.FOR CALIFORNIANS it believed that familiarity. In 2014 a procession of hurricanes, fuelled by atmospherical streams, killed at least 21 people and resulted in almost $5bn-worth of damages around the condition. On February fourth this year the exact same type of tornado once more ravaged. Hurricane-strength winds buffeted the core shoreline near Significant Sur. In Los Angeles stars were actually soaked as they came to the Grammy honors' welcome mat. Mansion houses in the Hollywood Hills were actually dealt with in mud. A minimum of three people have died. What are actually climatic rivers, and also are they a risk past California?