Flights into and out of Phoenix Sky Harbor International Airport were severely curtailed on Thursday afternoon because of severe weather, but a limited number of takeoffs and landings were still taking place as of 3 p.m. local time.
Southwest Airlines canceled all arriving and departing flights as of 2 p.m. Thursday and won't resume air service until Friday. The airline also canceled flights in Tucson and at most Southern California airports.
US Airways canceled 26 flights and United Airlines and other carriers severely curtailed operations at Sky Harbor.
Sky Harbor spokeswoman Deborah Ostreicher says high winds and low visibility are expected to limit operations as the heart of a winter storm hits the Phoenix area on Thursday afternoon.