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The Polar Vortex Is Stretching: A Historic November Forecast, and the Cold Outbreak That Hasn't Happened
polar vortex, November 2026, Arctic polar vortex, sudden stratospheric warming, NASA Ozone Watch, ECMWF, vortex collapse, planetary waves, wave-2, stratospheric warming, 10 hPa, 60N zonal wind, winter 2026-2027, Arctic Oscillation, QBO, El Niño, North American winter, cold outbreaks, stratosphere, Pattern Nexus
Published Oct 29, 2026
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Polar Vortex Watch 2026–27: The Sun Quieted, the Vortex Hit a Record — Now the Real Test Begins
The early-season Arctic vortex has now crossed from unusual into a verified date-matched record at 10 hPa. At the same time, NOAA reports very low solar activity and weakening coronal-hole high-speed-stream forcing, while NASA’s forecast shows the extreme wind anomaly peaking and then fading as 100-hPa planetary-wave forcing rises. That sequence fits the Pattern Nexus solar–stratosphere hypothesis, but the wave-forcing signal means this is a test of causation, not proof.
Published Sep 18, 2026