After nearly a week of warm, sunny weather, a cold low pressure system descending from the coast of British Columbia will bring rain throughout the region, as well as snow at higher elevations, strong winds, and possibly thunderstorms, NWS said in a weather alert.
Rain is expected to begin in the northern Bay Area counties on Friday afternoon, and will reach San Francisco and the Peninsula by Friday evening, NWS said. The Monterey Bay region will also experience some rain on Friday night, they said.
The entire area will continue to receive rain throughout the day on Saturday, NWS said. Though the rain is predicted to be steady, it is not expected to fall in large amounts, according to NWS.
While higher elevations could receive over an inch of rain by Sunday, urban areas can expect less than half an inch of rainfall this weekend, NWS said. Many of the area’s surrounding peaks that exceed 3,000 feet in elevation can expected some snowfall, NWS said.
The weather trackers added that there is also a slight chance of thunderstorms this weekend in the impacted areas, which include all or parts of San Francisco, Santa Cruz, San Mateo, Marin, Monterey, Contra Costa, Benito, Sonoma, Santa Clara, and Alameda counties.
Gusty western winds are also predicted to accompany the cold front, NWS said, with Saturday night winds expected to reach or exceed 30 mph.
The weather service advises anyone who was planning to spend the weekend doing outdoor activities or travel to monitor the latest forecasts and prepare for the possibility of potentially hazardous winter storm weather.