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WEATHER UPDATE – HOT AND WINDY
6 September 2012
Some extreme, early September weather has rolled across much of the broadcast area in the way of high temperatures and very strong winds making for some nasty early season bushfire conditions with 80 burning across NSW on Thursday.
It’s all due to a large pool of hot air that has built up over Central Australia due to a lack of cloud in recent weeks. Powerful polar storms are still ripping across the southern ocean generating large pressure gradients causing increased wind speeds from the NW pushing that heat across the broadcast area.
On Friday those NW winds will shift to the WSW and cooler air will then move in dropping temperatures back closer to average. It’s another dry change with little in the way of showers or storms.
It will take until Sunday for the winds to die down completely.
Weather Query
Hi Gav. can you explain why you say the seasons change on the 1st of a month. Only Aus, NZ & RSA do this. The rest of the world do it on the Solstices/Equinoxes. Just bcos we get warm weather in Sept and even sometimes in August doesn’t mean winter has ended. The Nth Coast just can be warmer than say Melb at this time of the year. Try this: find the average temps (daily maximas since records began) for the 6 capitals using traditional seasons as Spring=Sept/Nov, Summer= Dec/Feb, etc… and then do it using the 13 weeks after each solstice/equinox. You’ll find a more defined seasonal change using the latter method. Even Brisbane and Hobart’s data will show this despite them having a smaller range of maximums than the other 4 cities.
Keith