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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

Tropical cyclone could form near Solomon Islands this week but poses no threat to Queensland, BoM says

09:38 EST

Queensland forecasters monitoring a low near the Solomon Islands that could become a tropical cyclone later this week say it is unlikely to threaten the state.

Grantham floods inquiry: Concerns raised about quarry wall years before 2011 flood, commission hears

20:14 EST

The Grantham Floods Commission of Inquiry has been shown graphic vision of the Lockyer Creek breaking its banks upstream from the Grantham quarry during the deadly 2011 disaster.

Parts of NSW on track for coldest July in around 17 years

19:12 EST

For many across New South Wales, July has been a cold month and for the younger generation, many won't be able to remember a month so cold.