Looks like another sub-vortex has spun up inside the broad center of the storm, based on the radar. There isn't as much shear evident as there was yesterday, so the storm may have a better chance to intensify more with each new burst of convection (like the one that is flaring up now).

There are also some 64+ knot wind speeds at beam height showing up on the radial velocity from the Melbourne radar in the last couple of frames. If that persists, the wind speeds with the system will likely have to be taken up a notch in the next advisory.