The American Museum of Western Art in Denver has two tours this month focused on how cloudscapes have evolved in paintings, which we’ve reported on here: Colorado’s #Cloudscape Is A Work Of Art. We wanted to understand why Colorado gets some pretty dramatic clouds in the sky, and turned to Bob Henson, an author and meteorologist who writes for the forecasting site Weather Underground in Boulder. Henson says Colorado has great cloud spotting because of the richness and purity of the air and the light, and because elevation changes help shape some of these clouds.