As Zeta moves into an area of greater shear at the high level almost all the convection is gone. The bare-bones LLC still has a lovely symmetry with a well-defined center, but it appears Zeta will continue to be steered into higher shear, and it isn't looking as though there is any way to recover the convection at this point.

The CIMSS product shows a level of favorable shear at mid-level, but shear can be seen on the sat visual acting on the shallow level of convection.

Even though Zeta has moved into an area of slightly warmer ocean temperatures the last 12 hours or so, apparently other conditions contribute to an environment that is not conducive to development.