
The Bay Area is bracing for an onslaught of inclement weather as the National Weather Service in San Francisco has issued several alerts predicting a cycle of storms that could significantly impact holiday travel. NWS San Francisco advises that a Dense Fog Advisory is in effect through 11 AM for multiple regions, including the North Bay Interior Valleys, East Bay Interior Valleys, Salinas Valley, and Monterey Bay. Motorists are cautioned to slow down, use low-beam headlights, and allow extra time for travel due to reduced visibility.
Following today's fog, light rain is expected to return to the area late Thursday and continue through Friday, considered generally beneficial after a dry spell. The NWS also mentions that the weather shift marks the start of a more turbulent pattern, with increasing confidence in a series of storms kicking off on December 21 and lasting through the Christmas period. Holiday travelers should stay informed about the changing conditions, as the storms could impact travel across the West Coast.
In a detailed forecast discussion, NWS San Francisco elaborates on the expected weather patterns. The imminent storms could bring impactful rain and wind by this Saturday, persisting well into next Wednesday. The forecast advises that today is the final opportunity to make home preparations before a week of continuous rainfall begins. The NWS urges all to secure loose outdoor items, clear out gutters and storm drains, and exercise caution near swiftly flowing creeks and low-lying areas prone to flooding.
SF Bay Area residents should take this window seriously, as the prolonged rainfall presents cumulative risks. "Minor/nuisance flooding of urban, low-lying, and poor drainage areas as well as flashy creeks/streams will likely happen at some point, potentially as soon as Saturday," warns the NWS San Francisco. The weather will not only play a disruptive role on a per-storm basis but also cumulatively, exacerbating the potential for flooding and other storm-related hazards.
For mariners, a Dense Fog Advisory is in effect, mirroring the onshore cautions, and will remain in place until 11 AM today for Monterey Bay. Moreover, a Small Craft Advisory is also expected to be announced for late this week, highlighting the necessity for heightened awareness on and off the land. The forecast discussion notes that moderate to heavy rainfall is expected in other regions, including the North Bay, Santa Cruz Mountains, and Big Sur Coast. Meanwhile, Monterey Bay Terminals and other local airports may experience variable conditions, ranging from dense fog to clear skies, as the day progresses.
As these storm systems queue up to drench Northern California, stay informed by continually checking the latest updates from weather service channels. This sustained period of wet weather will sorely test the Bay Area's infrastructure, and the best defense against the elements is early and thorough preparation.









