Polar Vortex Forecast 2025 Map. A cold air mass that formed over northern canada is expected to move southwards towards the u.s. An area stretching from texas to tennessee is bracing for the expected arrival of freezing rain and snow, as some other parts of the country that already received an arctic blast.
In the latest european operational forecast of the polar vortex, the stretched pv is directed at the eastern us and not the western us in contrast to the gfs. 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.