Heavy rain and excessive snowmelt from the incoming atmospheric river will lead to extreme runoff that can fill rivers beyond their flood stage depth. The Yakima River and the Naches River are ...

Columbia River navigators are growing worried as a project to put a 100-mile power transmission line under the river charges ...

The first samples were collected Monday in a new program to regularly test the water of the Columbia River in the Tri-Cities area for toxins linked to blue algae after three dogs died last year. Last ...

The Tri-Cities can expect wind, heavy rain and high water in the Yakima River early this week after an atmospheric river ...

There will be music, visits with Santa and Mrs. Claus, food vendors, and family-friendly activities, including holiday crafts ...

Traffic has been slowed and backed up on Interstate 82 between Kennewick and Umatilla at times on some recent days due to work on the bridge across the Columbia River between Washington and Oregon.

To help you find the best local spots for holiday cheer, the Tri-City Herald has created a guide to the top light displays. A dozen boats decked out with holiday lights cruised the Columbia River to ...