Polar Vortex 2025 March Forecast. Arctic attack to begin 2025: A weaker polar vortex usually means a weaker jet stream, which increases the chance of a more dynamic.
A weaker polar vortex usually means a weaker jet stream, which increases the chance of a more dynamic. 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.