Snow falling at the rate one inch an hour

Bands of heavy lake-enhanced snowfall continue to sweep through the Chicago bringing rapidly mounting snow totals. At 7:30 radar showed the heaviest snow falling across portions of Lake Cook, DuPage, eastern Kane and northern Will counties in northeast Illinois.  Other bands of heavy snow were spreading south out of southeast Wisconsin into McHenry and Lake counties.

With the snow expected to continue well past midnight, it appears that another 4 to 6 inches may fall in many areas bringing storm totals to near or above 12-14 inches in many locations in the north and eastern portions of the metropolitan area. As the night wears on the snow band will slowly shift to the southeast moving into northwest Indiana before daybreak.

Some late snow totals..

Buffalo Grove 11 inches

Lincolnwood 7 inches

Peotone 4.1 inches

Chicago Lawn 6.0 inches

Chicago 95th and the Dan Ryan 7.0 inches 


6PM Storm Update

As of 6:00PM, snow bands continue to intensify over northeast Illinois.  The lake enhanced snow will eventually shift into northern Indiana, but that will not occur until well after Midnight. 


Here is what you can expect for the rest of the evening and overnight

6PM to 10PM:  Strengthening northeast winds will continue to tap into Lake Michigan moisture and produce bands of heavy “lake enhanced” snow across Lake (IL), Cook and DuPage Counties.   Some of these snow bands will venture as far west as McHenry, Kane, Will, Kendall and Counties .   Periods of severely limited visibility are likely in the heavier snow bands.  The most impressive snow totals will occur within 10 to 12 miles of Lake Michigan. 

10PM to 3AM :  As winds turn northerly, the snow will quickly taper or end over the western suburbs, but will continue over portions of Lake (IL), Cook, Du Page, and northern Will Counties.    Winds will  increase to 20 to 35mph, resulting in considerable blowing and drifting of the light, fairly fluffy snow.   Travel may become downright dangerous in open or rural areas with near blizzard conditions possible. 

6AM Wednesday:  Any leftover snow in northeast Illinois will quickly come to an end.  Periods of snow will continue across northwest Indiana through at least mid morning.  Total storm accumulation for most areas of 7″ to 12″.  A few locations in Lake(IL) and Cook Counties may see up to 14 inches. 


Legend for map below:

Winter Storm Warning:  Red

Winter Weather Advisory:  White

WGN Weather Center 7 Day Forecast