.FOR CALIFORNIANS it thought that familiarity. In 2014 a parade of tornados, fuelled by climatic streams, killed at the very least 21 folks as well as induced virtually $5bn-worth of harm around the condition. On February 4th this year the very same type of tornado once more created chaos. Hurricane-strength winds buffeted the core coastline near Large Sur. In Los Angeles famous personalities were soaked as they reached the Grammy awards' ceremony. Residences in the Hollywood Hillsides were actually dealt with in dirt. A minimum of 3 individuals have died. What are actually climatic rivers, and also are they a risk beyond California?