For several days smoke from Canadian wildfires has been spreading across much of the Eastern part of the nation, brush fires in parts of the U.S. are now adding on to that. Even in the absence of clouds instead of looking blue the sky has been hazy milky white daytime and more colorful than usual at sunrise and sunset. This is from Monday morning:

This afternoon blue arrows point to smoke:

It has made it all the way “across the pond” (Atlantic Ocean) this is from the UK Weather Office:

The smoke is too high in the atmosphere to be a breathing hazard and too high to smell.

Models show it will persist a couple more days but will be thinning out:

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