Polar Vortex 2025 23. A polar vortex dipping down from siberia is bringing a cold front with frigid temperatures to millions americans. Winter in the northern hemisphere is shaping up to be a period of great atmospheric dynamism, with the polar vortex (pv) playing a crucial role.

Here’s what’s going on and how you. Early data shows that the polar vortex is likely to be weaker than normal in the winter of 2024/2025.