
http://www.ssec.wisc.edu/~rickk/ivan.html
After the loop loads click on the NHC track...
On its current motion, including the wobbles, the eye should pass directly over the center of the island.
If anything i believe Ivan would pass slightly to the northern side of the island sparing Jamaica the worst quadrant of the storm.
The Bermuda High that was to keep Ivan more wnw over this period has been retrograding slowly over time, due to the low wraping around its southeastern periphery, disrupting the westerly steering currents above, and ahead of Ivan.
-Eric
http://cimss.ssec.wisc.edu/tropic/real-time/atlantic/winds/wg8dlm5.GIF