Remarkable satellite imagery from this evening starkly depicts worsening boreal forest #fire situation in #Canada: numerous large #pyrocumulus (including some pyrocumulonimbi injecting smoke high into atmosphere) and a huge cyclonic "#smokestorm" swirl over central Alberta. #ABwx pic.twitter.com/fZQBP3Rg4L

— Dr. Daniel Swain (@Weather_West) May 19, 2023