As the year-end holiday season continues, storm systems are sweeping across the U.S., bringing severe weather that threatens to disrupt travel, particularly in the Pacific Northwest and along the East Coast.

The West will deal with rain on the first day of winter, the East and Great Lakes will get snow and cold, with very cold wind chills in the Northeast.

A warm front followed by colder air moves across the Twin Tiers giving us a chance for a brief light glaze of freezing rain early Saturday morning. With the cold air mass that is already in place over the region over the last several days,

A change in the flow of the jet stream over New Mexico will be bringing precipitation chances later this evening. Another chance in the flow over the weekend will lead to warmer temperatures. Northwesterly flow is increasing over New Mexico this afternoon.