A pineapple express is a type of strong atmospheric river that carries moisture toward the western U.S., bringing the risk of ...

The atmospheric river's effects are expected to last at least through Tuesday, one meteorologist told Newsweek.

Weather systems that affect the West Coast of the United States often have their origins in the northern Pacific Ocean. This is because the jet stream usually flows in a general west-to-east fashion.

Pineapple Express has drenched Northern California in the last few days—but what exactly is it? How common is it? Also, go ...

The wet weather fueled by an atmospheric river represents an about-face after a dry January helped ignite fires that ...