Thursday, December 21, 2017

Special Weather Statement for McHenry Co., IL

WWUS83 KLOT 210901
SPSLOT

SPECIAL WEATHER STATEMENT
National Weather Service Chicago/Romeoville IL
301 AM CST Thu Dec 21 2017


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-DeKalb-Kane-
Including the cities of Rockford, Belvidere, Woodstock, Waukegan,
Oregon, Dixon, DeKalb, Aurora, and Elgin
301 AM CST Thu Dec 21 2017

...Period of Freezing Drizzle Possible Tonight...

A light wintry mix is probable tonight for a portion of northern
Illinois, and this may include freezing drizzle. The area of
potential is mainly for outlying locations from the Chicago metro
along and north of Interstate 88. This includes the Rockford area
and portions of the Interstate 39 and 90 corridors.

Light rain or drizzle, mixed with patchy light snow at times, is
expected to begin across far northern Illinois late today into
this evening. After dark, temperatures will very gradually inch
downward to near or just below freezing late in the evening into
overnight. Those surfaces that also cool to freezing could see a
light glaze of ice, which for any untreated roadways would result
in hazardous travel conditions. If this were to occur, some of
the slick conditions would likely linger into early Friday
morning.

Continue to monitor the forecast through today, especially if
traveling tonight or Friday morning through far northern Illinois.



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