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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

Wet and windy day ahead for northeast NSW

15:26 EST

Northeast NSW will receive a bust of rain, wind and storms this week as a low pressure system forms over the Tasman Sea.

Perth still thirsty after weekend storms

11:27 EST

Perth received its heaviest rain since mid-January on the weekend, although it wasn't enough to make up for the city's rainfall deficit of the last few months.

Unseasonable warmth continuing for South Australia

16:56 EST

A slow moving airmass and mostly sunny skies has brought well above average temperatures to much of SA, and will continue to on Monday.