Polar Vortex February 2024 Predictions. It is strengthening slower than. And while the first two weeks of february are likely to be milder than average in the northeast, uncertainty increases during the second half of the month, possibly linked to a.

Observed and forecasted (noaa gefsv12) wind speed in the polar vortex compared to the natural range of variability (faint shading). For the gefsv12 forecast issued on february 12, ~90% of the individual model runs predict a reversal of the vortex winds (top, thin magenta lines), accompanied by a sharp.