A one-time cyclone has a sting in its tail as its remnants make a beeline for the south and east bringing a summer’s worth of rain in two days.
Tropical cyclone Tiffany may have dissipated but the effects of it certainly haven’t.
The remnants of Tiffany are now swirling into Central Australia as a low pressure system bringing rain and storms to the outback. And its journey isn’t going to end there. The system is heading east and south which will see it bring unsettled and sodden conditions to at least five states.
“A significant multistate rain and storm event is unfolding for parts of the country this week,” Sky News Weather meteorologist Alison Osborne said.
”Multiple states and territories are likely to be impacted by periods of heavy rain. That means flooding is once again a risk.
“In South Australia’s east, the current outlook of up to 100mm of rain is equal to a whole summer’s worth in two days,” she told news.com.au.
Sydney could see up to 50mm of rain this week with heavy falls also in the north of New South Wales and spreading into Queensland.
In the west, the seemingly endless heatwave of summer 2022 continues with Perth nudging 40C while Melbourne will get steadily hotter as the Australian Open gets underway possibly reaching 35C.
“The arrival of the monsoon and ex-tropical cyclone Tiffany are packing a punch with heavy rain across the region,” said Ms Osborne.
Darwin, which Tiffany brushed last week, will see heavy rain and storms every day this week with up to 20mm very normal. The city will top out at 32C.
The system will then spend the next few days tracking across the Northern Territory and outback South Australia. Oodnadatta, one of the hottest and driest towns in Australia, could see rain at the beginning of the week.
Drenching in parts of SA, NSW
The wet weather might not reach Adelaide until later in the week. Maximums will likely be in the mid to high twenties in the CBD with mid-teen minimums until Thursday. It will then shoot up to 35C and not much less on Friday.
On Friday and into the weekend the current forecast is for up to 20mm of rain each day.
The soggy conditions could hit the east coast earlier however.
“Tropical moisture will continue to feed into a trough over Queensland and NSW on Tuesday and Wednesday bringing some heavy rainfall,” said Ms Osborne.
“Wednesday is likely to bring torrential falls and the risk of further flooding across northern and eastern NSW and southern parts of Queensland.”
The rain could be a feature in Sydney for much of the week. Up to 10mm could come down on Tuesday and then 10-25mm on Wednesday and up to 15mm on Thursday.
The mercury should settle around the 25C mark falling to 20C overnight.
Even wetter in the interior with Dubbo forecast to receive up to 20mm on Tuesday and 15-35mm on a stormy Wednesday. Armidale could see 20-40mm midweek and plenty of showers either side of that.
Up to 10mm of rain is due for Canberra on Tuesday with further falls later in the week. Tops of 20-24C with dawn lows of 11-16C.
Showers increasing in Brisbane. Thursday and Friday might be the wettest with a little under 10mm falling. A warm start to the week hitting 31C but then down to 27C. Minimums will be around 20C.
Scorching in Melbourne, Perth
Dry in Melbourne, which is good news for the Australian Open – but it will be getting toasty.
A mild 21C on Tuesday will creep up to 30C on Thursday and then 35C on Sunday. Evening games should be much more bearable with minimums dropping to the mid to high teens.
The Gippsland region could receive some showers midweek.
Dry in Hobart and getting warmer. Highs of 19C until Wednesday and then hitting 26C on Friday and Saturday with minimums of 12C.
On the other side of the Nullarbor, the Western Australia heatwave continues unabated.
The Bureau of Meteorology has warned of a severe heatwave for Perth and the entire state’s south west for Tuesday until Thursday.
A high of 38C on Tuesday and then almost 40C on Wednesday and Friday in the city. It may only get down below 35C on Sunday. Overnight, expect temperatures to be as high as 26C.
Albany could hit 35C on Wednesday and 30C on Thursday and Margaret River can expect to reach 37C on Wednesday.
Originally published as Australia set to be hit by ‘significant multistate rain and storm event’
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