Jamaica Possibly Spared Ivan's Worst Fury KINGSTON, Jamaica - Hurricane Ivan lashed Jamaica with giant waves and winds nearing 155 mph early Saturday, but as panicked residents braced for a direct hit, the storm unexpectedly wobbled and lurched west, possibly sparing the island the worst of its fury.    The change in course could be good news for hurricane-weary Florida, since Ivan may now head off into the Gulf of Mexico...