Thinking about traveling this weekend?

Then be prepared for light rain in the valley and snow in the mountains of Kern County at levels that could disrupt your plans.

The National Weather Service on Saturday issued a winter weather advisory for the southern Sierra and Kern County mountains for elevations above 4,000 feet, said NWS Meteorologist Jeff Barow. The advisory, which extends from 10 p.m. Saturday until 4 p.m. Sunday, warns motorists to expect 2 to 4 inches of snow at elevations above 4000 feet -- and possibly 4 to 8 inches in locations above 5,000 feet.

"It is a pretty cold system," Barow said of the storm. "Snow levels will likely start off at 5,500 feet to 6,000 feet, but will lower as precipitation increases."

Snowfall will likely reach pass levels by early to mid-morning Sunday, he said.

Gusty winds are also expected at times, so use caution when traveling mountain passes.

Alta Sierra Ski Resort and Terrain Park, in the Kern County mountains between Isabella Lake and Glennville, opened Saturday with an 18-inch base, and expects to be in operation on Sunday as well, according to its website and information line. Its ticket office opens at 8 a.m. with ski and snowboard runs open from 9 a.m. to 4 p.m. Motorists in mountainous areas are always advised to carry chains.

No matter what direction you're headed, you can check road conditions before you go by calling (800) 427 ROAD.