'Cloud tsunami' rolls in over Sydney
Timelapse footage from Twitter users Will Reid and Hugo Vann show an amazing bank of storm clouds moving in towards Sydney, Australia on Friday.
Weather agencies have warned of severe weather, with expected thunderstorms likely to bring hailstones and heavy rainfall. The wider New South Wales region is also likely to be affected.
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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."
Posted by: Cool Kis <cooolkis@gmail.com>
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