Atmospheric rivers rock the West with relentless heavy rain, snow
Atmospheric river after atmospheric river is rocking the West with relentless heavy rain and snow. This moisture, originating from Hawaii, is known as a Pineapple Express. A second storm is forecast to follow closely behind the first, extending the heavy rain and snow through Wednesday. FOX Weather is joined by Marty Ralph, director of the Center for Western Weather & Water Extremes, with the latest.