Headline:
Flood Warning issued April 27 at 9:38PM CDT until April 30 at 1:00AM CDT by NWS Milwaukee/Sullivan WI
Event:
Flood Warning
Urgency:
Immediate
Effective:
April 27, 2026 - 7:38pm
Expires:
April 28, 2026 - 7:45am
Description:
...The Flood Warning continues for the following rivers in
Wisconsin...Illinois...
Rock River At Fort Atkinson affecting Jefferson County.
Fox River Lower Near New Munster affecting Lake and Kenosha
Counties.
Rock River At Newville affecting Rock County.
Rock River Near Lake Koshkonong affecting Jefferson and Rock
Counties.
Rock River At Afton affecting Winnebago and Rock Counties.
Rock River At Jefferson affecting Jefferson County.
ROCK RIVER near LEBANON-3 E-HWY MM BRIDGE affecting Dodge County.
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Rock River at Jefferson.
* WHEN...Until early Thursday morning.
* IMPACTS...At 11.0 feet, Floodwaters affect low lying areas of
residential and business property in Jefferson. Water approaches
the intersection of Highway 26 (Main St) and County Road N (E Dane
St). S Center Ave near the river flooded and Riverview Drive near
the wastewater plant flooded. Park is flooded. The retention pond
at S Main St and E Dane St is full.
* ADDITIONAL DETAILS...
- At 9:00 PM CDT Monday the stage was 10.7 feet.
- Bankfull stage is 8.0 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:00 PM CDT Monday was 10.9 feet.
- Forecast...The river is expected to fall below flood stage
Wednesday evening and continue falling to 8.0 feet Monday,
May 04.
- Flood stage is 10.0 feet.
- Flood History...This crest compares to a previous crest of
10.6 feet on 10/13/2018.
- http://www.weather.gov/safety/flood
Instruction:
Caution is urged when walking near riverbanks.
Motorists should not attempt to drive around barricades or drive
cars through flooded areas.
Additional information is available at www.weather.gov.
The next statement will be issued Tuesday morning at 945 AM CDT.
Area Description:
Jefferson, WI
Forcast Office:
NWS Milwaukee/Sullivan WI