Polar Vortex 2025 Washington State. Winters with at least one polar vortex disruption/sudden stratospheric warming (ssw) are. The weakest polar vortex years (dark green dots) occur in easterly qbo winters.
A polar vortex is forecasted to blanket most of the continental united states in the coming week, with parts of the deep south expected to see freezing temperatures. Observed and forecasted (noaa gefsv12) wind speed in the polar vortex compared to the natural range of variability (faint shading).
Polar Vortex 2025 Washington State Images References :