Polar Vortex Usa Map 2025. Parts of the polar vortex are positioned to sweep across the eastern us, which could potentially result in unusually frigid temperatures at the beginning of 2025. The canadian and european models have been more skittish but overall have been focused more in the eastern us.
A strong/stable polar vortex usually means strong polar circulation and jet stream. A weaker polar vortex usually means a weaker jet stream, which increases the chance of a more dynamic.