Next Polar Vortex 2025 Europe. Beginning next week, the polar vortex will likely trigger even colder air across the eastern half of the u.s. But when the vortex weakens or gets a little wobbly, all that bitter cold escapes and slides south, hitting places like the us with extreme winter weather.
Forecasts suggest it will bring cold air to much of the u.s. Pieces of the polar vortex are projected to swirl southward out of northern canada and into parts of the u.s.