Tighter grid models starting to get in range now. The 18z GRAF speeds things up. It's showing a nice "thump" of snow, and temps in the 20s, by Mid Morning in the Baltimore Metro on Friday! 👇 Stay tuned...❄️🚂 pic.twitter.com/cRS0bfhjUF

— Tony Pann (@TonyPannWBAL) December 20, 2022