City bracing for summer scorcher as mercury soars to 42C

Sydney is set to sizzle as the ongoing heatwave continues to wash over the state, with temperatures reaching 42C in the outer western pockets of the city.

NSW will face another “very hot” day on Tuesday in its eastern and central regions, while there is some relief on the way for Victoria and South Australia.

Beaches and pools across NSW will be packed with punters eager to cool down as the mercury reaches 33C in the CBD.

Far hotter conditions are anticipated in the western suburbs, particularly in Penrith and Richmond, where temperatures are anticipated to reach a sweltering 42C.

Locals in southwestern suburbs areas like Liverpool and Blacktown are expected to sweat through a 40C day.

“(Conditions are) much hotter as we head into the western suburbs, up to the low 40s there,” Bureau of Meteorology meteorologist Sarah Scully said.

It won’t be just the state’s capital that sizzles on Tuesday; some of the state’s outback towns will continue to suffer through hot weather, Ms Scully added, with Dubbo forecast to hit 38C and Bourke expected to hit 41C.

The heat isn’t expected to stick around for long, as a “southerly buster” is anticipated to move up the east coast in the midafternoon and evening, suppressing daytime temperatures by five to 15 degrees across the Illawarra, Sydney and Hunter regions.

Ms Scully said a cold front would deliver “relief” to “really high temperatures in the southeast” across Tuesday and also produce some showers and possible thunderstorms.

“This ridge of high pressure will build in quickly behind it, seeing a return of mild and settled weather,” she said.

On Tuesday, Canberra will see a mostly sunny morning with a slight chance of a shower late in the afternoon, likely reaching a top of 35C.

Rain is forecast for much of Queensland’s east coast, which Ms Scully attributed to a low pressure system sitting on the state’s central coast.

Showers and possible severe thunderstorms could stretch from Yeppoon in Central Queensland to Brisbane in the southeast, she said.

There is also a chance of flash flooding and quickly rising rivers as a result of the downpour, said Bureau of Meteorology senior meteorologist Angus Hines.

“(The) ground is wet and the river catchments are saturated in parts of southeast Queensland, meaning rivers and creeks are likely to respond quickly to further rainfall, increasing the risk of both flash flooding and riverine flooding,” he said.

Flood warnings and watches have been issued for the southern Wide Bay–Burnett and the south coast catchments.

People should be on alert for a moderate flood warning in the Mary River downstream from Gympie.

A minor flood warning has also been issued from the Brisbane River to the Wivenhoe Dam.

A max temperature of 29C is expected for Brisbane.

But Queensland’s central and outback regions will continue to suffer through hot weather.

The bureau forecasts a top of 42C for Longreach and 44C for Birdsville.

Victoria will be “much cooler” from Tuesday, Ms Scully said.

“It will be a wet morning for Melbourne, with showers and even a possible thunderstorm that will mostly clear by the afternoon,” she said.

The city is forecast to experience a max temperature of 24C.

A top of 21C is forecast for Hobart, and BOM expects some showers to wash over the city.

Dry and sunny conditions will likely hang over much of South Australia, with Adelaide forecast to hit a top of 26C.

BOM predicts a hot and sunny day in Perth, with a maximum temperature of 36C, before the city cools off to 30C on Wednesday.

Ms Scully warned “extreme heatwave conditions” were developing across parts of the central Northern Territory.

A top of 43C is forecast for Tennant Creek.

Darwin is expected to hit 36C and Alice Springs 37C.