A Rare Spring Polar Vortex Core Extends Winter Weather Risks Into April
The stratospheric Polar Vortex is entering its final seasonal phase, undergoing a Final Warming event that signals the end of its winter dominance. But as the high-altitude circulation dissipates, it releases the lower-level Polar Vortex core, bringing another round of weather impacts across North America and Europe in April 2026. click for more...














