Weather News

Heat shifting back and forth for southern Western Australia

Scott Morris, Saturday April 3, 2021 - 17:39 EDT

The east and west of southern Western Australia should experience some mildly different conditions over the next couple days. 

Eucla, in the far southeast of WA, reached a sweltering maximum of 38 degrees just before midday. However, since then, a burst of southeasterly winds has cooled Eucla so the mercury is sitting around 33 degrees. As evening descends, the temperature should drop even further with these cooling winds, with the forecast minimum at 16 degrees. Then a couple of below 30 degree days will follow. 


Image: ECMWF forecast surface temperature at 8pm EDT Saturday showing cooling S/SE winds pushing heat inland in southern WA 

 However, moving onto the west coast, the heat is looking to stick around for a bit longer. Currently, a trough is spreading cloud, showers and a few thunderstorms to southwest WA. Despite the cooling effect of the showers, Perth should still reach above 30 degrees on Sunday as seabreeze is held off by easterly winds. Mornings should also be something to look out for as the cloud from the trough limits heat escaping during the night. On Monday, the mercury may not dip below 20 degrees. 

 Looking ahead, by the end of the week the momentum looks to shift back east, as low intensity heatwave conditions should develop over southeastern WA. Meanwhile, Perth and most of southwest WA should get a dose of cooler air, helping to keep temperatures in the mid-to-high 20’s towards the end of the coming week. 

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