.FOR CALIFORNIANS it seemed like familiarity. Last year a march of storms, fed through climatic rivers, gotten rid of at least 21 people as well as induced nearly $5bn-worth of damage throughout the condition. On February fourth this year the very same kind of storm once more wreaked havoc. Hurricane-strength winds buffeted the main coastline near Large Sur. In Los Angeles famous personalities were saturated as they came to the Grammy awards' red carpet. Estates in the Hollywood Hillsides were covered in mud. At least three folks have actually perished. What are atmospheric rivers, and also are they a danger beyond The golden state?