Headline:
Flood Warning issued April 20 at 9:38PM CDT until April 21 at 9:00AM CDT by NWS Milwaukee/Sullivan WI
Event:
Flood Warning
Urgency:
Immediate
Effective:
April 20, 2026 - 7:38pm
Expires:
April 21, 2026 - 7:00am
Description:
...The Flood Warning is extended for the following rivers in
Wisconsin...Illinois...
Sugar River At Brodhead affecting Green, Winnebago and Rock
Counties.
...The Flood Warning continues for the following rivers in
Wisconsin...Illinois...
Rock River At Newville affecting Rock County.
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.
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Sugar River at Brodhead.
* WHEN...Until late tomorrow morning.
* IMPACTS...At 5.0 feet, Some roads become flooded about 6 miles
downstream in Avon Township in Rock County. In the Avon Bottoms
area of Rock County, some minor flooding develops in Sugar River
Park, including the boat ramp.
* ADDITIONAL DETAILS...
- At 9:00 PM CDT Monday the stage was 5.2 feet.
- Bankfull stage is 4.5 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:00 PM CDT Monday was 6.2 feet.
- Forecast...The river is expected to fall below flood stage by
early Tuesday morning.
- Flood stage is 5.0 feet.
- Flood History...This crest compares to a previous crest of
5.2 feet on 03/13/1972.
- http://www.weather.gov/safety/flood
Instruction:
Motorists should not attempt to drive around barricades or drive
cars through flooded areas.
Caution is urged when walking near riverbanks.
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 Tuesday morning at 900 AM CDT.
Area Description:
Winnebago, IL; Green, WI; Rock, WI
Forcast Office:
NWS Milwaukee/Sullivan WI
Sender:
w-nws.webmaster@noaa.gov