Antarctic stratospheric warming may lead to a negative Southern Annular Mode, altering global weather patterns and affecting Australia's climate.

Antarctica's stratospheric warming, potentially triggered by a heatwave, could lead to a persistent negative Southern Annular Mode, affecting global weather patterns. The weakening polar vortex may cause warmer, drier conditions in southeastern Australia, while increasing rainfall in southern regions and snowfall in alpine areas. The impact depends on the duration and extent of weather systems being pushed northward, as well as other influencers like El Niño and the Indian Ocean Dipole.

August 05, 2024
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