Polar Vortex 2025 Predictions

Polar Vortex 2025 Predictions. The maps may be viewed as html animations or. A weaker polar vortex usually means a weaker jet stream, which increases the chance of a more dynamic.

As you can see, a la niña phase has a higher chance of producing a polar vortex collapse event. For the gefsv12 forecast issued on 18 december 2024, the winds at 60 degrees north (the mean location of the polar vortex) are forecast to remain stronger than normal for at.