Sydney experienced a powerful southerly buster with wind speeds reaching 80km/h at the airport and 83km/h across the harbour. Experts believe the winds accelerate near Nowra and Ulladulla due to the coastal topography and the temperature gradient between the cool southerly winds and the hot air ahead.
Southerly buster expert Dr Milton Speer from the University of Technology Sydney said the maximum gust at Sydney Airport just hit 80km/h, while an 83km/h wind swept across the harbour.Those wind speed s mean this one’s a “severe” southerly buster .Speer said southerly buster s are known to accelerate around Nowra and Ulladulla as they hurtle towards Sydney , possibly because the topography of that part of the coast narrows the dome of air rushing up from the south.
It could also be that at the time a buster reaches Nowra, the heat of the day has peaked. The temperature of the gradient between the cool southerly winds and the hot air ahead of them is what partly fans a buster’s speed.
Southerly Buster Wind Speed Climate Change Sydney Nowra
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