Polar Vortex Forecast 2025 24 Hours. The beginning of 2025 will be marked by the year’s first polar vortex, bringing snow, storms, and frigid temperatures that will impact the majority of the country and millions of americans. Some experts say such cold air.
When the polar vortex gets weaker, or breaks up, it unleashes cold air to the south. Forecasts suggest it will bring cold air to much of the u.s.