Hotter-than-normal weather has prevailed for the past few days. The heat peaked in the Los Angeles area Wednesday with widespread 90-degree temperatures, around 15 degrees above normal.
The offshore flow creating this heat will turn around quickly to onshore Thursday, then become increasingly strong through the weekend.
High temperatures Thursday will drop a 10 degrees from Wednesday's highs.
The coolest weather will be over the weekend, however. Morning marine clouds will extend far inland each morning before clearing to sunshine.
High temperatures will drop below normal with low to mid-70s for coastal cities and middle to upper 70s in the valleys.
A powerful storm will bring disruptive weather from Spain to France and Italy for Christmas Day.
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.
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.
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.
Warm air is forecast to surge into much of the eastern half of the nation by the weekend and will be accompanied by heavy rain and flooding risk in some locations.
Chicago, IL (1960)
12.5" snow, max. 24 hour December snow.
Little Rock, AR (1998)
282 straight days without subfreezing temperatures, longest streak on record.
Galena, AK (2001)