I'm listening to HurricaneCity - Jim's still calling for an Alabama landfall -- as a CAT 4.
There is no place in the GOM--short of Mexico--that can absorb a Cat 4 storm.
(1) Models all pointing to an area centered on Mississippi coast, with range being New Iberia, LA to Mobile, AL (see image below).
(2) Accuweather fears that Katrina could be a borderline Category FIVE storm at landfall. The name "Camille" came up.
(3) Hurricane center's intensity forecasts are nearly that high, and they agree with the above track forecasts. The NHC currently figures on a category 4 storm at landfall -- while acknowledging a model run that agrees with Accuweather.