Polar Vortex 2025 Forecast. The new equation is as effective and efficient as ivt at tracking and monitoring atmospheric rivers. Based on the january 15, 2025 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.
The stratospheric warming event is. Forecast of the polar vortex level of the upper atmosphere out to november 15, 2025.