coastal low forecast to bring gale-force winds, torrential rains

East Coast Ladges usually condens rapidly for 12 to 24 hours and is one of the more dangerous air systems to influence the eastern coast.

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For the air system that will hit Sydney to a low level of east coast on Tuesday, it must meet certain criteria, including how long it occurs, how long it remains, if the pressure gradious has a closed circulation and is associated with severe air.

According to the Air Office, these air systems are also on the coast of Africa and America – where they are often called East Coast cyclones.

On the eastern coast of Australia, especially in South Queensland, NSW and Eastern Victoria, mostly regular coastal low in June and in autumn and winter.