Friday Snow Storm Expected

UPDATED Jan. 20, 8:30 a.m. The Chicago-area could see five to 8 inches of snow Friday, Jan. 20, the National Weather Service said.

A Winter Storm Warning is in effect from 9 a.m. until midnight. Snow is expected to develop during the late morning hours with the heaviest snowfall expected this afternoon.

UPDATED Jan. 19, 3:40 p.m.

The National Weather Service has now issued a winter weather advisory for Friday. The winter storm watch is no longer in effect.

The advisory will be in effect from 9 a.m. Friday until midnight. According to the National Weather Service, the snow is expected to start falling during the mid- to late-morning hours, with the heaviest snow forecast to fall in the afternoon. About 3 to 6 inches of snow is expected, with locally higher amounts possible.

Jan. 19 11:30 a.m.

The National Weather Service has issued a winter storm watch for the Chicago area for Friday, Jan. 20, 2012.

"Snow is expected to develop over northwest Illinois around daybreak Friday and quickly spread across northern Illinois," the National Weather Service stated.

Palatine could see between three and seven inches of snow Friday. The National Weather Service states that the heaviest snow is likely to fall from Friday afternoon into early Friday evening "when snow fall rates of up to one inch per hour are possible."