15 Sep 2014
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Wind Chill Advisory Issued; Gusty Winds to Create Drifting, Frigid Temps

Wind chill advisory takes effect in McHenry County at 9 p.m. Wednesday, Jan. 22.

Wind Chill Advisory Issued; Gusty Winds to Create Drifting, Frigid Temps
UPDATE 9 p.m. Wednesday:  The wind chill advisory has been extended to noon on Thursday, Jan.23. 

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Original post: 

The National Weather Service in Chicago has issued a wind chill advisory effective from 9 p.m. Wednesday through 10 a.m. Thursday, Jan. 23.

A strong arctic frontal boundary will arrive across Northern Illinois late Wednesday afternoon and will stretch across Northwest Indiana by this evening.
Temperatures will fall quickly to about 0 degrees behind the front, and continue to plunge to -20 by 10 p.m., according to the NWS.

Overnight windchill temps are expected to reach -22 to -28.

The low temperatures combined with gusty winds of 25 to 35 mph will create dangerously cold wind chill values of -20 to -25 degrees by Wednesday evening and nearing -30 by early Thursday morning, the NWS warns.

The fresh powder-like snow expected to fall during the day on Wednesday along with the gusty winds will result in areas of blowing and drifting snow through Thursday morning.



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