[www.keralites.net] Cloud Tsunami

 

Breathtaking "Cloud Tsunami" Rolls Over Sydney

Last Friday, a "cloud tsunami" startled the residents of New South Wales, Australia. Technically a "shelf cloud," those on Bondi Beach saw what appeared to be a massive, several-kilometer-long wave stretching across the sky. The Australian Bureau of Meteorology issued warnings to the surrounding areas due to thunderstorms, heavy rains, and strong winds.

"[The shelf cloud] is created by a cold outflow from a thunderstorm lifting the moist air very abruptly, it is an outflow feature from a thunderstorm," forecaster Christopher Webb explained toThe Daily Telegraph. "When the rain from the thunderstorm comes vertically down it drags the air with it, it spreads horizontally and forms a gust front, you get the humid air being lifted abruptly from the outflow of the thunderstorm."

Image credits:Richard Hirst

Image credits:aliialii

Image credits:Will Reid

Image credits:guysebastian

Image credits:Parker Mason

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Posted by: Fereshteh Jamshidi <fayjay81@yahoo.com>

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