Weather Glossary - J
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Jet max(Speed Max, Jet Streak) A point or area of relative maximum wind speeds within a jetstream. |
Jet streak |
JetstreamRelatively 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. |
JTWCJoint Typhoon Warning Center. The JTWC issues warnings and forecasts for tropical systems across the Pacific and Indian Oceans. |
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Weather News
Perth Easter weekend weather forecast to be among hottest on record as police caution beachgoers
19:12 EST
Beachgoers have been urged to stick to social distancing rules this Easter long weekend with Perth and parts of the South West set to experience potentially record-breaking heat.
Vanuatu faces 12-month recovery as Cyclone Harold heads for Fiji
15:09 EST
Disaster officials in the small Pacific nation of Vanuatu are working around the clock to assess the damage that a category five cyclone has caused to remote islands, as Cyclone Harold heads for Fiji.
More rain on the way as parts of NSW recover from drought
10:22 EST
More than 15 percent of NSW has come out of drought since the end of last year, with more useful rain on the way in the coming days.
