UPDATE 11:02 a.m.: L.A. County's Department of Public Works plans to close roads in the Angeles National Forest due to the approaching storm. Officials plan to shut off access to sections of the Upper Big Tujunga Canyon Road and Angeles Forest Highway starting at 10 p.m. Wednesday.



View Road Closures in Angeles National Forest in a larger map

So far, traffic looks smooth on Interstate 5 through the Grapevine, but meteorologist Mike Wofford said drivers may see snow flurries along the 5 Freeway on the Grapevine.

“We’re gonna get some accumulating snows up there – probably three to six inches on average," Wofford said. "Events we’ve had recently have all been rain up there so this will be their first probably good snow event of the season.”

Snow levels will start at six or seven thousand feet Wednesday night and drop Thursday to four to five thousand feet. The National Weather Service forecasts that snow may begin to fall this evening.

Sprinkles have begun blanketing patches of the Southland.

PREVIOUSLY: Bundle up and prepare for rain and mountain snow in the Southland as a new storm rolls in Wednesday and promises to drop precipitation on Southern California for two consecutive days.

Expect light precipitation that may grow in strength towards the evening Wednesday, totalling about a half inch in coastal and valley regions and 1 inch in the mountains and foothills.

The National Weather Service says that isolated thunderstorms on Thursday may create heavier showers and even small hail. Of course, beware of slippery roads.

Snow levels will remain quite low with the incoming storm, but those venturing on mountain roads and through passes on Interstate 5 should be cautious about reduced visibility.

According to the NWS, the cold storm originates in the Gulf of Alaska.