Wednesday’s hike at Willamette Pass and Maiden Peak gave first hand / eyeball experience of what the fires were doing. Thursday’s weather was worse; stagnant air, more smoke and additional fires created dangerous conditions to be outside & active. I held a day hike permit for Obsidian TH to PCT in 3 Sisters, but need…

Inversion (Wikipedia): “In meteorology, an inversion (or temperature inversion) is a phenomenon in which a layer of warmer air overlies cooler air. Normally, air temperature gradually decreases as altitude increases, but this relationship is reversed in an inversion” After looking at the weather for a hike on the way to PDX, I decided that William Finley or Mary’s Peak would suffice – decide…