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.

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

What is a Pineapple Express? It's a type of atmospheric river that forms a long, narrow tract in the Earth’s atmosphere. This jet stream gathers moisture from the tropics near the equator and ...

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 ...

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

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.

Atmospheric rivers, also described as "rivers in the sky," cause more than 80 percent of all flooding damage across the West ...