Bay Area/ San Francisco

Bay Area Hit with Frost Advisory and Freeze Watch, NWS Warns of Cold Snap Risks to Vulnerable Communities

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Published on January 26, 2025
Bay Area Hit with Frost Advisory and Freeze Watch, NWS Warns of Cold Snap Risks to Vulnerable CommunitiesSource: Derrellwilliams, CC0, via Wikimedia Commons

The San Francisco Bay Area is bracing for a series of chilly mornings as frost and freeze conditions loom over the region. Several areas are under a Frost Advisory until 9 AM this morning and under a Freeze Watch from late tonight through Wednesday morning. According to the National Weather Service San Francisco CA (NWS), this weather pattern threatens to inflict hazardous conditions on populations without shelter or adequate heating. It could put plants, pets, and unsheltered people at significant risk.

In detailed reports by NWS San Francisco, gusty winds are also at play, particularly in the North Bay’s interior mountains, where gusts up to 50 mph have been recorded. Although the Wind Advisory is slated to expire at 10 AM today, residents were alerted to brace for the blustery conditions that prevailed this morning. Furthermore, scattered showers and a low chance for convective activity continue today across the Central Coast even though rain totals remain generally light.

The operational team at NWS considered ending the Wind Advisory across the North Bay interior mountains earlier this evening but "opted to continue the Advisory until it was clear that winds would no longer be a threat," per the National Weather Service. Meanwhile, rain showers, accompanied by small hail at times, have been spotted in Monterey and from the Santa Cruz Mountains near Ben Lomond, varying in intensity with the ebb of the low-pressure system.

The transitional weather has paved the way for a dry and warmer period starting Monday as the ridge system returns to foster near-seasonal daytime highs. Still, the shallowing mercury during nighttime maintains the theme of potential peril, prompting NWS to emphasize the remembrance of 'the Four P’s of Winter Weather': People, Plants, Pets, and Pipes. This advice serves as a caution during low temperatures, which especially impact the vulnerable members of our community. An increase in confidence for rainfall emerges starting Friday into the weekend, although details remain fuzzy, as stated in a report by NWS.