The Bay Area has been placed under a frost advisory, which is expected to bring sub-freezing temperatures to much of the region in the coming days. According to the National Weather Service San Francisco, temperatures as low as 32 degrees are forecasted for the southern Salinas Valley starting from 12 AM through 9 AM Monday. Areas to the north of King City are predicted to experience slightly warmer lows between 36 and 38 degrees. Residents are advised to protect tender plants from potential cold damage.
Additionally, gusty northeast winds have been developing across the higher elevations, including parts of Napa County and the Bay Area's interior mountains, as per the Area Forecast Discussion. Eastern Napa County might see wind gusts reaching 35 to 45 miles per hour, with other higher elevations experiencing 25 to 35 miles per hour winds. These windy conditions require caution, especially for those traveling or operating high-profile vehicles.
Following the frost advisory on Monday, a second one is in effect from midnight to 9 AM tomorrow morning for the inland Bay Area and Central Coast. This bout of cold air could pose risks to sensitive populations, including unhoused individuals, and regional residents should take precautions to protect themselves, their plants, and their pets from the chilly temperatures.
Later in the week, rainfall is expected to become a significant feature in the weather landscape, with the North Bay and coastal ranges predicted to experience most of the impact from Friday to Saturday. The National Weather Service reports increasing confidence in this impending weather event, urging the public to keep up with forecast updates as exact rainfall totals remain uncertain. Preceding this rainfall, a slight chance for rain exists midweek, with better chances towards the weekend.
Meanwhile, VFR conditions are anticipated to prevail in airport forecasts through the TAF period, offering clear flight visibility. As for marine forecasts, a potential strong offshore storm next weekend could bring rough seas after lessening winds and increasingly moderate sea conditions earlier in the week.
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