I haven't seen the GMO track. A wobble usually means nothing else but that the hurricane makes a quick jump and continuous on its track, just a tad parallel to the original track. I am tracking hurricanes since 1994 when the NHC entered its forecasts (as text only docs back then) on the internet. I used a software called Hurrtrak. I had to input everything manually. Took me almost 30 min to have a forecast track. LOL
A wobble can make a big difference close to land though. I remember Hurricane Erin in 1995 targeted Palm Beach County and just before landfall made quick jog to the north and hit Vero Beach instead. When a hurricane is pushed over land because of a wobble it could change its future significantly.
a) Is the eye completely on land? If only a portion is on land it still gets some of its fuel from the ocean. The change may or may not be just a parallel track. In this case a tad further to the west.
b) If the eye completely on land it will have an effect on intensity and internal structure. Depending how long Irma is on land it could lose some structure or a lot. Right now Irma is steered by upper level atmospheric patterns. If Irma would lose enough structure mid level atmospheric patterns would become the prevailing steering influence.
