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Jet max

(Speed Max, Jet Streak) A point or area of relative maximum wind speeds within a jetstream.

Jet streak

A local wind speed maximum within a jetstream.

Jetstream

Relatively strong winds concentrated in a narrow stream in the atmosphere, normally referring to horizontal, high-altitude winds. The position and orientation of jetstreams vary from day to day. General weather patterns (hot/cold, wet/dry) are related closely to the position, strength and orientation of the jetstream (or jetstreams). A jetstream at low levels is known as a low level jet.

JTWC

Joint Typhoon Warning Center. The JTWC issues warnings and forecasts for tropical systems across the Pacific and Indian Oceans.

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Cold weather: Icy morning tipped for NSW as wild winds ease, bureau says

00:05 EST

Icy and windy weather affecting parts of the NSW central-west and Blue Mountains will continue into Sunday, although strong coastal winds are easing, the Bureau of Meteorology (BoM) says.

Cold front delivers for boardriders

13:47 EST

After a slow start to the snow season and a week of small to no surf, an intense cold front has brought some happiness to snowboarders and surfers in Victoria and New South Wales.

Above average rainfall for WA

13:39 EST

Parts of WA have been receiving persistent showers in recent days, propelling some locations well past their monthly average.