Headline:
Flood Warning issued April 18 at 10:23PM CDT by NWS Milwaukee/Sullivan WI
Event:
Flood Warning
Urgency:
Immediate
Effective:
April 18, 2026 - 8:23pm
Expires:
April 19, 2026 - 8:30am
Description:
...The Flood Warning continues for the following rivers in
Illinois...Wisconsin...
Sugar River At Brodhead affecting Rock, Winnebago and Green
Counties.
Rock River Near Lake Koshkonong affecting Jefferson and Rock
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.
Crawfish River At Milford affecting Jefferson County.
* WHAT...Moderate flooding is occurring and moderate flooding is
forecast.
* WHERE...Rock River at Fort Atkinson.
* WHEN...Until further notice.
* IMPACTS...At 17.5 feet, Floodwaters partially cover low spots on
Highway 106 near Rock River Park. A riverside walkway near South
Water Street in downtown Fort Atkinson is closed. A few homes and
businesses are surrounded by water at the end of Vets lane near
the intersection of Highway 106 and Blackhawk Island Road about 1
mile southwest of Fort Atkinson. North Shore Road about 1 mile
southwest of Fort Atkinson is closed. Ralph Rd impacted.
Floodwaters cover fields on the east side of Fort Atkinson.
* ADDITIONAL DETAILS...
- At 10:00 PM CDT Saturday the stage was 17.1 feet.
- Bankfull stage is 14.5 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 10:00 PM CDT Saturday was 17.1 feet.
- Forecast...The river will rise to 17.3 feet tomorrow evening.
It will then fall Monday morning. It will rise to 17.4 feet
early Monday afternoon. It will then fall again but remain
above flood stage.
- Flood stage is 16.0 feet.
- Flood History...This crest compares to a previous crest of
17.4 feet on 09/11/2018.
- 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.
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 Sunday morning at 1030 AM CDT.
Area Description:
Jefferson, WI
Forcast Office:
NWS Milwaukee/Sullivan WI