Sydney, Brisbane, Melbourne weather: Australia set for third consecutive La Nina this summer

Brace yourself for more rain bombs: Even more extreme weather is on the horizon with a THIRD La Nina set to destroy Australia’s east coast this summer – when intense rain and devastating flooding return

  • The Bureau of Meteorology has declared a third consecutive La Nina weather event for this spring and summer
  • The weather system was responsible for torrential rain and flooding along Australia’s east coast earlier this year
  • Three consecutive La Nina years in Australia is rare, but not unprecedented with three in the last century

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Another summer of heavy rains and damp, sticky nights is upon much of Australia as forecasters announce a rare third consecutive La Nina weather event.

The outlook for the remainder of 2022 has been raised to an established La Nina, according to atmospheric and oceanic indicators, which inform the Bureau of Meteorology’s La Nina warning system, the El Nino-Southern Oscillation (ENSO).

The BOM observed cooling in the central tropical Pacific in recent months, along with trade winds and equatorial cloud cover – all typical La Nina indicators.

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People look out for flooded houses next to an old Windsor Bridge along the overflowing Hawkesbury River in Sydney’s northwestern suburb of Windsor on July 6, 2022

Local residents face flooding in Australia’s Lismore on March 31, 2022 after the town was flooded twice in a month

It comes after months of reports of a likely third appearance of the weather pattern, leading to heavier than usual rainfall and cooler temperatures on the north and east coasts.

Conditions in La Nina were blamed for devastating flooding in southeastern Queensland and the NSW Northern Rivers this year.

“Models indicate that this La Nina event could peak in the spring and return to neutral by early 2023,” the BOM said.

The Bureau of Meteorology has confirmed a third consecutive La Nina weather system for this summer

Above-average rainfall on the east coast is expected to peak in the spring, but to last until February 2023

Three consecutive years of La Nina is an unusual event, having only happened three times since 1900.

The statement added that climate change continues to affect climates locally and around the world, with temperatures rising around 1.47 degrees in Australia for the period 1910-2020.

In the south of the country, rainfall in the cold season has decreased by 10-20 percent in recent decades.

There has also been a trend towards high-intensity rainfall occurring over a short period of time, especially in northern Australia.

La Nina is caused by warm water in the Pacific Ocean that collects along the coast of Australia, as the water in the tropical Pacific cools

Jacky

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