Wednesday, December 20, 2017

Hazardous Weather Outlook for McHenry Co., IL

FLUS43 KLOT 201102
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
502 AM CST Wed Dec 20 2017


Winnebago-Boone-McHenry-Lake Illinois-Ogle-Lee-De Kalb-Kane-
DuPage-Cook-La Salle-Kendall-Grundy-Will-Kankakee-Livingston-
Iroquois-Ford-Lake Indiana-Porter-Newton-Jasper-Benton-
502 AM CST Wed Dec 20 2017 /602 AM EST Wed Dec 20 2017/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.

.DAY ONE...Today and Tonight.

No hazardous weather is expected at this time.

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

Thursday...
Elevated Ice Accumulation Risk.
Limited Snow and/or Sleet Risk.
Friday...
Limited Snow Risk.
Saturday...
Limited Excessive Cold Risk.
Sunday...
Elevated Excessive Cold Risk.
Limited Snow Risk.
Monday and Tuesday...
Elevated Excessive Cold Risk.

DISCUSSION:

Light wintry precipitation is becoming more likely for portions of
northern Illinois on Thursday into Thursday night. This includes
the potential for light ice accumulations in freezing rain and/or
drizzle along with minimal snow and sleet accumulations of under
one inch on grassy/colder surfaces. The greatest area of concern
for a light icy glaze is along and north of Interstate 88, which
could impact the Thursday evening and Friday morning commute.

There is a diminishing risk for snow on Friday night, followed by
another risk for snow on Sunday. A very cold to bitterly cold air
mass will move into the area on Sunday night, with below to well
below zero wind chills possible Sunday night into Monday morning
and again Monday night into Tuesday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.

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