Polar Vortex Forecast 2025 24 Map. The legend at the bottom shows how many inches of snow accumulation is. How the 'polar vortex' could impact january's forecast the extent of the cold could be dependent on a piece of the polar vortex.

Beginning next week, the polar vortex will likely trigger even colder air across the eastern half of the u.s. Forecasts suggest it will bring cold air to much of the u.s.