Headline:
Flood Warning issued April 19 at 10:26AM CDT until April 24 at 11:00AM CDT by NWS Milwaukee/Sullivan WI
Event:
Flood Warning
Urgency:
Immediate
Effective:
April 19, 2026 - 8:26am
Expires:
April 19, 2026 - 8:30pm
Description:
...The Flood Warning continues for the following rivers in
Wisconsin...Illinois...
Milwaukee River Near Cedarburg affecting Ozaukee 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.
Fox River Near Berlin affecting Green Lake County.
Crawfish River At Milford affecting Jefferson County.
Fox River Lower At Waukesha affecting Waukesha County.
Fox River Lower Near New Munster affecting Kenosha and Lake
Counties.
Sugar River At Brodhead affecting Rock, Winnebago and Green
Counties.
...The Flood Warning is extended for the following rivers in
Wisconsin...
Pecatonica River At Martintown affecting Green County.
Root River Canal At Raymond affecting Racine County.
...Forecast flooding changed from Moderate to Major severity and
increased in duration for the following rivers in Wisconsin...
Wisconsin River At Portage affecting Columbia County.
* WHAT...Major flooding is occurring and major flooding is forecast.
This approaches the flood of record.
* WHERE...Wisconsin River at Portage.
* WHEN...Until late Friday morning.
* IMPACTS...At 19.0 feet, There is 1 foot of water over a low
section of County Highway V in Dekorra. Floodwaters affect River
Oaks Road and River Shores Road (Lewiston Township) as well as
numerous roads in the Blackhawk Park area about 3 miles south of
Portage.
* ADDITIONAL DETAILS...
- At 9:00 AM CDT Sunday the stage was 19.2 feet.
- Bankfull stage is 12.7 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:00 AM CDT Sunday was 19.9 feet.
- Forecast...The river is expected to fall below flood stage
early Friday morning and continue falling to 15.5 feet
Sunday, April 26.
- Flood stage is 17.0 feet.
- Flood History...This crest compares to a previous crest of
19.4 feet on 04/14/2011.
- 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 this evening at 1030 PM CDT.
Area Description:
Columbia, WI
Forcast Office:
NWS Milwaukee/Sullivan WI