There have only been two sudden stratospheric warming events in the Southern Hemisphere on record: Sept 2002 & 2010.

🚨 That may change next week, as model guidance is forecasting temperature anomalies up to +60˚C at 10 hPa over Antarctica! 🚨

🔴 contour = +25˚C anomaly 👇 pic.twitter.com/hhSdKvNvBZ

— Ben Noll (@BenNollWeather) 21 August 2019