normally would on a clear day during the first week of june. and the reason for in is remarkable. in the canadian province of alberta massive wildfires are ranging, almost a million acres on fire. almost a dozen majors fires in all. 10,000 canadians are evacuate the and on the run. there is enough smoke to turn day into night in the affected areas. but here is where we come in and the satellite imagery of in is stunning. from montana east to maine as far south as north carolina for days the smoke has been flowing down over the united states. in the new york area for example, if you know what to look for, it is noticeable. it keeps the sky from becomings deep blue marble on a sunny day and instead gives the sky a faint gray sheen. it s more pronounced the nargter north you go. very nounsed at sunset.