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flag A rare stratospheric warming event has disrupted Antarctica's polar vortex, altering weather patterns across Australia with potential for extreme conditions.

flag A rare sudden stratospheric warming event over Antarctica has disrupted the polar vortex, causing a sharp temperature rise in the upper atmosphere and altering weather patterns across Australia. flag This phenomenon, occurring only twice since 2002, has weakened the polar vortex, shifting cold fronts and westerly winds northward. flag Southern regions like Tasmania, Victoria, and South Australia may experience increased rainfall, strong winds, and unseasonably warm days, while eastern Australia faces drier conditions and heightened fire risk due to dry air and strong winds. flag The impact is expected to persist for weeks, complicating seasonal forecasts and increasing the likelihood of extreme weather.

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