iGRXY
Member
Bingo. We have some Miller B members on the GEFS but they make it as far as central and northern Alabama before transferring to the coast. Which is actually a believable setup. The GFS OP just isn’t believable no matter how you slice it. The GEFS showed a clear picture of either a quick transfer without it pushing through the CAD or the southern members pivot around the CAD dome to the coast.The OP GFS doing GFS things again WRT to the first SFC low... some things never change with whatever version of it that's run.
Why in the hell does it take the first SFC low on a cyclonic trip directly to the mid/upper low and even ends up NW of its upper parent (*cough* BS *cough*) .. it shouldn't... but as GFS is as GFS does... already with that, it snowball effects and basically derails the rest of its prog...
cold air damming is extremely stubborn to scour, especially when it's reinforced with precip, latent heat aloft or not...
The parent high appears to be more or less in a really primed spot to stay entrenched for quite awhile ahead of the storm and the SFC low will still likely follow the wedge boundary... still be it, may Miller B but SFC lows don't bust through entrenched wedges quite so readily and the GFS is notorious for scouring wedges out too quickly..