Is a Category 6 Hurricane Meteorologically Possible?

Thinking about it, one limit is going to be that there can only be so much energy at the center before it stops being a hurricane and is something else, like an explosion.

To use the previously mentioned example of a hypercane fueled by the aftermath of an asteroid strike it happened in the aftermath because the actual asteroid strike is too violent, transient and energetic for something like a hurricane to form.