PANAMA CITY BEACH The National Hurricane Center issued a hurricane watch for much of the Panhandle, including Bay County, early Sunday, as a strengthening Tropical Storm Isaac approached the Florida Keys.
The storm is expected to cross the Keys later Sunday and enter the Gulf of Mexico. Its exact track is uncertain once it gets into the Gulf, but the storm is generally expected to strengthen into a hurricane and make landfall between southeast Louisiana and the Florida Panhandle midweek.
In advance of Isaac's landfall, forecasters early Sunday issued a tropical storm warning for coastal portions of Franklin County, and hurricane watch for coastal portions Walton, Bay and Gulf counties. The watch extends to the mouth of the Mississippi in Louisiana.
A NOAA research plane will investigate Isaac again Sunday afternoon, Dr. Rick Knabb, National Hurricane Center director, said on The Weather Channel on Sunday morning. That may help resolve a dispute between the two most reliable models the government uses to predict hurricanes, which has kept the forecast for landfall uncertain.
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