Tuesday, December 29, 2020

Hazardous Weather Outlook for McHenry Co., IL

<pre>FLUS43 KLOT 292141
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
341 PM CST Tue Dec 29 2020


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
341 PM CST Tue Dec 29 2020 /441 PM EST Tue Dec 29 2020/

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

.DAY ONE...Tonight.

Weather hazards expected...

Limited Non Thunderstorm Wind Risk.
Elevated Ice Accumulation Risk.
Significant Snow and Sleet Risk.

DISCUSSION...

Snow, likely heavy at times will continue into the early evening.
This will result in rapid reductions in visibility and quick
accumulations. Snow will gradually change over to a wintry mix,
including freezing rain from mid evening into the overnight from
south to north. Snow accumulations of 4 to 9 inches, locally
higher, are expected in portions of northern Illinois, mainly
along and north of Interstate 88 and especially in far north
central Illinois. Light ice accumulation is likely across much of
the area for at least a brief period tonight. A transition to
primarily rain is expected early late tonight into Wednesday
morning, but travel impacts will likely continue into the morning
commute.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Thursday night and Friday...
Elevated Ice Accumulation Risk.
Elevated Snow and Sleet Risk.DISCUSSION:

DISCUSSION:

Confidence is increasing in a strong weather system moving
north over the area later Thursday night and Friday bringing an
accumulating wintry mix, including freezing rain, later Thursday
night into Friday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.
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