BigA wrote:To be fair, the maps above are a comparison between deterministic runs (GEM, ECMWF) and the ensemble-mean of the GEFS ensemble. Sorry if this is nitpicking.
It does look like there is decent consensus that there will be a trough of low pressure in the Western Caribbean in the 6-7 day time frame that will move out of the Caribbean into either the eastern Gulf of Mexico or the southwest Atlantic. As usual this time of year, the amount of shear will be a major factor. Most of the models show a strong shear axis located to the north and northwest of whatever comes out of the Caribbean. How this impacts development prospects is not yet knowable with anything near certainty.
BigA I thought the GFS operational was also showing a NW Carib / GOM system but looks like it is out in the Atlantic too similar to the ECMWF, so here is the map for true comparison amongst the operational guidance:
