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Green County Sheriff's Office
Sunday April 19th, 2026 :: 10:27 a.m. CDT

Alert

Flood Warning until 09:00PM Tuesday

...The Flood Warning continues for the following rivers in Wisconsin...Illinois... Milwaukee River Near Cedarburg affecting Ozaukee 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 Kenosha and Lake Counties. Sugar River At Brodhead affecting Rock, Winnebago and Green Counties. ...The Flood Warning is extended for the following rivers in Wisconsin... Pecatonica River At Martintown affecting Green County. Root River Canal At Raymond affecting Racine County. ...Forecast flooding changed from Moderate to Major severity and increased in duration for the following rivers in Wisconsin... Wisconsin River At Portage affecting Columbia County.

* WHAT...Minor flooding is forecast.

* WHERE...Pecatonica River at Martintown.

* WHEN...Until late Tuesday evening.

* IMPACTS...At 13.5 feet, Floodwaters affect Martintown Road and West River Road in the Martintown area. Upstream in Browntown, floodwaters affect highway MM and West Indies Road.

* ADDITIONAL DETAILS... - At 10:00 AM CDT Sunday the stage was 13.3 feet. - Bankfull stage is 9.5 feet. - Forecast...The river is expected to rise above flood stage this afternoon to a crest of 13.8 feet just after midnight tonight. It will then fall below flood stage Tuesday afternoon. - Flood stage is 13.5 feet. - Flood History...This crest compares to a previous crest of 13.8 feet on 06/21/1996. - http://www.weather.gov/safety/flood

* AFFECTED AREAS: GREEN, WI

Instructions:

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. Additional information is available at www.weather.gov. The next statement will be issued this evening at 1030 PM CDT.

Address/Location
Green County Sheriff's Office
2827 6th St
Monroe, WI 53566

Contact
Emergency: 9-1-1
Non-emergencies: 608-328-9400

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Alert Details

Severity:
Severe - Significant threat to life or property
Urgency:
Immediate - Responsive action SHOULD be taken immediately
Certainty:
Observed - Determined to have occurred or to be ongoing
Category:
Meteorological (inc. flood)
Event:
Flood Warning

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