LOS ANGELES, Feb. 20 (Xinhua) -- A powerful storm continues to slam the U.S. West Coast on Tuesday with heavy rain, snow and wind, as flood watch remains in effect across California.
Southern California is once again "under the gun" for numerous instances of flash flooding as the main band of atmospheric river rainfall focuses through the overnight hours there, said the U.S. National Weather Service (NWS) Weather Prediction Center.
