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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Halloween weather across Australian capital cities

09:51 AEDT From wet and stormy across the east, to dry and cool in the south, how will the weather affect your Halloween trick or treat plans tonight?   In the east, a low pressure trough and cold front is bringing widespread areas of rain, storms and cloudy conditions to Canberra, Sydney and Brisbane.

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