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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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Biggest rain since last winter soaking NSW coast

15:26 EDT

Parts of the New South Wales coast are in for their biggest downpours since last winter, bringing a much needed drink to gardens and parks but also causing some flooding.

Adelaide to welcome autumn with heatwave

13:05 EDT

After a respite from intense summer heat over the last couple of weeks, Adelaide is set to sizzle once again.

Warmer seas give east coast rain a helping hand

15:19 EDT

If you wanted to stay a bit warmer today, a dip in the ocean is probably your best bet, despite the rain.