Polar Vortex 2025 Pennsylvania. Experts are predicting 2025 will kick off with a polar vortex. Multiple rounds of frigid, arctic air could sweep across the eastern half of u.s.

A series of blasts of polar vortex air from the north will bring subfreezing temperatures as well as ice and snowstorms to 40 us states, affecting more than 250 million. Forecasters say there’s a chance the cold spell could bring with it a lobe of the polar vortex, the strong band of westerly winds that forms above the north pole every winter and.