.FOR CALIFORNIANS it thought that familiarity. In 2015 a ceremony of storms, fuelled by atmospheric rivers, eliminated at least 21 people and also created almost $5bn-worth of harm all over the state. On February fourth this year the same form of storm again created chaos. Hurricane-strength winds buffeted the main coastline near Large Sur. In Los Angeles celebs were soaked as they reached the Grammy honors' welcome mat. Residences in the Hollywood Hillsides were actually dealt with in dirt. At the very least 3 individuals have actually passed away. What are actually atmospheric streams, and are they a threat past The golden state?