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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Rain deficit worsening in western NSW

16:08 AEST NSW, like most of Australia, has been stuck in a stagnant weather pattern for the last week, with a high pressure system to the south of the country blocking cold fronts from bringing any substantial rainfall.

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