Polar Vortex 2025 Snow Map. Arctic winds from a powerful polar vortex are sweeping across several states, bringing dangerously cold temperatures and severe weather conditions. This is where most weather takes place.

This is where most weather takes place. 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.