As I’ve said, don’t be surprised if the rainfall ends up being as big a story from this as any aspect. I mean those 10-20”+ amounts on the 18Z GFS probably cover some 20K miles (that’s 2/3 the size of the state of SC). I was checking some other SE storms like Floyd, Joaquin, Florence, Alberto, and Matthew. Based on this, I think that the 18Z GFS might be making it close to a record dumping for one storm in the SE. It is possible that only Florence would exceed this model run. (Harvey isn’t a SE storm. So, it isn’t being considered. This wouldn’t get close to Harvey, which may be a 1 in 1000 year event.)