We found that, in CMIP5 high-top models, during Central Pacific El Nino events, there was no significant polar vortex response (chance of SSW was roughly 50%, or in other words, no increased probability). https://t.co/V8H3Wikr0L https://t.co/VIO0xngiXe

— Dr. Amy H Butler (@DrAHButler) October 30, 2018