This is what I'm confused about. The 18z Euro from my view of its H5 vort and height should've been an improvement or more southeast yet it went further northwest (not for DC in particular but I went from a foot to six inches and from .3 of ice to .6 and an inch or two of sleet). I'm honestly not sure what happened to cause the warm air intrusion further south. Comparing the 18z Euro to 12z as Terpeast noted we see a good amount less phasing
When looking at the vort maps it becomes even stranger to me that things went the wrong way at the surface as the NS appears almost close to crushing the SW, especially if it was displaced any further east.
Meanwhile 12z Euro has a whole ass triple phaser
The only negative I can denote is slightly less confluence on the 18z? Maybe? Either way it just shocks me the changes out west had no impact on the surface. Maybe if we got another run that had these exact changes we would see more meaningful consequences?