Weather Glossary - Other

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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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Another frosty weekend ahead

13:48 AEST There have been some remarkably low temperatures recorded across Australia during the last week and more frosty starts are just around the corner.

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