Gulf Coast braces for possible hurricane

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This storm could dump more than a foot of rain on parts of Louisiana and Mississippi.

A potential tropical storm is still forming in the Gulf — but the wind may not be its biggest punch.

The system is forecasted to dump a jaw-dropping amount of rain.

Through next Tuesday, the storm is expected to drop between 10 and 20 inches of rain in parts of Mississippi. Some parts of Louisiana could see more than 20 inches.