Issued on: July 20, 2026
Large wildfires are ongoing in both Canada and the Pacific Northwest region. Ambient smoke from fires in Canada and Colorado has been hanging over the area for the past few days and will continue to do so. A weak cold front will move through the area Wednesday morning changing mid-level flow to a northwesterly pattern. This will draw additional smoke from the wildfires in the Pacific Northwest which will settle into the lower levels. Expect particulate levels to remain in the Moderate Category for the remainder of the week. Stagnant flow over the state may also result in ozone levels flirting with the moderate category towards the end of the week with slightly higher values in the metro areas.