U.S. forecasts blizzard, polar vortex, heat dome and atmospheric river all at once March 13, 2026 Steven Guccione From PBS News. On top of a pretty good long term drought here in the western US. U.S. forecasts blizzard, polar vortex, heat dome and atmospheric river all at once Share this: Share on X (Opens in new window) X Share on Facebook (Opens in new window) Facebook Like Loading... Related