California at risk of life-threatening flooding from new atmospheric riverAs the moisture-packed storm moves inland over the Golden State, it will carry warm air into higher elevations, which could lead to rapid snowmelt and create a dangerous flooding situation. GET THE FREE ACCUWEATHER APPOn Friday, the atmospheric river will extend for more than 2,400 miles from California to the southwest of Hawaii. "Where possible, road crews and property owners may want to open up the storm drains to minimize the flooding risk." The risk of street flooding and roof collapses includes communities such as Tahoe City, California. The intensity, timing and duration of the storm and the next atmospheric river are still being gauged by AccuWeather meteorologists.