.FOR CALIFORNIANS it seemed like recognition. Last year a procession of storms, sustained by climatic rivers, eliminated a minimum of 21 folks and created almost $5bn-worth of damage throughout the condition. On February 4th this year the same form of hurricane once more wreaked havoc. Hurricane-strength winds buffeted the central coast near Big Sur. In Los Angeles famous people were saturated as they got to the Grammy honors' welcome mat. Mansions in the Hollywood Hills were dealt with in dirt. At least 3 people have perished. What are actually climatic streams, and are they a danger beyond The golden state?