Polar Vortex February 2025 Predictions Ny. 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. Contours) and decameter anomalies (dam;

Multiple rounds of frigid, arctic air could sweep across the eastern half of u.s. Some areas will see record low temperatures while others will be slammed with snow.