I found this afternoons Euro run disappointing and started to look into it more to see what went wrong. The premise of this storm is that the upper low catches the surface low and the storm explodes. This has happened on past model runs, really at some time with all the different models for this storm. What concerns me about the Euro is the reformation of the low where there is heavier precip (likely thunderstorms) is. This can be 100s of miles further east as those storms shear out (which is also questionable). To demonstrate - at hr 102 the 988 low is right on the coast. Thunderstorms are out east and you can see the bend in the isobar indicating formation of a low.