Headline:
Flood Warning issued April 28 at 3:43PM CDT until May 1 at 1:00AM CDT by NWS Milwaukee/Sullivan WI
Event:
Flood Warning
Urgency:
Immediate
Effective:
April 28, 2026 - 1:43pm
Expires:
April 29, 2026 - 1:45am
Description:
...The Flood Warning continues for the following rivers in
Wisconsin...Illinois...
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 Winnebago and Rock Counties.
Rock River At Jefferson affecting Jefferson County.
ROCK RIVER near LEBANON-3 E-HWY MM BRIDGE affecting Dodge County.
Fox River Lower Near New Munster affecting Kenosha and Lake
Counties.
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Rock River at Jefferson.
* WHEN...Until early Friday 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 3:00 PM CDT Tuesday the stage was 10.6 feet.
- Bankfull stage is 8.0 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 3:00 PM CDT Tuesday was 10.8 feet.
- Forecast...The river is expected to rise to a crest of 10.6
feet this evening. It will then fall below flood stage
Thursday evening.
- Flood stage is 10.0 feet.
- Flood History...This crest compares to a previous crest of
10.6 feet on 03/17/2009.
- http://www.weather.gov/safety/flood
Instruction:
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 345 AM CDT.
Area Description:
Jefferson, WI
Forcast Office:
NWS Milwaukee/Sullivan WI