Forecasters with the National Weather Service are expecting rain throughout the Bay Area Saturday night as well as on Sunday and Monday, someareas in higher elevations getting as much as 3 1/2 inches.
Parts of the North Bay are expected to get 1 1 1/2 inches to 2.5 inches of rainfall, and higher elevations in the coastal ranges could get 2 1/4 inches to 3 1/2 inches.
Other areas in the region are expected to get somewhat less in the next few days, between 3/4 to 1 1/2 inches, according to the weather service.
In the Palo Alto area on Sunday, there's an 80 percent chance of rain, mainly after 11 a.m., with southeast winds of 8 to 10 mph. Rainfall of between 0.10 and 0.25 inches is possible.
By Sunday evening, the weather service is predicting a 100 percent chance of rain, with rainfall totaling between 1/2 and 3/4 inches. The low temperature will be around 52 with a south-southeast wind of 6 to 11 mph.
Chances of rain lessen Monday, to about 50 percent.
Flash flood warnings are in effect for some parts of the North Bay. Wind speeds of 15 to 25 mph are expected, with gusts of up to 40 mph at higher elevations.
A high surf warning also remains in effect until 9 p.m. Sunday.