River Near Berlin affecting Green Lake County. * WHAT...Major flooding is occurring and moderate flooding is forecast. * WHERE...Wisconsin River at Portage. * WHEN...Until late Friday morning. * IMPACTS...At 19.5 feet, Floodwaters are over Wood Street in Portage and a low spot on Thunderbird Road. Water comes up through ground at Sunset and Franklin. Floodwaters affect River Shores Road in the Town of Lewiston, River Oaks Road in the Town of Dekorra, and Levee Road in the Portage area, and numerous roads in the Blackhawk Park area about 3 miles south of Portage. Some water on Summit St near boat landing. Water over Conant St. * ADDITIONAL DETAILS... - At 7:30 PM CDT Saturday the stage was 19.3 feet. - Bankfull stage is 12.7 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 7:30 PM CDT Saturday was 20.0 feet. - Forecast...The river is expected to fall below flood stage early Friday morning and continue falling to 15.4 feet Saturday, April 25. - Flood stage is 17.0 feet. - Flood History...This crest compares to a previous crest of 19.4 feet on 04/14/2011. - http://www.weather.gov/safety/flood
Instruction: 
Motorists should not attempt to drive around barricades or drive cars through flooded areas. Even 6 inches of fast-moving flood water can knock you off your feet and a depth of 2 feet will float your car. Never try to walk, swim, or drive through such swift water. If you come upon flood waters, stop, turn around and go another way. 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 Sunday morning at 1030 AM CDT.
Area Description: 
Columbia, WI
Forcast Office: 
NWS Milwaukee/Sullivan WI