Extreme weather and severe thunderstorms are a common thing year round in Colorado. Storms blow in and out pretty quickly. In the spring all our weather heads out east of the Rockies to Nebraska and Kansas and that's when tornadoes start to spring up. The mountain cool air hitting the warm air of the country plains. Every year seems to get more extreme. This a scenic view from north Boulder County Colorado along the foothills looking south to Haystack Mountain and Boulder. A Lightning anvil crawler is striking above haystack like an octopus monster in the sky. Photo: (C) James "Bo" Insogna