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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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Weather News

Wet week for NSW

20:12 EST

Three rain-bearing systems will traverse New South Wales within the next seven days, rounding out a bumper May.

Big surf closes beaches across Sydney, NSW

18:13 EST

Surf lifesavers have issued a warning to beachgoers as a large swell closes stretches of the New South Wales coastline.

Dampened SA in for more rain but also cold, strong winds

18:01 EST

Rain has fallen across a large part of South Australia during Wednesday and there is more to come, mainly on Friday, coinciding with cold winds.