Polar Vortex 2025 Impact On Global Warming. A strong polar vortex — and one that stays swirling tightly above the pole — depends on a dramatic contrast between frigid polar temperatures and milder conditions across midlatitudes. It's a cold air outbreak that some experts say is happening more frequently, and paradoxically, because of a warming world.
Observed and forecasted (noaa gefsv12) wind speed in the polar vortex compared to the natural range of variability (faint shading). Some data suggests that global warming may weaken the polar vortex due to uneven warming, particularly in the arctic.