Polar vortex

The earliest tipping point

Every autumn since 1948 as a line: when the westerlies over the pole reversed earliest, and 2026.

Free to explore.

Welcome! Your membership is active in a few seconds; then the whole scene is open.

Open scene

Source

NCEP/NCAR R1 · GFS · GEFS

Period

1948–2026

Version

1.0.1