Overview
- Wind Advisories are in effect for parts of the Bay Area and Central Coast from late Wednesday to Thursday morning, with southerly gusts up to 45–55 mph and higher over peaks and passes.
- Official guidance projects 1–2 inches of rain for many coasts and valleys and 2–4 inches or more in mountains, with significant Sierra snowfall and a better than 50% chance of 24 inches at Tuolumne Meadows.
- Rain moves into Northern California overnight with a very wet Thursday morning commute, then shifts south, with Los Angeles and Ventura counties likely to see the heaviest Thursday afternoon and evening.
- Flash flooding, mudslides and debris flows are a concern in burn-scar and steep terrain areas, with rainfall rates up to 0.75 inch per hour and a chance of brief peaks near 1 inch per hour; Flood Watches are possible for vulnerable areas.
- Lingering showers Friday and possible wrap-around moisture into Saturday could follow the main surge, offering short-term wildfire risk relief and modest drought help if forecast totals verify.