A pineapple express is a type of strong atmospheric river that carries moisture towards the western U.S. causing the risk of flooding and heavy snow.

Days after an atmospheric river brought record-setting rainfall to California, the state is in the crosshairs of another rainy storm system.

Parts of northern California could see up to a foot of rain, but Phoenix will remain dry and warmer than usual.

A warm, wet storm originating in Hawaii will be pulled north toward California bringing heavy rain and localized flood risk.

SO THIS IS OUR ATMOSPHERIC RIVER. REMEMBER, THAT’S JUST MOISTURE HIGH UP IN THE ATMOSPHERE. THAT DOESN’T MAKE RAIN ON ITS OWN. YOU NEED STORM SYSTEMS TO COME THROUGH AND CARRY THAT MOISTURE ...

The KCRA 3 weather team is issuing Impact Days through Tuesday because back-to-back storm systems will bring waves of rain and snow that can affect outdoor activities and travel.