The Bay Area, already under an advisory of strong winds with gusts up to 50 mph through 4 p.m. Sunday, should prepare for frost in some areas overnight, the National Weather Service said.
The NWS Bay Area office issued a frost advisory for Sunday night into early Monday.
Temperatures are forecast to drop to the upper 20s to low- to mid-30s from 3 to 9 a.m. in interior valleys in the North Bay, including Santa Rosa, Napa and Marin counties, and the interior valleys of Monterey and San Benito counties, including the Salinas and Carmel valleys.
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