.FOR CALIFORNIANS it felt like familiarity. In 2013 a ceremony of storms, fuelled by atmospherical streams, killed at the very least 21 people and also led to almost $5bn-worth of damage across the condition. On February 4th this year the exact same form of hurricane once more ravaged. Hurricane-strength winds buffeted the core shore near Big Sur. In Los Angeles stars were actually soaked as they got to the Grammy awards' welcome mat. Residences in the Hollywood Hillsides were actually covered in dirt. At the very least three folks have died. What are actually atmospheric rivers, as well as are they a danger beyond California?