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

Flood risk returning to northeastern QLD

15:00 EDT

A tropical low is expected to develop in the northwestern Coral Sea, which could lead to flooding rainfall to northeastern parts of Queensland over the next several days.

Texas city warms by 46C in one week

13:22 EDT

Last week's historic cold snap in the central United States is now well and truly thawing out, with some cities warming up by nearly 50ºC over the last seven days.

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