Amazing Kelvin-Helmholtz Wave Clouds Over Birmingham, Alabama – Dec 16, 2011

“The breaking waveforms of ‘Kelv-Helmz’ (as they aren’t known)  are the result of shearing winds up at cloud level.

A particular type of turbulence can develop in a layer of Cirrus cloud, which happens to form below an inversion* between air currents of differing speeds and/or directions.

Sea waves break as their bases are slowed down upon reaching shallow water and their crests surge ahead. Cloud waves break in the same way: when their crests are pushed ahead of their troughs by the difference in air currents.”

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More information cloudappreciationsociety.org

Source and author:  *   (youtube)

One response to “Amazing Kelvin-Helmholtz Wave Clouds Over Birmingham, Alabama – Dec 16, 2011

  1. How cruel! Birmingham just experienced the F-5 tornado that ripped and almost leveled Birmingham. That video looks like a tornado. God Bless Birmingham!

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