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

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

This story was updated to correct spelling in headline. An atmospheric phenomenon called a Pineapple Express is expected to bring heavy rains and snowfall to California and the Northwest this week.

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.

The first of two “Pineapple Express” storms arrived in Southern ... rain has fallen in the Santa Ynez mountain range, and areas north of Morro Bay have seen between 2 and 5 inches of ...

The first of two "pineapple express" storms has arrived in Southern California after delivering a stronger-than-expected ...

Call it an atmospheric river, a Pineapple Express or just weather, but some parts of California and the U.S. Northwest are being slammed by up to foot of rain before the storm runs out of moisture ...