Re: Let's talk about the Weather.
Originally Posted by
DWebb
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I think it was 42 on the Morning I left Sydney and it then cooled to 24 in the space of 15 minutes
causing massive thunder storms at the airport which meant we missed our flight...I suppose the weather is only going to get more extreme there though with global warming
Sydney is always more prone to storms than say Wollongong because generally speaking the weather comes from the west. Sydney is a big basin where the great dividing range (Blue Mountains) is about 80km from the sea so the weather gets time to form as it comes off the mountains whereas at Wollongong the mountains are only about 1 to 10km from the sea.
(I should say that is not my knowledge but a storm chaser friend of mine that I worked with for many years who over the years told me about these things to the point where I know what a katabatic wind is)
Southerly busters are the relief from the heat, in the colonial days there was a mechanical telegraph system from Jervis Bay to Sydney Observatory so a signal telling of a southerly coming up the coast was sent as good tidings for Sydney residents - they hoisted a special flag. The buster is usually a rapid drop in temperature with a brief but sometime gusty cool wind as a cold front goes rapidly up the coast.
We have had unprecedented weather in January with heatwaves one after another going on for a week at a time but the southerlies (until this one) have been brief and ineffective perhaps only dropping the temperature by a few degrees. I have never known anything like it in the (over) 50 years I have lived here.
It must be said that heat is energy so hotter climates are more prone to storms etc but these are usually brief if violent.