The Pacific Northwest is ripe for a major earthquake — and shaking and tsunamis wouldn’t be the only threats from such an event, according to new research. Coastal land would also sink nearly ...

The invasive species caused damage in and around San Francisco and Sacramento in the 1990s, but it's never been spotted before in the Pacific Northwest. Even 30 years later, it's still a mystery ...

Temperatures soared Sunday in the Pacific Northwest as Seattle broke its long-standing record for the hottest day this late in the season, reaching 88 degrees. Dry, gusty conditions helped spread ...

SEATTLE — Have you ever wondered why hurricanes are rare along the West Coast and don't hit the Pacific Northwest? Here's why: First, it's just plain colder.Water temperatures play the main role ...

Please drive carefully and bundle up. We want you all to be weather aware. Stay with the KOIN 6 Weather Team for the latest on the forecast across the Pacific Northwest as winter weather ramps up.

Climate Lab is a Seattle Times initiative that explores the effects of climate change in the Pacific Northwest and beyond. The project is funded in part by The Bullitt Foundation, CO2 Foundation ...

PORTLAND, Ore. (KOIN) — April is just days away and that typically means drier and warmer weather begins moving into the Pacific Northwest. April showers bring May flowers. That’s what’s ...

Known as Axial Seamount, it’s the most active volcano in the Pacific Northwest — though one most people haven’t heard of because it lies about 300 miles offshore and just under a mile ...