Headline:
Flood Warning issued April 18 at 10:06AM CDT by NWS Milwaukee/Sullivan WI
Event:
Flood Warning
Urgency:
Immediate
Effective:
April 18, 2026 - 8:06am
Expires:
April 18, 2026 - 8:15pm
Description:
...The Flood Warning is extended for the following rivers in
Wisconsin...
Baraboo River Near Baraboo affecting Sauk and Columbia Counties.
Pecatonica River At Martintown affecting Green County.
Wisconsin River At Portage affecting Columbia County.
...The Flood Warning continues for the following rivers in
Wisconsin...Illinois...
Root River At Racine affecting Racine County.
Sheboygan River At Sheboygan affecting Sheboygan 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 Waukesha affecting Waukesha County.
Fox River Lower Near New Munster affecting Lake and Kenosha
Counties.
Milwaukee River Near Cedarburg affecting Ozaukee County.
Root River Canal At Raymond affecting Racine County.
...Observed flooding changed from Minor to Moderate severity and
increased in duration for the following rivers in Illinois...
Wisconsin...
Sugar River At Brodhead affecting Rock, Winnebago and Green
Counties.
* WHAT...Moderate flooding is occurring and moderate flooding is
forecast.
* WHERE...Rock River at Jefferson.
* WHEN...Until further notice.
* IMPACTS...At 12.0 feet, Riverview Drive is closed due to
floodwaters on the road. The Tensfeldt Park boat launch is closed.
Intersection of S Main St and E Dane St is closed, and S Center
Ave. Floodwaters affect highway K between Jefferson and Fort
Atkinson. River's Edge Park flooded.
* ADDITIONAL DETAILS...
- At 9:00 AM CDT Saturday the stage was 11.1 feet.
- Bankfull stage is 8.0 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:00 AM CDT Saturday was 11.2 feet.
- Forecast...The river is expected to rise to a crest of 12.8
feet Thursday morning.
- Flood stage is 10.0 feet.
- Flood History...This crest compares to a previous crest of
12.8 feet on 04/02/1979.
- http://www.weather.gov/safety/flood
Instruction:
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.
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.
Additional information is available at www.weather.gov.
The next statement will be issued this evening at 1015 PM CDT.
Area Description:
Jefferson, WI
Forcast Office:
NWS Milwaukee/Sullivan WI