Upcoming Polar Vortex 2025 Map. Increased snow cover and high pressure: With a stratospheric warming event expected to develop, we currently see a rapid breakdown of the polar vortex and a cold weather pattern change across the united states in.
I have been describing the pv variability as “lather, rinse, repeat” and for the most part that seems to be true. Signals are pointing toward a displaced polar vortex this winter, which typically contributes to a negative nao.