.FOR CALIFORNIANS it seemed like recognition. In 2014 a march of tornados, fuelled by atmospheric rivers, killed at the very least 21 people and also led to nearly $5bn-worth of damages across the condition. On February 4th this year the exact same sort of storm again created chaos. Hurricane-strength winds buffeted the central shoreline near Major Sur. In Los Angeles famous people were actually soaked as they came to the Grammy honors' welcome mat. Mansions in the Hollywood Hills were dealt with in dirt. A minimum of three individuals have passed away. What are climatic waterways, and are they a danger past California?