Europa non è lontana wrote:00z GFS continues to model development in the western Caribbean at around +180, but it's an outlier; only one other model from this morning's runs and the 12z runs yesterday show this solution. Other models have the precursor disturbance moving into the Pacific before developing.
I'm not sure why they run these models more than 10 days out, unless there is an African wave train with very stable upper air pattern locked in place they aren't worth much.