Weather forecast for Central and Eastern Australia as La Niña Weather Event Statement Expected | Australia weather

Rain and storms are expected to whip up central and eastern Australia in the coming days, bringing another soft end to the week as tropical moisture flows down from the north.

South Australia, the Northern Territory, Tasmania, western Victoria, western New South Wales and western Queensland will see declines of up to 100mm in hard-hit areas as Australia edges closer to declaring an official La Niña.

Senior forecaster at the Bureau of Meteorology Jonathan Howe said it would be “one of the wettest weeks” coming into the summer for every mainland state and territory as a trough stretching from the Great Australian Bight to the tropics.

“Over central and eastern Australia it will be humid, rainy and stormy,” he said.

“Every state and territory will be hit by thunderstorms and rain over the next week, with showers coming by before the storms arrive.”

Howe said Western Australia, western Queensland and New South Wales, northern Victoria and much of northern territory would be hardest hit Thursday and Friday before storms gradually shifted to the east coming into the weekend.

The heaviest rainfall – between 50 mm and 100 mm – is expected in distant Western Australia, Kimberley and the Top End, while parts of north-eastern Victoria and south-eastern New South Wales were forecast to see rain of up to 50 mm.

“It depends on where the thunderstorms fall, but there are warnings of heavy rainfall in northern Victoria and western New South Wales, and there is already a risk of flooding in remote areas,” Howe said.

“Some places are already soaked, so there is a risk of some sea flooding.”

Howe said an active tropical moisture front caused the storms, with steaming water in northern Australia at temperatures between one and three degrees warmer than normal.

“It’s generally in the high 20s, but the water gets 33 degrees, like a hot bath,” he said.

“It causes evaporation and the tropical moisture is drawn across the continent, leading to humid days and instability.”

Although La Niña had not been officially declared, Howe said forecasters were “on the verge” of doing so in the coming days or weeks, predicting a continuation of above-average rainfall that lasted into the summer.

“You need an above-average temperature over a continuous period and we meet almost all criteria. It is the hot water that would make us declare it, ”he said.

“Normally you see weather like this at the beginning of the active rain and cyclone period, but the unusual thing is the timing. You see it in the summer when it’s hot, but it’s quite early in the season, which was unexpected.”

Howe said a silver lining could be the reduced risk of serious forest fires like those seen during Black Summer in 2019.

“It was getting really hot [in 2019] but because we are seeing so much rain across western and central australia, it does not give the heat a good chance to build and it is unlikely that we will see big heat waves over the next few weeks, ”he said.

“It looks like it’s going to be an average season coming into the summer, but that does not mean we are not getting any forest fires as all you need is a few hot days.

“There is an above normal chance of bushfires in southeastern Queensland and northern New South Wales because of how dry it has been, but across eastern Victoria and New South Wales it is below normal, which comes back to the wet. weather.”

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