It’s all tight frontogenesis…ie a strengthening midlevel front. The wave progressing through along it is slowing it down. E-SE flow and weak WAA ahead of it and N-NW flow west of it with CAA.
Check the convergent flow at H85 near where the band is now.
Yeah, but there was radiational cooling overnight as skies cleared…common black ice recipe. I’m talking FZRA on the driveway despite a 2m temp decently above 32°. That’s how deeply cold the ground surface was.
It’ll be cold this week, but models backed off a bit on the intensity the past few days. The heart of it dumps into the MW and then slightly moderates our way. It won’t be the coldest stretch of our lives. lol