Today’s GFS is still banging the drum for a 6-Sigma Stratospheric Warming Event starting this week and continuing to a peak in the 3rd week of January. The consequences would be a enhanced risk for cold in Eastern North America for January and February. #wxtwitter pic.twitter.com/FbUNDhgHzN

— Mark Margavage (@MeteoMark) January 1, 2023