Supercell over Montana
March 1, 2017 [CLICK ON IMAGE FOR HIGH RESOLUTION, Sean R. Heavey] Although it may seem like an alien mothership, it’s actually a impressive thunderstorm cloud called a supercell. Such colossal storm systems center on mesocyclones — rotating updrafts that can span several kilometers and deliver torrential rain and high winds including tornadoes. Jagged sculptured […]