The Southern Hemisphere polar vortex took a unique journey this winter ♻️ A mid-July, minor Sudden Stratospheric Warming event saw the vortex become elongated, weaker, wobbly. This stratospheric anomaly affected tropospheric weather patterns, but now appears to be easing. In late July and early August, a rapid stratosphere-troposphere coupling contributed to the development of a major high pressure cell and heatwave over Antarctica, while a very deep low formed over the Southern Ocean, and a hea

We've heard of this term before, but what is the Polar Vortex actually? | AccuWeather