Overview
- Forecasters report the breakdown of a prolonged high‑pressure ridge, ushering in cooler, cloudier conditions through Friday.
- Patchy to dense morning fog is widespread along coastal, bay and valley areas, lowering visibility for commutes in the Bay Area and Central Valley.
- Light precipitation is focused along the Central and Southern Coast, with most spots receiving a trace to a few hundredths of an inch and coastal slopes around 0.10–0.25 inch, highest on south‑facing mountains.
- Snow is confined to high elevations with minimal accumulation expected, and Tahoe will likely see little to no snow from this weak system.
- Isolated, fast‑moving thunderstorms are possible over higher terrain Thursday, then a drying and warming trend returns over the weekend as high pressure rebuilds, with models hinting at another rain chance late January into early February.