.FOR CALIFORNIANS it felt like remembrance. In 2013 a procession of hurricanes, fuelled through climatic streams, killed at the very least 21 individuals and also created almost $5bn-worth of harm across the state. On February fourth this year the very same form of tornado again ravaged. Hurricane-strength winds buffeted the core coast near Huge Sur. In Los Angeles stars were actually soaked as they got to the Grammy honors' ceremony. Estates in the Hollywood Hillsides were covered in mud. A minimum of three individuals have perished. What are actually climatic streams, and also are they a risk beyond California?