ALT Another cold storm system will bring rain and mountain snow to the area, with lowering snow levels. Rainfall totals will be generally 0.5 to 1.0 inch for most areas, with 1-2 inches for the mountains and foothills, and in NW San Luis Obispo County. Five to ten inches of snow is likely above 6,000 feet. Snow levels will be above 6,000 feet initially, but will lower to 3,000 to 5,000 feet Wednesday and Thursday, with light snow accumulations possible on Tejon Pass / Grapevine, and other mountain passes. There will be a slight chance of thunderstorms across northern sections Wednesday afternoon, shifting southward across the area through Thursday morning. Any storms that develop will be capable of producing heavy rain and small hail. Winds will be southwest, gusting between 20 to 40 mph across the area. Urban and small stream flooding will be possible in areas with heavy rain. Expect slick roads with travel delays possible. Also prepare for winter driving in the mountains.