Look at this model and look off to the east of Ike. <a href="http://moe.met.fsu.edu/cgi-bin/cmctc2.cgi?time=2008091000&field=850mb+Vorticity&hour=Animation" target="_blank">http://moe.met.fsu.edu/cgi-bin/cmctc2.cgi?time=2008091000&field=850mb+Vorticity&hour=Animation</a>