Polar Vortex 2025 Michigan. Pieces of the polar vortex are projected to swirl southward out of northern canada and into parts of the u.s. When the arctic oscillation is in a negative phase, cold air can quickly plunge into the midwest, bringing snaps of cold and snowy weather.
January 2025 will bring a broad cold winter weather pattern. Early data shows that the polar vortex is likely to be weaker than normal in the winter of 2024/2025.