The Cram fire is the largest in the state, expanding overnight to more than 64,000 acres, according to the Northwest Interagency Coordination Center. It is zero percent contained, while the Elk fire in Klamath is 39% contained and has burned around 2,700 acres.

Multiple U.S. states and Canadian provinces are experiencing poor air quality from wildfire smoke. Here's where.

Wildfire smoke degrades air quality in swaths of Ontario, with Toronto ranking among the worst in the world on Monday.