Adelaide can look forward to temperatures below 30ºC today for the first time in 10 days! This is thanks to a cool southerly change that swept across the South Australian coast last night bringing slight relief to heat- ravaged areas. But even though some places are up to 15 ºC cooler than what they were yesterday, they are still above average today. This gives you some idea of just how hot it got with a few places even reaching 45 ºC like Ceduna, Wudinna and Port Augusta.
But this drop in the mercury will only be short-lived! By tomorrow, the heat will be back with 34ºC before getting to a scorching 41ºC on Wednesday and Thursday. The “proper” cool change will arrive on the weekend in the form of a cold front that will finally drop temperatures down to the low twenties on Saturday and Sunday.
The reason why the cool change today isn’t sticking around is because it’s just a wind change from northerlies to southerlies- the actual temperature of the hot air above South Australia isn’t changing. So once the southerlies move away, the heat comes back! On the contrary, a cold front brings a wind change and cold air behind it which actually replaces the hot air and brings a longer period of cooler weather.
But this drop in the mercury will only be short-lived! By tomorrow, the heat will be back with 34ºC before getting to a scorching 41ºC on Wednesday and Thursday. The “proper” cool change will arrive on the weekend in the form of a cold front that will finally drop temperatures down to the low twenties on Saturday and Sunday.
The reason why the cool change today isn’t sticking around is because it’s just a wind change from northerlies to southerlies- the actual temperature of the hot air above South Australia isn’t changing. So once the southerlies move away, the heat comes back! On the contrary, a cold front brings a wind change and cold air behind it which actually replaces the hot air and brings a longer period of cooler weather.
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