as of this morning, ivan is a beast. it is a cat 5 hurricane (big as hell) with winds estimated at a sustained 160mph. some recon data indicated packets of wind in excess of 200mph (essentially a borderline F4 tornado). if a storm this size was to make landfall it could easily scour the land much like the larger tornados do. the bright side of the current intensity is that storms have a very difficult time sustaining themselves at this strength, so weakening is likely. also, the interaction with the landmass of cuba and the cooler waters that it would go through before hitting florida could shave some strength off this monster.
jamacca is in a very bad place right now and if it even takes a glancing blow, it is likely to have some major cleanup to do. my thoughts go out to all of the people down there as they brace for a hit.