Michigan, Wisconsin Flood Warning | Effective 04/20/2026 19:04

Headline: 
Flood Warning issued April 20 at 9:04PM CDT by NWS Green Bay WI
Event: 
Flood Warning
Urgency: 
Immediate
Effective: 
April 20, 2026 - 7:04pm
Expires: 
April 21, 2026 - 10:15am
Description: 
...The Flood Warning continues for the following rivers in Wisconsin...Michigan... Menominee River near Menominee River at White Rapids Dam affecting Marinette and Menominee Counties. Menominee River near Koss affecting Marinette and Menominee Counties. Menominee River near McAllister affecting Marinette and Menominee Counties. For the Menominee River...including White Rapids Dam, Koss, McAllister...Minor to Moderate flooding is forecast. * WHAT...Minor flooding is occurring and moderate flooding is forecast. This approaches the flood of record. * WHERE...Menominee River near McAllister. * WHEN...Until further notice. * IMPACTS...At 18.0 feet, Flood waters are covering River Drive and Shore Drive west of Wallace in Menominee County, Michigan and South Park Road east of Porterfield in Marinette County. This stage compares to a flow of 24240 cubic feet per second at White Rapids Dam. * ADDITIONAL DETAILS... - At 8:00 PM CDT Monday the stage was 18.0 feet. - Bankfull stage is 12.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:00 PM CDT Monday was 18.1 feet. - Forecast...The river is expected to rise to a crest of 18.0 feet just after midnight tonight. - Flood stage is 15.0 feet. - http://www.weather.gov/safety/flood
Instruction: 
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Motorists should not attempt to drive around barricades or drive cars through flooded areas. Additional information is available at www.weather.gov/grb The next statement will be issued Tuesday afternoon by 1215 PM CDT.
Area Description: 
Menominee, MI; Marinette, WI
Forcast Office: 
NWS Green Bay WI