This was on HN a while ago, and should give you some idea of the complexity involved: https://www.severe-weather.eu/global-weather/polar-vortex-collapse-winter-

This was on HN a while ago, and should give you some idea of the complexity involved: https://www.severe-weather.eu/global-weather/polar-vortex-collapse-winter-weather-europe-united-states-2021-fa/ https://www.severe-weather.eu/global-weather/polar-vortex-co... Note that it is from January 10th.