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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

WA's desert drenching

13:05 EDT

Arid parts of Western Australia received a drenching overnight as thunderstorms passed overhead, with Meekatharra receiving more rain in ten minutes than they usually see in the whole month of November.

Haystack fires to burn grain producers who baled up failed crops, didn't get insurance

12:22 EDT

Fresh haystacks are exploding into flames across Victoria and South Australia and experts are warning it could be the start of a disastrous season.

Gippsland farmers given advice on becoming drought-resistant

12:09 EDT

Gippsland farmers are learning how to be more climate resilient as part of the Southern Gippsland Agricultural Climate Resilience Project.