Forecasters say it's rare when a hurricane like Isaac moves completely inland and then part of it makes its way back into the Gulf and strengthens again. They're keeping an eye on an organized batch of thunderstorms about 100 miles south of the Mississippi Delta.
Fred Schmude is a hurricane expert with Houston-based Impact Weather.
"Now the main actual part of the low-level center of Isaac actually dissipated across the Ohio Valley earlier this week on Sunday and Monday, so this is just a remnant piece, upper level piece of energy, so it's trying to reorganize right now over the northern Gulf of Mexico. It's having a hard time doing it, but it is there and it's a little piece of Isaac."
Shmude says even if the storms do become more organized, they won't likely affect the Texas Gulf Coast.
"I'd say right now there's a 40-50 percent chance this will reorganize into a tropical depression. More than likely though if there's any track it's going to move up toward the northeast, toward north Florida. I don't see it being much of a threat though to Louisiana or the Texas coast."
He says fast-forming storms like this one can be dangerous. In September of 2007, Hurricane Humberto formed in less than 24 hours in the northwestern Gulf and came ashore as a Category 1 hurricane between Galveston and Beaumont. That storm caused damage estimated at $50 million dollars.