Illinois, Wisconsin Flood Warning | Effective 04/18/2026 10:33

Headline: 
Flood Warning issued April 18 at 12:33PM CDT until April 20 at 8:30AM CDT by NWS Milwaukee/Sullivan WI
Event: 
Flood Warning
Urgency: 
Immediate
Effective: 
April 18, 2026 - 10:33am
Expires: 
April 18, 2026 - 10:45pm
Description: 
...The Flood Warning continues for the following rivers in Illinois...Wisconsin... Turtle Creek Near Clinton affecting Rock and Winnebago Counties. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Turtle Creek near Clinton. * WHEN...Until Monday morning. * IMPACTS...At 10.0 feet, South Creek Rd threatened north of Inman Parkway east of Beloit. Low-lying private roadways threatened west of Shopiere. Yards of residential structures inundated along Mocassin Trail, Bootmaker Dr, East Ridge Rd, Boulder Lane, Rockfence Lane, and Arrowhead Rd in Beloit. * ADDITIONAL DETAILS... - At 12:00 PM CDT Saturday the stage was 8.5 feet. - Bankfull stage is 6.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 12:00 PM CDT Saturday was 8.5 feet. - Forecast...The river is expected to rise to a crest of 9.8 feet this evening. It will then fall below flood stage tomorrow evening. - Flood stage is 8.0 feet. - Flood History...This crest compares to a previous crest of 9.6 feet on 08/20/2007. - http://www.weather.gov/safety/flood
Instruction: 
Motorists should not attempt to drive around barricades or drive cars through flooded areas. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. 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 1245 AM CDT.
Area Description: 
Winnebago, IL; Rock, WI
Forcast Office: 
NWS Milwaukee/Sullivan WI
Sender: 
w-nws.webmaster@noaa.gov