Overview
- Nearly 6 million people are under the Weather Prediction Center’s highest excessive‑rainfall risk on Wednesday.
- Los Angeles County ordered evacuations for 383 properties with deputies going door to door, with additional orders or advisories in Ventura, Orange and Santa Barbara counties.
- Gov. Gavin Newsom’s administration prepositioned Cal OES, National Guard and rescue teams, while Caltrans and CHP prepared for road closures and outages.
- Rainfall rates may exceed 1 inch per hour with 4–8 inches expected in coastal and valley areas and up to 8–12 inches in foothills, alongside mountain gusts up to 80 mph and high debris‑flow danger on burn scars.
- A second atmospheric river is forecast Thursday through Friday, raising flood risk to Level 3–4 for more than 15 million people as the Sierra Nevada braces for 4–6 feet of snow and severe holiday travel impacts.