Polar Vortex 2024 March. Furthermore, the major warming event may only last a few days, but the polar vortex is forecast to remain weak into march, which can increase the odds of. It forms in late summer, when the polar region starts to lose incoming sunlight as earth’s orbit causes.

By the end of february to the beginning of march, only cold air remains and there is no longer a polar vortex. 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.