Portland’s air quality was the worst of major cities in the world Friday morning, due to Oregon and Washington wildfires
Marine air begins to work inland over the next couple of days with a modest westerly breeze. This will allow air quality and visibilities to begin to improve over northwest OR and southwest WA, as seen in this computer model for today (Fri). Purples depict the densest smoke. pic.twitter.com/U7ADxX4smw
— NWS Portland (@NWSPortland) September 11, 2020
Portland Air Quality
