Let’s cover the rain off first shall we.
The heaviest falls are expected over central-eastern Queensland, with predictions 500mm could fall in the first half of the week.
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Weatherzone’s accumulated rainfall map indicates up to 300mm could fall over Western Australia, while 100mm could inundate parts of New South Wales, Northern Territory, and Victoria.
“The map below paints a clear picture of how this week will unfold, with rain likely in part of every state and territory,” it said.
The deluge comes as the south and south-east brace for a heatwave and stormy conditions.
The mercury is expected to hit the mid-to-high thirties in Melbourne and Adelaide on Tuesday.
Sydney could also see a temperature-record tumble.
Tuesday or Wednesday could mark the Harbour City’s first day over 30C since February 2021.
Temperatures in the low-thirties are forecast across Sydney, Hobart and Canberra.
“(This) would end the city’s second longest stretch without a 30C day in records dating back to 1859,” Weatherzone said.
But with the sticky heat comes the risk of storms.
“Southern Australia’s hot start to the week will take a stormy turn when a cold front and associated trough bring clouds, rain and thunderstorms through the middle of the week,” Weatherzone said.
“Rain and storms could affect parts of Western Australia, South Australia, Victoria, Tasmania, New South Wales, the Australian Capital Territory and southern Queensland between Tuesday and Friday, with severe thunderstorms possible in several states.”
A dangerous squall line could even develop ahead of the cold front, which will make Tuesday afternoon and night “particularly dangerous” in parts of South Australia, Victoria and southwest New South Wales.