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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 to soak NSW, even already flooded areas

15:50 EST Rain is about to develop on the northern and central coast of New South Wales then become heavy and spread inland, bringing the biggest falls in months to some areas.

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