The polar vortex could break down as early as the beginning of November. This has never happened before.

This year, the polar vortex may weaken or split earlier than usual, potentially impacting European weather. Meteorological models suggest significant stratospheric warming could occur in early November, a phenomenon not previously recorded before late November. The polar vortex typically strengthens in autumn, but current forecasts indicate a possible shift in wind patterns. Such changes could lead to colder Arctic air moving south, although not every disruption results in severe cold. The dynamics of the polar vortex will be closely monitored, especially in light of a strengthening El Niño, which may influence stratospheric conditions. The exact effects on weather in the Czech Republic remain uncertain.