LOS ANGELES (CBS) — A cutoff low-pressure system swept across the Southland overnight, drenching parts of the Southland overnight and pushing rainfall totals well beyond the norm for this time of year.

The National Weather Service says moderate rain is expected to fall over Los Angeles and Ventura counties with rainfall totals ranging between a quarter inch and .75 inches.

By nightfall, the chance of rain will decrease to 20 percent. Sunday is expected to be dry and partly cloudy with highs in the 60s.

At the beaches, a west-northwest swell may produce breakers of about 5 feet or more, and water temperatures will be in the low 60s.

A high surf advisory is in effect through 10 p.m. for Orange County beaches, where waves could be 7 feet or more, according to the NWS.

Elsewhere, the Grapevine section of Interstate 5 got a dusting of snow overnight, but the freeway remains open.

KNX 1070’s Ed Mertz spoke with Meteorologist David Sweet of the NWS who says we received far less than the forecast of three to six inches of snow in the higher mountain elevations.

“Even the mountain resorts only picked up about an inch of snow and we are expecting the possibility of a little bit more today, maybe about another inch or so,” he said.

(©2011 CBS Local Media, a division of CBS Radio Inc. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed. Wire services contributed to this report.)