CHICAGO (AP) _ A winter storm moved into northern Illinois on Friday, threatening to disrupt holiday travel with canceled flights and snow-covered roads.
Flights at O'Hare International Airport were delayed about an hour, and cancellations were expected as the day progressed. Officials urged travelers to check the status of their flights.
Midway Airport reported normal operations Friday morning.
The National Weather Service issued a snow advisory for parts of northern and western Illinois through Friday night. Accumulations could reach up to 6 inches. Chicago prepared nearly 300 plows and salt spreaders for duty.
In the Southeast, forecasters said additional rainfall was likely this weekend in the Atlanta metro area, and may determine whether 2007 is the driest on record for the region.
As of Friday morning, the area had just under 30 inches of rain. The record was set in 1954 when the area had less than 32 inches of rain, according to the weather service.
In the West, rain and high elevation snow was forecast from Washington through central California.