Headline:
Flood Warning issued April 26 at 4:55AM CDT until April 28 at 10:00PM CDT by NWS Milwaukee/Sullivan WI
Event:
Flood Warning
Urgency:
Immediate
Effective:
April 26, 2026 - 2:55am
Expires:
April 26, 2026 - 3:00pm
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 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 near LEBANON-3 E-HWY MM BRIDGE affecting Dodge County.
* WHAT...Moderate flooding is occurring and moderate flooding is
forecast.
* WHERE...Rock River at Jefferson.
* WHEN...Until late Tuesday evening.
* 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 4:00 AM CDT Sunday the stage was 11.0 feet.
- Bankfull stage is 8.0 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 4:00 AM CDT Sunday was 11.2 feet.
- Forecast...The river is expected to rise to a crest of 11.0
feet this morning. It will then fall below flood stage
Tuesday afternoon.
- Flood stage is 10.0 feet.
- Flood History...This crest compares to a previous crest of
11.0 feet on 07/27/2010.
- 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.
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Additional information is available at www.weather.gov.
The next statement will be issued this afternoon at 500 PM CDT.
Area Description:
Jefferson, WI
Forcast Office:
NWS Milwaukee/Sullivan WI