Southern California is starting the week with fresh cold and the return of Santa Ana winds.
Fresh chilly air is sinking into Southern California in the wake of the storm that started the weekend with some rain and low-elevation snow.
The Grapevine section of Interstate 5 was among the lower elevations that had snow on Saturday. Enough snow fell that officials closed this section of the interstate, according to California's Department of Transportation.
Temperatures in Downtown Los Angeles dropped below 40 on Sunday night, making for the city's lowest temperature since February.
Temperatures barely climbed to 60 degrees on Monday, nearly 10 degrees below normal.
Monday was sunnier than the previous weekend days, but the gusty Santa Ana winds will start howling in the mountains and through the passes and canyons that surround Los Angeles.
Before the winds develop, it could turn cold enough for patchy frost in the valleys.
A moderate Santa Ana wind event will unfold through Tuesday morning with gusts of 50 to 60 mph expected in the populated areas. Stronger gusts will whip the mountains.
Such gusts could lead to power outages and tree damage. The winds also threaten to overturn high-profile vehicles, including those traveling on the I-5's Grapevine section and I-15's Cajon Pass.
The winds will help prevent temperatures from plummeting overnight on Monday, but the same cannot be said for places that are sheltered from the wind--such as Downtown Los Angeles.
On Monday night, Los Angeles will approach the daily record low of 36 F from 1951. Frost is possible in the city's colder wind-sheltered suburbs.
Temperatures will be a few degrees below average across the UK this weekend, but largely dry conditions are expected.
After no rain for almost a month, Santiago braces for rain early in the week. Cool air follows, spreading into Chile, Argentina and Uruguay mid-week.
There is a significant chance that Jimena will turn back toward Hawaii and threaten the islands during the second week of September.
An unusually strong push of cool air for early September will move southward along the Atlantic Seaboard into the Labor Day weekend before July-like heat returns by next week.
Steering winds could take Ignacio, as a remnant storm, into the southeastern arm of Alaska or British Columbia during the middle days of next week.
Strong thunderstorms will roll across the Upper Midwest while rain and strong winds roar through the Northwest this weekend.
Los Angeles, CA (1988)
110 degrees -- all-time September record.
Washington, DC (1939)
"Once in a hundred-year rainstorm" 4.40 inches in 2 hours at the Washington Zoo.
Minneapolis, MN (1941)
Tornado - 5 dead - $450,000 damage.