This cold snap is due to the polar vortex destabilizing and pushing arctic air down South. Normally the polar vortex stays stable and that arctic air oscillate

This cold snap is due to the polar vortex destabilizing and pushing arctic air down South. Normally the polar vortex stays stable and that arctic air oscillates at higher latitudes. But with warmer temperatures in the higher latitudes that stability has been disrupted and a large part of the vortex air has been pushed South. The arctic is warming much faster that the rest of the planet, so these events will probably become much more common. Other sorts of extreme weather events are also going to become more common with climate change Some explainers on the polar vortex: https://www.carbonbrief.org/qa-how-is-arctic-warming-linked-to-polar-vortext-other-extreme-weather https://www.carbonbrief.org/qa-how-is-arctic-warming-linked-...