Ex-tropical cyclone Seroja has already made its way into the Great Australian Bight and out to sea, dashing hopes for any desired boost to rainfall in the south-east.
Key points:
- The ex-tropical cyclone has moved south and won't significantly boost rainfall in the south-east
- South Australia is expecting elevated fire dangers ahead of another cold front
- It comes after chilly weather brought a taste of winter over the weekend
The southerly cyclone brought high winds and heavy rains to regions not accustomed to cyclones and their consequent widespread damage.
According to Jackson Browne, a senior meteorologist at the Bureau of Meteorology (BOM), Seroja's strength and momentum meant it managed to maintain its intensity well inland.
"Given that fast movement, it has crossed the coast into the Bight and its trajectory is putting it well south and east of Tasmania," he said.
As it moves away, the system is not expected to enhance the cold front making its way across the continent.
Loading"It's not looking like a heavy rainfall producer," Mr Browne said.
In contrast, ahead of the front South Australia is expecting severe fire dangers around the Adelaide area.
"On the Eyre, Yorke and Fleurieu peninsulas, and then going up to about the Flinders Ranges, we are expecting severe fire dangers there," Mr Browne said.
That heat doesn't translate all the way across to the south-east though, with western regions of Victoria expected to have very high fire danger today but to return to high and low-moderate danger by tomorrow.
Tight pressure gradients over the south-east could lead to strong winds and warnings as the front moves through Victoria and Tasmania on Wednesday.
Supplied: BOM
)After this front we could be in for a calmer few days of weather, according to Mr Browne.
"We end up in what's known as a zonal pattern. Most of the weather fronts will just slip east to west south of the continent.
"We'll get this one front and then it's going to fine up essentially."
Cold blast for the south-east
This cold front follows a series over the weekend that brought a chilly blast to the east and the first major cold outbreak of the season.
Loading"There was an initial front that cooled it down and then the second one that just really reinforced that," Mr Browne said.
"We saw the lowest temperatures recorded up at Thredbo Top Station with -5.2C and the first reasonable snowfall of the season up in parts of the Alps and Tasmanian Highlands."
April might feel early for snow, but it's not unheard of according to Mr Browne.
"Even in summer [the south-east] can get cold outbreaks that can lead to isolated snowfalls."
The snow is not expected to hang around due to warmer daytime temperatures.
LoadingNot to be left out, there is quite a cold outbreak developing in the south-west of the country in the wake of the current front.
"We will likely see temperatures there drop down considerably — looking at around 10 to 12 degrees below average in areas like Perth and stretching right into north-western South Australia," Mr Browne said.
So is it time to store the summer clothes?
Mr Browne wasn't willing to make the call on whether the summer clothes should be packed away just yet.
"Once you start introducing cold air to Australia, it's very hard to encourage the warm air back down," he said.
"The winds are starting to just point in one direction now, but no, I'm not going to make that call."
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2021-04-12 20:26:22Z
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