Flash Flood Watch
Issued by NWS Milwaukee/Sullivan, WI

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WGUS63 KMKX 181845
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URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Milwaukee/Sullivan WI
1245 PM CST Sun Feb 18 2018

...Long Duration Rainfall Could Result In Flooding...

.There is increasing concern that the period Monday through
Tuesday night could result in parts of south central and southeast
Wisconsin seeing flooding as a result of repeated rounds of
rain.

A frontal boundary will push into the area and stall, acting as a
focus for multiple rounds of moderate to possibly heavy rainfall.

We have an existing icy snowpack with high moisture content and
the ground is still deeply frozen. One to 2 inches of rain falling
on these surface conditions is an ideal setup for efficient and
rapid runoff. This could cause smaller rivers and streams to reach
flood stage.

Thunderstorms are also possible in the southeast. If heavy rain
accompanies these storms, flash flooding becomes a concern.

There is still some uncertainty as to just where the heavier rain
bands will set up and how the icy rivers and ground will respond.

For now, prepare for the potential of this heavy rain and possible
flooding across southern Wisconsin during the Monday through
Tuesday night timeframe. If flooding does occur, it would persist
through much of the week ahead.

WIZ063>066-068>072-190245-
/O.NEW.KMKX.FA.A.0001.180220T0000Z-180221T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Dane-Jefferson-Waukesha-Milwaukee-Green-Rock-Walworth-Racine-
Kenosha-
Including the cities of Madison, Watertown, Fort Atkinson,
Jefferson, Waukesha, Brookfield, New Berlin, Menomonee Falls,
Muskego, West Allis, Wauwatosa, Greenfield, Franklin, Oak Creek,
South Milwaukee, Cudahy, Monroe, Brodhead, Janesville, Beloit,
Whitewater, Delavan, Elkhorn, Lake Geneva, East Troy, Racine,
and Kenosha
1245 PM CST Sun Feb 18 2018

...FLOOD WATCH IN EFFECT FROM MONDAY EVENING THROUGH LATE TUESDAY
NIGHT...

The National Weather Service in Milwaukee/Sullivan has issued a

* Flood Watch for portions of south central Wisconsin and
  southeast Wisconsin, including the following areas, in south
  central Wisconsin, Dane, Green, and Rock. In southeast
  Wisconsin, Jefferson, Kenosha, Milwaukee, Racine, Walworth,
  and Waukesha.

* From Monday evening through late Tuesday night

* Repeated round of moderate to heavy rainfall during the watch
  period.

* Small rivers and streams will rise quickly. Some urban and low
  land flooding is possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flood Watch means there is a potential for flooding based on
current forecasts.

You should monitor later forecasts and be alert for possible
Flood Warnings. Those living in areas prone to flooding should be
prepared to take action should flooding develop.

&&

$$


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