Thursday, January 11, 2018

Hazardous Weather Outlook for McHenry Co., IL

FLUS43 KLOT 111023
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
423 AM CST Thu Jan 11 2018


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-
423 AM CST Thu Jan 11 2018 /523 AM EST Thu Jan 11 2018/

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

.DAY ONE...Today and Tonight.

WEATHER HAZARDS EXPECTED:

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

DISCUSSION:

A strong cold front will move through the area this afternoon
and early evening. A few hour period of freezing rain and sleet
is expected from west to east across the area late this afternoon
through this evening. For areas east of Interstate 57, a longer
period of snow and sleet is probable late this evening into
overnight, with minor accumulation.

The brief period of freezing rain, along with crashing
temperatures and wet roadways, will likely create hazardous travel
conditions on untreated roads this evening.

Wind gusts of 30-40 mph are possible this morning and then late
this afternoon and tonight behind the cold front.

Localized ice jam flooding will remain a threat on area rivers.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Friday...
Elevated Excessive Cold Risk.
Elevated Snow Risk Near Lake Michigan.
Limited Non Thunderstorm Wind Risk Near Lake Michigan.
Saturday...
Elevated Excessive Cold Risk.
Elevated Snow Risk Near Lake Michigan.
Sunday and Monday...
Elevated Excessive Cold Risk.
Limited Snow Risk Sunday Night.
Tuesday through Wednesday...
Elevated Excessive Cold Risk.

DISCUSSION:

Lake effect snow is likely into northeast Illinois and northwest
Indiana beginning Friday afternoon and persisting through Saturday
morning, and likely for northwest Indiana to persist through
Saturday evening. Minor accumulations of up to several inches and
sharply reduced visibility conditions near the lake are probable.

Snow is appearing likely across the area Sunday Night into Monday.
Minor accumulations are possible.

Localized ice jam flooding will remain a threat on area rivers.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.

&&



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