.FOR CALIFORNIANS it felt like remembrance. Last year a march of hurricanes, sustained through atmospheric rivers, killed at the very least 21 people as well as created virtually $5bn-worth of damages throughout the condition. On February 4th this year the exact same sort of storm again ravaged. Hurricane-strength winds buffeted the main shoreline near Major Sur. In Los Angeles personalities were actually soaked as they came to the Grammy honors' welcome mat. Estates in the Hollywood Hills were actually covered in dirt. At the very least three people have died. What are atmospheric waterways, and also are they a danger beyond The golden state?