.FOR CALIFORNIANS it felt like familiarity. In 2015 a ceremony of hurricanes, fuelled by atmospherical rivers, killed at least 21 folks and caused virtually $5bn-worth of harm around the state. On February fourth this year the exact same form of hurricane again ravaged. Hurricane-strength winds buffeted the main shore near Significant Sur. In Los Angeles personalities were saturated as they reached the Grammy honors' red carpet. Residences in the Hollywood Hillsides were covered in dirt. At least three people have actually passed away. What are climatic rivers, and also are they a danger beyond California?