Polar Vortex Split Forecast

Forecasts show a split vortex core, with one center dominating over north america. Jan 30, 2026this video shows the latest forecast split of the polar vortex structure from a stratospheric warming event over the next two weeks, with a split core extending into north. Forecasts tied to this event indicate that the polar vortex is likely to split and weaken, allowing lobes of arctic air to surge into north america.

6 hours agoa strong stratospheric warming event is underway over the arctic in early february 2026, rapidly weakening the northern hemisphere polar vortex. Jan 30, 2026new model runs and ensemble diagnostics now confirm a major stratospheric warming event, with a polar vortex split and effective collapse expected by mid-february. Though initial projections called for a major disruption to the polar vortex coming this february that would have allowed for significant arctic outbreaks in the.

5 days agoi have been discussing how the polar vortex (pv) can walk through three doors and therefore the weather. 2 days ago'coldest air of the whole winter' in forecast. 2 days agothe presently stretched polar vortex is forecast to split in two by the american gfs model.

Dec 19, 2025the polar vortex split in early december 2025, producing two distinct lobes that temporarily weakened its structure. Extended-range forecasts now show the system consolidating.