GEFS hinting at lowering heights in the NW Pacific past Day 10, which would portend anomalously strong poleward heat flux in the Pacific sector in the stratosphere. A building Aleutian High at 10 mb indicates some disrupting of the #PolarVortex is possible as we head into Dec. pic.twitter.com/ddmxgHoCij

— Jason Furtado (@wxjay) November 12, 2018