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Weather Glossary - Z



A light, warm breeze. Derived from Zephryros, the personification by the ancient Greeks of the warm west wind that was thought to prevail around the time of the summer solstice.

Zonal flow

Large-scale atmospheric flow in which the east-west component (i.e., latitudinal) is dominant. The accompanying meridional (north-south) component often is weaker than normal. Compare with meridional flow. Weather systems tend to move past quickly in a zonal flow regime.


Greenwich Mean Time (GMT). Centred on zero degrees longitude. For scientific purposes this time zone is also known as Universal Time (UTC). All meteorological observations worldwide are reported using this time (for ease of comparison and computation). This timezone is commonly suffixed with 'Z'.

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Weather News

Storms still affecting south-east Queensland

19:22 EDT

Towns in Queensland's south-east are being hit by storms, but Brisbane has escaped much of the rainfall and the weather is no longer regarded as severe.

Dry spring set to continue across NSW

17:59 EDT

The start of spring has been unusually dry across most of New South Wales.

Queensland coast warned to prepare for hot, fast fire season

14:52 EDT

The Queensland Rural Fire Service says fires on parts of the state's coast will burn hotter and faster this season due to the ongoing dry.