Irma is 150mph and moving West as it approaches the Leewards

[Amishman]

7. There is no such thing as a CAT 6, and several models are overstating the strength

The GFS and HMON are the ones giving most of the insane sub 900 pressure predictions. They are not coupled to the ocean, meaning they do not factor in some of the physics which puts a ceiling on hurricane strength. This usually isn't a problem as other conditions are often not perfect enough to push towards that ceiling.

Cat 4 or low cat 5 is probably the high end plausible strength, and is scary enough