The Next Polar Vortex 2025. A cold air mass that formed over northern canada is expected to move southwards towards the u.s. Recent signals indicate the possibility of a block at high latitudes, with a strengthening of geopotential height anomalies over greenland and northern europe.

Beginning next week, the polar vortex will likely trigger even colder air across the eastern half of the u.s. “dangerous wind chills are likely across.