ECMWF & GFS guidance remain split with the evolution of a potentially notable winter storm early next week. One noticeable difference continues to be the handling of an upper low in the NW Atlantic. EPS is much further south w/ this feature, which helps to mitigate amplification. pic.twitter.com/pYdLWnT1FI

— John Homenuk (@jhomenuk) January 29, 2021