Polar Vortex 2024 Oregon. Based on the january 15, 2024 forecast, the stratospheric polar vortex winds will decrease to zero, just reaching the threshold of a major sudden stratospheric warming, in the next day or two. A partnership with experts from the climate prediction center and the chemical sciences.

A strong/stable polar vortex usually means strong polar circulation and jet stream. Various models, including ecmwf and gefs, indicate a substantial weakening in early january,.