Yep, spot on there @wmedia. The only way to get low level smoke here is from local sources then it's trapped under lower level inversions. The high level western smoke eventually makes its way to the high atmosphere where the whims of the jet stream whisk it eastwards. This morning there was considerable fog around which eventually just looked like a misty day. But there may be some high level smoke today too. But not as much as the shot I took a couple of mornings ago. The sky was noticeably murkier with a smoky beige hue, but some low level mist added to the effect.I'm no meteorologist, but I would think the majority of what we're seeing at ground level is just mist. Smoke that has travelled that distance should be at a much higher altitude and would just be adding to the overall high-level haze.