Snowfall tonight will total less than an inch Details >
Dec 21, 2013; 2:49 PM ET Short-Range Weather forecast overview for the Northwest United States
Similar to the days prior to Thanksgiving, the worst weather will focus on the days prior to Christmas as millions of travelers take to the roads and skies in the U.S. and southern Canada.
There is a threat for tornados through Saturday night.
After several days of unseasonable warmth, bitter cold and rounds of snow will continue to spread across the Western and Central states into this weekend.
A parade of snowstorms has been taking aim at the U.S. recently, increasing the chances for many to see a White Christmas.