GFS issue in a nutshell. Look at the pacific wave digging off the California coast. GFS is way east of the Euro and every other model. It uses that system to create some sort of a Fugiwara effect that traps the 500mb low in the northern plains.
GFS is well west of 18Z also. Trend is towards a faster capture and northward acceleration.
GFS still hits us with a lot of rain, but only cause a piece of the low hands back over the carolinas. This is suspect given the trend the last few runs.
Center still on the north end of the convection, but at least there is convection. Probably will help it in the long run if it can avoid interaction with Honduras. Hopefully the 18z GFS is wrong keeping it a weak TS.