Elliptical Orbit Representation for the Annual Evolution of the Northern Hemisphere Stratospheric Polar Vortex. Part II: Long‐Lead Forecasts of Wintertime S2S Anomalies. - Secor, Michael; Sun, Jie; Yu, Yueyue; Wu, Zhaohua; Cai, Ming (Journal of Geophysical Research. Atmospheres, 2026)