Fairfax Media Network

Weather Glossary - J

Search

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.

Display Your Local Weather

Weather News

Fire fuel loads increase after recent heat in NSW

16:34 EDT

Prolonged heatwave conditions are helping elevate the bushfire threat in parts of New South Wales this week, after a slow start to the season.

Queensland weather: Heatwave conditions to return on Wednesday

16:09 EDT

A four-day heatwave that begins on Wednesday will bring the same kind of conditions that saw more than 200 Queenslanders treated for heat stroke and dehydration last week.

Federal MP calls on banks to develop offsetting options to help farmers save in the good times

16:05 EDT

A Queensland MP is calling on the major banks to develop offsetting options for farm management deposits to help landholders save in the good times.