Polar Vortex February 2025 Preseason. Beginning next week, the polar vortex will likely trigger even colder air across the eastern half of the u.s. The polar vortex remains a critical factor in winter weather, and january 2025 is shaping up to be an intriguing month for meteorologists and weather enthusiasts alike.

As the new year approaches—but what exactly is a polar vortex, and how could it affect the weather in 2025? With last week’s freeze being the second time temperatures dipped below freezing this winter, many are wondering if this active winter pattern is setting the stage for an even.