A Pacific storm will impact the Southwest over the next couple of days, bringing fall-like temperatures, rain and even snow to the higher elevations.
The storm will mark the first measurable rain in months for parts of Southern California.
Slow travel, airport delays and surprised residents are all possible over the next couple of days as the storm pushes inland toward the Four Corners region and eventually the drought-stricken Plains.
Showers and even thunderstorms will continue to impact central and southern California through the day today.
Downtown L.A. recorded its first measurable rain since July 12th on Wednesday when 0.05 of an inch fell.
Thunderstorms will also erupt across the interior Great Basin region, including around Las Vegas.
San Diego and even desert cities such as Palm Springs will be in line for some rain and rumbles of thunder, as well.
No rain has been measured in San Diego rain gauges since May 25.
Of course with the threat of rain, comes an increase in clouds, which will not only ruin sunbathing in the California sun, but hold temperatures down as much as 10 to 20 degrees below seasonal norms.
The chillier air found in the mountains of Souther California and Arizona will even support the season's first accumulating snow above 7,000 feet.
Such high snow levels will keep I-5 clear of icy travel through the Grapevine, but rain mixed with months of accumulated oils on Southern California highways will mean a dangerous mix. Slow travel is advised during and after any rain.
As Meteorologist Anthony Sagliani pointed out over the weekend, "Odds for any widespread soaking rain are very low." However, any thunderstorm could contain brief downpours, and perhaps even some small hail due to the very cold air aloft.
An increase in moisture from northern Mexico, will feed more widespread and heavier showers and storms, as well as high-elevation snow come Friday from the eastern Great Basin into the southern Rockies.
From there, it's on to the Plains, where the rain is sorely needed, but severe thunderstorms are not.
As more than 94 million take to the roads and skies this weekend, a storm has begun to unfold threading to hinder early Christmas travel.
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.
A powerful storm will bring disruptive weather from Spain to France and Italy for Christmas Day.
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.
Des Moines, IA (1990)
Freezing drizzle with a temperature of -2 degrees F.
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).