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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

Australia's southern winters are drying out. Here's why

11:14 EST

Winter rains are in decline across southern Australia, and while it is too early to say beyond doubt it is due to climate change, scientists say it is not just about climate variability.

Brisbane weather: City and Ipswich set to sizzle through scorcher weekend

07:00 EST

Despite a cool start to spring, south-east Queensland is set for an unseasonably hot weekend.

Sydney's driest start to spring on record

17:56 EST

Sydney is having its driest start to spring on record and the city was particularly parched today.