.FOR CALIFORNIANS it felt like recognition. Last year a procession of hurricanes, fuelled through atmospherical rivers, killed at the very least 21 people and created almost $5bn-worth of damages around the state. On February fourth this year the exact same form of storm once again created chaos. Hurricane-strength winds buffeted the core coast near Major Sur. In Los Angeles celebs were actually saturated as they reached the Grammy honors' ceremony. Residences in the Hollywood Hills were dealt with in mud. A minimum of three individuals have perished. What are climatic waterways, and are they a risk beyond The golden state?