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 to The 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.”
More info : Wikipedia (h/t: dailytelegraph)
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OMG, id piss myself if i saw this! Especially while on the beach!!!! :O
Man, It would scared the shit out of me for sure.
The people on the beach don't look like they noticed anything
Pshaw!!! They're swimming with Box jellyfish, Blue ringed octopi, and yellow bellied sea snakes. What does a little cloud matter to them?
OMG, id piss myself if i saw this! Especially while on the beach!!!! :O
Man, It would scared the shit out of me for sure.
The people on the beach don't look like they noticed anything
Pshaw!!! They're swimming with Box jellyfish, Blue ringed octopi, and yellow bellied sea snakes. What does a little cloud matter to them?