SEATTLE - Some communities across western Washington woke up to a slick start this morning, with icy spots in a few areas. Otherwise, clouds dominated early in the day as we moved through the morning ...

PORTLAND, Ore. (KOIN) — December’s powerful atmospheric river or Pineapple Express continues to send soaking rains and mild temperatures into western Oregon and southwest Washington on Tuesday. A KOIN ...

A storm called a ‘Pineapple Express’ is forecast to soak the Bay Area later this week. The National Weather Service says an “aggressive” atmospheric river is building up moisture in the Pacific Ocean ...

Atmospheric rivers are big business on the West Coast. These events carry moisture high in the atmosphere directly from the tropics to fuel intense rains across British Columbia. Every once in a while ...

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.