San Francisco residents might feel the chill after the latest bout of isolated showers, as skies begin to clear today. According to a report from NWS San Francisco, the National Weather Service advises locals to expect a warming and drying trend from today until Saturday. However, the temperatures still hover notably below seasonal averages, making it feel colder than expected in mid-October. Adding to the forecast, the NWS Bay Area recommends grabbing an extra layer before stepping out this morning and preparing for another chilly night.
Surfers and beach-goers should also take heed, as there's an increased risk of sneaker waves and rip currents anticipated for Pacific Coast beaches by Saturday. The NWS San Francisco warns that this condition is caused by a long period of northwesterly swell. Patches of frost are also possible tonight in the more secluded interior of Monterey and San Benito Counties. While frost warnings may not be in effect, the NWS suggests taking the usual precautions to protect the vulnerable—people, pets, and plants alike.
Looking ahead into the long term, a high-pressure system will make its way over the Pacific Northwest, giving rise to a northerly gradient across California that will further drive down the moisture levels. This offshore flow has the potential to curb any burgeoning fire weather concerns, thanks in part to the recent wetting rainfall, which has somewhat quelled the typical fire season dangers, but hasn't eliminated the risk yet.
The marine forecast for San Francisco's coastal waters is looking up with fairer conditions as the low-pressure system moves along, bringing lighter winds that will later turn northerly, as per the NWS statement. Mariners should be aware though as the weekend could see the swell building up, however for those who are land-bound, the intriguing cut-off low that the weather service is monitoring represents an uncertainty, with varying model predictions on whether it will reintegrate into the jet stream or affect the area differently, the decreasing predictability affects our ability to foresee the weather pattern for the beginning of the next week.
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