South Australiaįor South Australia, the warmest days will be Sunday and Monday, apart from the far south-east of state where a cloudband will keep temperatures near average.
Let's look at Perth for an example across the next seven days when maximums will range from 20C to 25C, a variation of only five degrees.Ĭompare that to Sydney where the range is 32C to 21C.
Think I'm just being east-coast centric and ignoring the west? Gusts should reach around 100 kilometres per hour in exposed regions and a warning could be issued by the bureau for damaging winds.Ĭold air behind the front will bring snow to the highlands although compared to more significant spring cold snaps the snow won't be especially heavy or widespread.Īfter a blast of damaging winds, heavy rain and thunderstorms on Wednesday the weather has now calmed across WA and there is nothing in the charts which indicates any newsworthy events this week. Winds will ease on Sunday, however another burst of strong winds and showers will arrive late Tuesday and Wednesday as a powerful front arrives. They don't call it the Roaring Forties for nothing, and Saturday is delivering a classic burst of strong to gale force westerlies and showers across Tasmania as the island becomes the battleground between the warm air over the mainland and polar air to the south.Ĭold and warm air masses don't get along, and when in close proximity the result is typically very strong winds and rain. The temperature drop between Tuesday and Wednesday will exceed 10C for most districts and by Thursday it will even be cold enough for snow across the Alps, although this ski season is well beyond saving and the fresh flakes will be falling onto grass and mud. The heat building across the south of the state will last until Thursday, ahead of a cool southerly change which will drop temperatures by Friday. Onshore winds are bringing showers to the tropical coast this weekend and some coastal showers will return during the second half of the coming week. Otherwise, there is not a whole lot going on across Queensland this week. Unlike southern states, Queensland is normally already fairly warm by September, so this week's heat is not as abnormal, although for the far south right near the NSW border the next few days will deliver maximums near 10C above average. Here is a breakdown of how the warm spell will impact each state and when cooler weather will return. This split jet and stationary high pattern is called a "diffluent block".
The result is an absence of wind above the high to shove it out of the way. What's different this week is an area of high-pressure in the Tasman Sea is near stationary, deflecting fronts away from southern Australia.Įarlier this week the jet stream - a river of strong winds aloft - split in two, with one arm heading north into the Coral Sea and the other diving south over Tasmania.
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