Inland parts of Australia, most notably South-West QLD, North-West NSW and North-East SA are about to bake under what is technically a heatwave – even by their standards.
A heat trough is forecast to park itself over Central Australia for the next week, roughly stretching from Inland Western Australia, through Northern South Australia and into New South Wales. This heat trough is expected to help not only maximum temperatures skyrocket up to 6-8ºc above average, but also minimums are set to do the same.
The real heat is expected to start on Monday in North-East South Australia and only marginally creep into South-West QLD. Maximums are likely to reach the mid 40’s over North-East SA and the low to mid 40’s into QLD. This will lead to a hot start on Tuesday with minimums unlikely to drop below 30 and stay in the mid 30’s most of the night. Both regions are then likely to push into the mid 40’s with areas such as Birdsville heading for 45ºc and Moomba/Oodnadatta potentially seeing 46 or 47ºc. A repeat on Wednesday and Thursday is likely with Thursday potentially becoming more widespread with several locations heading for 45ºc and some possibly up to around 48ºc. Overnight minimums don’t drop off, some places may struggle to drop below 35ºc all night.
On Friday, the heat is expected to remain but a cool change should move through, aided by thunderstorms to bring relief to South Australia mainly. Maximums are expected to reach 46-49ºc over the North-East with Birdsville possibly heading for 46 or 47ºc. Northern NSW not much cooler. Minimums around Oodnadatta are UNLIKELY to drop 35ºc on Friday morning!! Saturday gives Birdsville one last crack at potentially a 5th straight 45ºc day as the heatwave engulfs Southern/Central QLD.