Weather watchers warn Australians will have to get used to more heatwaves after the record-setting temperatures that have scorched the country's southeast so far this year.
While Tasmania experienced its highest temperature on record, much of Victoria and South Australia baked in temperatures well above 40 degrees - the highest being 48.2 at Kyancutta, SA, on January 28. Victoria peaked at 45.8 degrees at Avalon Airport on January 29, then Charlton on January 31, falling short of the state's record of 47.2, while Adelaide also sweated through its warmest night on record, the mercury slipping to only 33.9 in the early hours of January 29.
Around the same time, RAAF Edinburgh, in the city's north, recorded a temperature of 41.7 degrees at 3.04am, fanned by strong winds. "Such an event appears to be without known precedent in southern Australia," a climate statement released by the Bureau of Meteorology on Wednesday said.
Climatologist David Jones said global warming, while a key issue, was not the sole reason for the heatwave. "It's a complex discussion. What global warming does is . .. it increases the frequency of hot events and decreases the frequency or likelihood of a cold event," Dr Jones said. "It's about relative probability. Look back over the last decade in Australia, we've had one or two really cold spells but we've had many more really hot spells and that's what it's about.
EDIT
http://www.thedaily.com.au/news/2009/feb/04/aap-weather-watchers-issue-heatwave-warning/