An impressive thunderstorm cloud called a supercell, that looks like an alien mother-ship. Such huge storm systems center on mesocyclones – rotating updrafts spaning several kilometers and deliver torrential rain and high winds including tornadoes. Image © Sean R. Heavey
Jagged sculptured clouds adorn the supercell’s edge, while wind swept dust and rain dominate the center. A tree waits patiently in the foreground. The above supercell cloud was photographed in July west of Glasgow, Montana, USA, caused minor damage, and lasted several hours before moving on.
source APOD
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