Friday, January 17, 2020

Hazardous Weather Outlook for McHenry Co., IL

<pre>FLUS43 KLOT 172143
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
343 PM CST Fri Jan 17 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-
343 PM CST Fri Jan 17 2020 /443 PM EST Fri Jan 17 2020/

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

.DAY ONE...Tonight.

Weather hazards expected...

Elevated Ice accumulation Risk.
Elevated Snow and sleet Risk.
Limited Lakeshore Flood Risk Lake County Illinois.

DISCUSSION...

Snow, heavy at times, will continue into this evening. This snow
will begin to mix with sleet and freezing rain from south to north
during the evening and is expected to change to all rain for
areas along and south of Interstate 80 by Saturday morning, with a
wintry mix still possible across far northern Illinois.

Strong southeast winds will develop this evening and continue
overnight which may lead to minor lakeshore flooding, mainly
along the Lake County Illinois shoreline.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Saturday...
Elevated Non Thunderstorm Wind Risk.
Limited Snow Risk.
Elevated Lakeshore Flood Risk Porter County at night.
Elevated Excessive Cold Risk at night.
Sunday...
Elevated Excessive Cold Risk.
Elevated Lakeshore Flood Risk Porter County.
Monday and Tuesday...
Limited Excessive Cold Risk.

DISCUSSION:

Strong westerly winds may gust as high as 40 mph to 45 mph
late Saturday morning into Saturday evening.

As colder air spreads across the area Saturday afternoon, there
is a chance for gusty snow showers across northern Illinois. There
is also the potential for blowing snow in open areas across north
central Illinois.

Wind chill values may drop as low as -15 to -20 Sunday morning.

The strong westerly winds may lead to minor lakeshore flooding,
mainly along the northwest Indiana shoreline Saturday night and
Sunday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.
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