The biggest winner so far in determining the TS Issac track has been WxRisk.com. David Tolleris correctly chose the Central Gulf as the target zone. Now that Issac is past the disruption of dry air and Hispaniola + Cuba we will now see the various tools used to determine the track of the system become more accurate.
In the Water Vapor image below I highlighted the frontal system stretching across the middle of the country and the current direction of the moisture plume preceding Issac. Eventually Issac's circulation will be influenced by the front and be turned right. The question is whether that influence and the weakness between the Bermuda High and the Inland heat ridge draws the storm sooner or later.
|Source: Univ of Wisconsin SSEC|