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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

Wintery preview as snow covers alps

13:09 EST

The first in a pair of cold fronts brought a decent bout of snow to Australia's alps on Sunday and more is on the way tomorrow.

Sydney set to shiver

11:25 EST

If you thought getting out of bed was difficult in Sydney this morning, then you probably won't like tomorrow.

Sri Lanka floods leave at least 151 dead, aid agencies warn half a million displaced

06:43 EST

Sri Lankan rescuers yesterday continued the grim task of retrieving more bodies, buried beneath deadly mudslides triggered by monsoonal downpours which dumped a month's rain in single day.