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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

Fire fuel loads increase after recent heat in NSW

16:34 EDT

Prolonged heatwave conditions are helping elevate the bushfire threat in parts of New South Wales this week, after a slow start to the season.

Queensland weather: Heatwave conditions to return on Wednesday

16:09 EDT

A four-day heatwave that begins on Wednesday will bring the same kind of conditions that saw more than 200 Queenslanders treated for heat stroke and dehydration last week.

Federal MP calls on banks to develop offsetting options to help farmers save in the good times

16:05 EDT

A Queensland MP is calling on the major banks to develop offsetting options for farm management deposits to help landholders save in the good times.