PHOENIX - Six days before Christmas and the first major storm of the season is causing travel problems for many.
Light snow is expected at Chicago's O'Hare International Airport on Thursday and strong winds could make visibility poor.
That, combined with low clouds, could cause delays at the nation's second-busiest airport.
More than 90 flights were already canceled there Thursday morning.
The storm dumped more than a foot of snow in the Rocky Mountains.
Denver International Airport officials say blowing snow and low visibility will likely cause delays throughout the day.
At Sky Harbor travelers faced 15-30 minute delays early in the day, but most arrivals and departures have been on time.
An ABC15 crew talked with quite a few travelers Friday morning.
The ones heading to the Midwest didn't seem too concerned about the snow and cold, but packed winter gear accordingly.
Some told us they were going to miss the Valley's blue skies and sunshine on Christmas.
There's a possibility the Midwest storm could impact travel out of Phoenix so be sure to check your flight status or call the airline before you head to the airport.
The storm is expected to hit Wisconsin and Michigan, where up to a foot of snow was forecast in the north by Friday.