Snow is hitting Chicago with dangerous travel across much of the Midwest.
Ice, rain and snow are slamming the United States from Texas to Maine.
Thunderstorms in parts of the South this weekend may become strong enough to threaten lives and property.
As California heads into its third consecutive dry winter with no relief in sight, firefighters continue to battle a late-fall blaze in Big Sur.
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.
An abrupt and abnormal cold wave gripped parts of southeastern Texas in early December, catching many off-guard, including two native Southern California bobcats recently transferred to the area.
Wintry and violent weather will avoid central Pennsylvania through the weekend.
N. California & Oregon (1964)
Great warm surge and torrential rains on deep snow cover; record floods followed.
Portland, OR (1892)
27.5" of snow (21st-24th).
Des Moines, IA (1990)
Freezing drizzle with a temperature of -2 degrees F.