Headline:
Flood Warning issued April 21 at 3:58PM CDT until April 22 at 7:00AM CDT by NWS Milwaukee/Sullivan WI
Event:
Flood Warning
Urgency:
Immediate
Effective:
April 21, 2026 - 1:58pm
Expires:
April 22, 2026 - 2:00am
Description:
...The Flood Warning continues for the following rivers in
Wisconsin...Illinois...
Crawfish River At Milford affecting Jefferson County.
Rock River At Newville affecting Rock County.
Rock River Near Lake Koshkonong affecting Jefferson and Rock
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.
Fox River At Princeton affecting Green Lake County.
Fox River Near Berlin affecting Green Lake County.
Fox River Lower At Rochester affecting Racine County.
Fox River Lower Near New Munster affecting Kenosha and Lake
Counties.
Wisconsin River At Portage affecting Columbia County.
* WHAT...Minor flooding is occurring and minor flooding is forecast.
This approaches the flood of record.
* WHERE...Wisconsin River at Portage.
* WHEN...Until tomorrow morning.
* IMPACTS...At 18.0 feet, Water surrounds seasonal homes along Old
River Rd in the Blackhawk Park area including water at the base of
Caledonia/Lewiston Levee on Old River Rd. Old River Rd, W Lake Rd,
Sec K Rd, Blackhawk Rd covered with water. West Lane Rd in Long
Lake area has 4 feet of water over it in places. In the Town of
Dekorra, about 12 homes are flooded on Hwy V. Water over River
Oaks Rd and Oak Knoll Dr near Hwy V.
* ADDITIONAL DETAILS...
- At 7:00 AM CDT Tuesday the stage was 17.8 feet.
- Bankfull stage is 12.7 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 7:00 AM CDT Tuesday was 17.8 feet.
- Forecast...The river is expected to fall below flood stage
just after midnight tonight and continue falling to 14.5 feet
Tuesday, April 28.
- Flood stage is 17.0 feet.
- Flood History...This crest compares to a previous crest of
17.8 feet on 04/25/0025.
- http://www.weather.gov/safety/flood
Instruction:
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.
Motorists should not attempt to drive around barricades or drive
cars through flooded areas.
Caution is urged when walking near riverbanks.
Additional information is available at www.weather.gov.
The next statement will be issued late tonight at 400 AM CDT.
Area Description:
Columbia, WI
Forcast Office:
NWS Milwaukee/Sullivan WI