< Wisconsin Flood Warning | Effective 04/19/2026 15:28

Wisconsin Flood Warning | Effective 04/19/2026 15:28

Headline: 
Flood Warning issued April 19 at 5:28PM CDT by NWS Milwaukee/Sullivan WI
Event: 
Flood Warning
Urgency: 
Immediate
Effective: 
April 19, 2026 - 3:28pm
Expires: 
April 20, 2026 - 3:30am
Description: 
...The Flood Warning continues for the following rivers in Wisconsin...Illinois... Rock River Near Lake Koshkonong affecting Rock and Jefferson Counties. Rock River At Fort Atkinson affecting Jefferson County. Rock River At Afton affecting Rock and Winnebago Counties. Rock River At Jefferson affecting Jefferson County. Rock River At Watertown affecting Jefferson County. ROCK RIVER near LEBANON-3 E-HWY MM BRIDGE affecting Dodge County. Crawfish River At Milford affecting Jefferson County. Sugar River At Brodhead affecting Rock, Winnebago and Green Counties. * WHAT...Moderate flooding is occurring and moderate flooding is forecast. * WHERE...Rock River at Fort Atkinson. * WHEN...Until further notice. * IMPACTS...At 17.5 feet, Floodwaters partially cover low spots on Highway 106 near Rock River Park. A riverside walkway near South Water Street in downtown Fort Atkinson is closed. A few homes and businesses are surrounded by water at the end of Vets lane near the intersection of Highway 106 and Blackhawk Island Road about 1 mile southwest of Fort Atkinson. North Shore Road about 1 mile southwest of Fort Atkinson is closed. Ralph Rd impacted. Floodwaters cover fields on the east side of Fort Atkinson. * ADDITIONAL DETAILS... - At 5:00 PM CDT Sunday the stage was 17.3 feet. - Bankfull stage is 14.5 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 5:00 PM CDT Sunday was 17.3 feet. - Forecast...The river is expected to rise to a crest of 17.5 feet early tomorrow afternoon. - Flood stage is 16.0 feet. - Flood History...This crest compares to a previous crest of 17.4 feet on 09/11/2018. - 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. Additional information is available at www.weather.gov. The next statement will be issued late tonight at 530 AM CDT.
Area Description: 
Jefferson, WI
Forcast Office: 
NWS Milwaukee/Sullivan WI