43°27'N / 89°28'W / Altitude 245 m / 15:05 2026/04/21, America/Chicago (UTC-5)
From: 2026/04/21, 10:25
To: 2026/04/21, 22:30
...The Flood Warning is extended for the following rivers in Wisconsin... Fox River At Princeton affecting Green Lake County. ...The Flood Warning continues for the following rivers in Wisconsin...Illinois... Wisconsin River At Portage affecting Columbia County. 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. Fox River Near Berlin affecting Green Lake County. Crawfish River At Milford affecting Jefferson County. Fox River Lower At Rochester affecting Racine County. Fox River Lower At Waukesha affecting Waukesha County. Fox River Lower Near New Munster affecting Kenosha and Lake Counties. * 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
Columbia, WI
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.
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
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 this evening at 1030 PM CDT.
NWS Milwaukee/Sullivan WI
2026/04/21, 10:25