Wilsonville

Two domestic cats in Oregon died in December 2022 from highly pathogenic avian influenza, the bird flu that began spreading rapidly in 2020. 

Officials say a wildfire in Southwest Washington that ballooned Sunday, causing regional air quality issues, may have been started by a firework or firearm.

When will the second heat wave round end in the Portland area?

The sea lions have posed a long-running conundrum for wildlife officials, pitting mammals protected under federal law against protected — and valuable — fish runs.

It’s been a relentlessly rainy January, with no sign of slowing down. And all the precipitation has put Portland-area roads at risk of being buried by landslides.

Algae isn't just causing swimmers' itch anymore; it's threatening water supplies. State regulations are starting to address it.

After hitting 100 degrees Wednesday, Portland’s light-rail trains are operating at slower speeds amid concern that the heat will cause tracks to expand and risk a derailment. In exchange for the slow service, inspectors are not checking riders for tickets.

Portland could see record breaking temperatures over the weekend, with weather conditions similar to the deadly heat dome event in 2021, which prompted swift action from city and local organizations to help residents. But some say more needs to be done.

The EPA has designated portions of the Upper Columbia River as a Superfund site due to pollution primarily from Canadian industrial sites, opening up federal funding for cleanup.

A power line fell on a car in Portland, killing three people and injuring a baby during an ice storm that turned roads and mountain highways treacherous in the Pacific Northwest.