Next Polar Vortex 2025 Path. Early data shows that the polar vortex is likely to be weaker than normal in the winter of 2024/2025. Impacts of the polar vortex.
“this could end up being the coldest january. 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 least the next 2 weeks (bold red line).