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

IOD reaches new (dry) heights

13:48 EDT

The strongest positive Indian Ocean Dipole of the last two decades is limiting rainfall in Australia this spring.

Feral cat in Simpson Desert eats entire kangaroo carcass, surprising researchers

06:48 EDT

A PhD student studying the environmental impact of animal carcasses has filmed a feral cat eating an entire kangaroo in the Simpson Desert.

Queensland's weather outlook for summer forecasts fewer cyclones, more severe bushfires

00:06 EDT

Fewer cyclones are forecast but the Bureau of Meteorology (BOM) has warned a "dangerous cocktail" is brewing for the remainder of Queensland's fire season.