The trend is your friend if you want a storm to phase earlier and bring white #Christmas hopes to a lot of people in the Eastern US.

Wild to see these big shifts west in just a roll forward of 3 days.

Tells us its far from set in stone and the trend is key to watch. #snow pic.twitter.com/2fBSZ83JwO

— BAM Weather (BAMWX) (@bamwxcom) December 19, 2020