A winter storm watch is in effect for tomorrow into Tuesday for the mountains of California from extreme Northern California, through the Sierra Nevada to the Kern County mountains north of Los Angeles.
Lighter rain and snow at high elevations is expected to diminish over a wide area of California today. But the National Weather Service says a storm system with much colder air moving from the Gulf of Alaska will bring heavier rain, snow and strong southwest winds from tonight through tomorrow into Tuesday morning.
The winter storm watch is issued for the northern and southern Sierra Nevada, the Mount Lassen area, western Plumas County, the Tulare County mountains, and the Kern County mountains north of Los Angeles.
One foot of snow or even more is possible above the 7,000 elevation of the Sierra, with lighter snow above 5,000 tomorrow into Tuesday.
Southern California mountains are expected to have snowfall at higher elevations tomorrow night into Tuesday. Also forecast are winds gusting to over 40 miles per hour in mountain passes , a chance of flooding in low-lying areas, and some extremely dense fog in Southern California mountains.
In the 24-hour period ending at 4 a.m. today, Ukiah had about three-quarter inch of rain, the San Francisco Bay area had amounts ranging from one-half inch to nearly one inch at San Francisco International Airport. Amounts near one-third inch of rain fell as far south as Modesto, Fresno, San Luis Obispo and Santa Barbara.