A study a few years back found that even the smallest of Aleutian highs in the stratosphere can potentially deform/really put a "hurtn" to a large and strong #polarvortex if it has enough time to do so. This is something I would really watch over the next 2 weeks. #natgas pic.twitter.com/oEPuszba4A

— BAM Weather (BAMWX) (@bamwxcom) December 6, 2019