Ehhh.
This setup is not like a typical Miller B fashion.
Imo the h5 ULL & energy kind of at a high latitude. Considering too the parent High(high latitude) and it's ridge axis entending south. Not much of a meso high into PA,MD,VA.
If you have noticed too the parent high doesn't really move. That indicates blocking up stream.
But considering all in all I'd said that's a reasonable call.