高层西偏南风加强、水汽通量增大、上升运动的加强以及水汽的辐合造成滇中及以东的强降雪；
Southwest wind enhancement, water vapour flux increase, ascending motion enhancement and water vapour convergence in upper level arouse the heavy snow process in central and east Yunnan.
高层西偏南风加强、水汽通量增大、上升运动的加强以及水汽的辐合造成滇中及以东的强降雪；
Southwest wind enhancement, water vapour flux increase, ascending motion enhancement and water vapour convergence in upper level arouse the heavy snow process in central and east Yunnan.
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