@WinterWxLuvrEarlier, when you mentioned this storm changing shape. One of the things i'm maybe starting to take notice wrt to the Euro and NAM even earlier was the evolution and what it could mean for areas further south. Some folks in the other forums speaking of the Euro at 18z closing off h5 earlier and further SW. This can cause that evolution where depending on track of low and tilt on the trough out latitude wins and further north doesn't do as well.