The storm is expected to dump 1 to 2 inches of rain along the coast and up to 4 inches in the valleys at rates that could cause problems. Some roads will be closed starting Wednesday.

The same storm system driving severe weather elsewhere in the country is fueling one of the most widespread and potent rounds of rain in Southern California since the historic January fires. In anticipation,

The second atmospheric river this week struck Southern California on Thursday, March 12, bringing heavy rain to coastal areas, valleys, and fire-impacted zones. Flood watches were issued for Los Angeles,