The National Hurricane Center is predicting that Tropical Storm Barry will strengthen to a hurricane before it makes landfall in Louisiana on Saturday.
Officials along the gulf coast are urging residents to get ready for Barry.
Barry, currently a tropical storm, is predicted to become a category one hurricane before it makes landfall.
The slow-moving storm is expected to bring heavy rainfall, flash flooding, and storm surge.
A state of emergency has been declared in Louisiana, with mandatory evacuations ordered for low-lying parts of the state.
Officials are expected to close dozens of floodgates to help lower the flood risk.
But the amount of water expected from this storm is a huge concern for state officials.
Parts of New Orleans already experienced flooding this week and the Mississippi River is forecast to crest Saturday at levels not seen in almost 70 years.