Aug 15, 2017
VANCOUVER, Canada—For nearly two weeks, beginning August 1, the skies over Vancouver were filled with the smoke of forest fires burning in central and northern British Columbia. The smoke from those fires and others farther afield has waxed and waned over much of North America since July. Three days ago, Vancouver and coastal BC and Washington State gained a respite thanks to a weather front from the Pacific Ocean that pushed the smoke eastward. But the respite could end soon, depending on the vagaries of weather patterns.