It’s autumn in Australia, but you might not be able to tell from the weather. Record-breaking heat has gripped large swaths of the country — the government’s Bureau of Meteorology said Sydney, Adelaide, and other locations have hit the “hottest or equal-hottest April days on record.”
We have published a Special Climate Statement exploring the highly unseasonal hot spell experienced by much of Australia at the start of April. More at https://t.co/jHCzg7hb3c pic.twitter.com/Yg2uQHeOqj
— Bureau of Meteorology, Australia (@BOM_au) April 13, 2018
Persistent heat in Australia prompted the Bureau of Meteorology to release a Special Climate Statement: a 22-page document delving into detail about record-setting temperatures across the country. In a media release about the climate statement, the Bureau of Meteorology said during the first week of April, the heat affected primarily northwest Australia. Then the hot spell moved southeast, impacting New South Wales, Victoria, and South Australia. All those states set April temperature records.
Bureau of Meteorology climatologist Blair Trewin said the heat’s extent was exceptional, saying in the statement, “The heat had been building up in northwestern Australia since monsoon rains ended in mid-March. Northwesterly winds then brought the hot air mass southeast at the start of this week, which is when we saw the impacts on South Australia, Victoria, and New South Wales.”
The climate statement described conditions as as abnormally warm, and said the heat was more in line with what a person might expect in mid-summer, not mid-autumn. The statement said the heat “was unprecedented in many areas in April for its intensity, its persistence, or both.”
Is climate change responsible for the heat? The Bureau of Meteorology didn’t say, in the statement or the media release. The climate statement pointed back to past notable April heat events in southeastern Australia, which occurred in 1922, 1938, 1986, and 2005. But the heat could be a preview of coming attractions, according to Mashable, which said extreme events such as this one could be more regular in a world impacted by climate change.