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Weather Glossary - Z

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Zephyr

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.

Zulu

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

Hottest May night on record for 20 Queensland cities and towns

16:00 EST

Vast areas of Queensland have experienced the hottest May night since records began, some of which stretch back to the 1800s.

Capital city April wrap-up

14:00 EST

For the majority of Australia April was warmer and drier than average.

Melbourne storm: Trees uprooted, homes damaged by out-of-season weather

12:56 EST

Strong winds and heavy rain lashed parts of Victoria overnight, with hundreds of residents calling the State Emergency Service (SES) for help.