29 June, NSW South Coast experienced a rare altostratus cloud formation due to north-westerly winds and mountain waves.

29 June, the South Coast of NSW saw a rare cloud formation of altostratus clouds, mistaken for storm clouds but not indicating rain. Meteorologist Jiwon Park from the Bureau of Meteorology explained these clouds formed due to north-westerly winds ahead of a cold front interacting with the Snowy Mountains, creating mountain waves. While mountain waves are common in the area, the specific cloud shape and extent are less frequent.

July 01, 2024
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