Overview
- A Wind Advisory covers much of the region from 10 p.m. Tuesday to 4 p.m. Wednesday, with widespread southerly gusts of 35–45 mph and isolated 55–60 mph on higher peaks such as Mount Diablo and Mount Saint Helena.
- Heaviest rain is forecast in the North Bay with roughly 1–2.5 inches in coastal ranges and valleys, tapering south to about 0.25–1 inch in San Francisco and near one‑third of an inch around San Jose.
- The main band arrives late Tuesday night into Wednesday morning, likely slowing the morning commute, with a 10%–20% chance of isolated thunderstorms during the frontal passage.
- Concurrent coastal hazards include king tides and high surf, with a coastal flood advisory through at least Saturday for low‑lying shores and Central Coast wave heights of 12–16 feet with local sets to 18 feet.
- Forecasters say the storm will be mostly beneficial for reservoirs and near‑term wildfire risk, with showers diminishing and milder, drier weather returning Thursday.