Headline:
Flood Warning issued April 20 at 4:18PM CDT until April 22 at 10:00PM CDT by NWS Milwaukee/Sullivan WI
Event:
Flood Warning
Urgency:
Immediate
Effective:
April 20, 2026 - 2:18pm
Expires:
April 21, 2026 - 2:30am
Description:
...The Flood Warning continues for the following rivers in
Wisconsin...
Wisconsin River At Portage affecting Columbia County.
* WHAT...Moderate flooding is occurring and moderate flooding is
forecast. This approaches the flood of record.
* WHERE...Wisconsin River at Portage.
* WHEN...Until late Wednesday evening.
* IMPACTS...At 18.5 feet, Floodwaters affect River Shores Road about
3 miles upstream of Portage in the Town of Lewiston and River Oaks
Road about 7 miles downstream of Portage in the Town of Dekorra in
Columbia County. Water over Levee Rd and Tritz Rd. There is
widespread flooding of roads in the Blackhawk Park Area including
West Lake Road...Blackhawk Road and Wood Street. The Blackhawk
Park area is on the south side of the river about 3 miles south of
Portage.
* ADDITIONAL DETAILS...
- At 7:00 AM CDT Monday the stage was 18.7 feet.
- Bankfull stage is 12.7 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 7:00 AM CDT Monday was 18.9 feet.
- Forecast...The river is expected to fall below flood stage
Wednesday afternoon and continue falling to 15.2 feet Monday,
April 27.
- Flood stage is 17.0 feet.
- Flood History...This crest compares to a previous crest of
18.9 feet on 03/17/2019.
- 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 430 AM CDT.
Area Description:
Columbia, WI
Forcast Office:
NWS Milwaukee/Sullivan WI