.FOR CALIFORNIANS it believed that familiarity. In 2014 a march of hurricanes, fuelled through atmospherical rivers, killed at least 21 individuals and also triggered almost $5bn-worth of harm all over the condition. On February fourth this year the exact same type of storm once more ravaged. Hurricane-strength winds buffeted the central shoreline near Major Sur. In Los Angeles celebs were actually saturated as they arrived at the Grammy awards' welcome mat. Mansions in the Hollywood Hills were covered in dirt. A minimum of 3 people have passed away. What are actually atmospherical waterways, and are they a hazard past California?