NAM dries out the DGZ quickly after 12z. I think you really need to slam before that time for siggy amounts south of MHT. Unless this keeps going south.
Surface. I think it gets below freezing once you get near MHT and above 500’. You’ll probably fall below 32 as well. If you can slap the DGZ with big VV’s, then even northeast mass can wetbulb to 32.