looks like a mesovortex left when a convective burst ended. there's a general low pressure in the area, but the trades are pushing any itcz vorticity right along into central america. as far as models liking a situation.. look further east to the wave near trinidad.. that's got more potential. for next week.
eastpac invest is progressing slowly.. easterly shear aloft will have to simmer down a bit. probably make more progress late sunday into monday.. if it can get to the SW quadrant of the upper ridge to the north. blas perhaps early next week.
HF 1834z29may