A Supercell Thunderstorm Cloud Over MontanaImage Credit & Copyright: Sean R. Heavey
http://apod.nasa.gov/apod/ap130505.htmlIs that a spaceship or a cloud? 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 clouds adorn the supercell's edge, while wind swept...
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