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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

Plenty of fuel this bushfire season

14:34 EST

One of Australia's wettest winters on record has primed parts of the country for above-average bushfire potential this season.

Flood-ravaged Ouse famers urged to swallow pride to receive relief grants

09:23 EST

Farmers at Ouse in the Derwent Valley deserve joint state and Commonwealth disaster relief grants, the Tasmanian Flood Recovery Taskforce says.

Rain transforms The Red Centre

18:20 EST

The heaviest August rain in decades turned central Australia into an eerie place this week, causing waterfalls and thick fog.