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Weather Glossary - Q

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QFE

QFE is calculated by adjusting the station level pressure for the difference between the barometer level and the aerodrome reference level, assuming International Standard Atmosphere(ISA) conditions. An Altimeter set to QFE will read zero when the aircraft is on the runway.

QNH

The pressure setting used by aircraft altimeters to give an indication above MSL. The QNH pressure calculation assumes a standard ICAO atmosphere.

Most AWS stations installed by the Bureau of Meteorology report pressure in QNH rather than standard MSLP. The difference between the two values can be as much as 3hPa for elevated locations.

Quasi-stationary front

A front that shows little or no horizontal movement. By convention, the term applies to a front this is moving at 5 knots or less. The slow horizontal motion combined with considerable vertical motion of the warm air, often gives rise to persistent and sometimes severe amounts of precipitation leading to local flooding.

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Weather News

End in sight for Perth warm spell

11:31 EST

Perth's run of unseasonably warm and dry weather will come to an end on Friday when a powerful cold front crosses the southwest corner of Western Australia.

Who said Queensland isn't cool?

13:30 EST

Over the last week southern Queensland has seen a series of chilly mornings.

Summer rain sees drought declarations revoked for parts of Queensland while others wait

11:25 EST

Good summer rainfall has seen drought declarations revoked in parts of Queensland while others in the state wait in hope for rain.