40 million people under storm advisory as record rainfall floods Southern California

More than 500,000 customers in California are without power as an intense storm moves slowly across the Southern part of the state. The rainfall is fueled by an atmospheric river, a wide-reaching plume of moisture that acts like a firehose, tapping into warm, moist air from the tropics that storms then unload as drenching rainfall and heavy snow over land. #cnn #news #california #rain #flood #atmosphericriver #losangeles