https://www.mercurynews.com/2022/12/01/storm-tracker-map-where-its-raining-in-the-bay-area-3/

The heaviest rain in the storm arriving Thursday is expected to reach the Bay Area during the morning commute, the National Weather Service said.

In the Sierra Nevada, heavy snow is expected Thursday from morning to evening — up to 3 inches of snow per hour. The best time to travel is Friday afternoon to Saturday afternoon, before another storm moves in.