Nightly News   |  August 26, 2012

Isaac’s path remains unclear

Isaac’s path – whether west toward the Florida Panhandle or east toward New Orleans – is disputed by European and U.S. weather forecasting models. The Weather Channel’s Bryan Norcross has more.

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This content comes from Closed Captioning that was broadcast along with this program.

>> let's bring in bryan norcross . he's tracking the storm. how much potential does it have and where is it going?

>> it a potential to have a tremendous effect because of its size more than its expected strength. look at the satellite picture here and look at athe size. already rain from isaac is spreading north into central florida , and here's the center. you see those purples there. that's an indication that an intensification process has begun. when we look at it generally, it's a huge circulation which is going to come into play as it moves north. we use computer models . this one the ecmwf is the european mplt look at it move north within the cone. here we are tomorrow evening, and outer banding are lashing tampa and ft. myers and the west coast of florida. this computer model takes it up near mobile, alabama. this would be devastating for the florida panhandle bringing tremendous water into the pensacola area. look at this. the american computer model takes it over to louisiana, and that's why there's such a range in the cone here. if this were to happen, this would bring tremendous water into eastern louisiana, up against those levees that are protecting new orleans. so this is a potentially extraordinarily serious situation. lester.

>> bryan norcross , thanks for the