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540 line

Indicates the 540 decametre line on the 1000-500 thickness chart. Often used as a rough guide to determine when an airmass is cold enough to produce snowfalls on the Australian southern alpine areas.

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Weather News

Wild dogs have reached 'epidemic' levels, according to a western Queensland grazier

16:42 EST

A western Queensland grazier believes wild dogs have reached epidemic levels in her region.

Red sky in the morning, shepherd's warning

13:49 EST

Sydney-siders were graced with a beautiful sunrise this morning, a hue of orange and pink to start the end of the week.

Adelaide's April weather unseasonably warm, with only one day so far failing to hit 20C

13:18 EST

Adelaide's April 'warmwave' has seen only one day so far this month fail to hit 20 degrees Celsius ?? the first time that has happened in close to a century, the Bureau of Meteorology says.