Wednesday, January 8, 2020

Hazardous Weather Outlook for McHenry Co., IL

<pre>FLUS43 KLOT 081044
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
444 AM CST Wed Jan 8 2020


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-Cook-
La Salle-Kendall-Grundy-Will-Kankakee-Livingston-Iroquois-Ford-
Lake IN-Porter-Newton-Jasper-Benton-
444 AM CST Wed Jan 8 2020 /544 AM EST Wed Jan 8 2020/

This Hazardous Weather Outlook is for portions of North Central
Illinois...Northeast Illinois and Northwest Indiana.

.DAY ONE...Today and Tonight.

Weather hazards expected...

Elevated Lakeshore Flood Risk this morning.

DISCUSSION...

High waves this morning will result in continued lakeshore
flooding concerns for Porter County, especially northeastern
shores, before wave action decreases.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Thursday...
Limited Non Thunderstorm Wind Risk.
Limited Lakeshore Flood Risk for Lake County IL
Friday Night...
Limited Flooding Risk.
Limited Ice Accumulation Risk.
Limited Snow and Sleet Risk.
Elevated Lakeshore Flood Risk.
Saturday and Saturday Night...
Limited Non Thunderstorm Wind Risk.
Limited Snow and Ice Risk.
Elevated Lakeshore Flood Risk.

DISCUSSION:

There is increasing potential for a storm system to impact the
region late Friday through Saturday night and possible through
Sunday morning. At this time, impactful accumulating wintry
precipitation is a distinct possibility across at least portions
of the area, especially parts of northern Illinois Friday night
and Saturday morning, and the entire area Saturday afternoon and
night. However, there is still a good deal of uncertainty with
the track and strength of the storm system, which will ultimately
influence snow and ice accumulations and what areas are affected.

Strong southerly wind gusts of 35 to 40 mph, with sporadic gusts
to 45 mph, are expected on Thursday. Winds are then forecast to
become northerly which will build waves, bringing a risk for
lakeshore flooding late Friday night through Saturday night.

Finally, waves of moderate to occasionally heavy rainfall may
result in a risk for flooding for locales roughly south and east
of I-55.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.
</pre>


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