Published: Sep 02, 2011 1:10 PM EDT
Updated: Jun 27, 2012 9:37 PM EDT

NEW ORLEANS (AP) - Gulf Coast states are in for a drenching from a slow-moving tropical system that has already prompted Louisiana's governor to declare a state of emergency.
 
Tropical storm warnings are out from Mississippi to Texas including New Orleans. The National Hurricane Center says the depression in the Gulf of Mexico will dump 10 to 15 inches of rain over southern areas of Louisiana, Mississippi and Alabama through Sunday and as much as 20 inches in some spots. By Friday, it could become Tropical Storm Lee.
 
Early forecasts are for landfall early Saturday afternoon in south-central Louisiana, though the National Weather Service says it's too early for a firm time or location.
 
According to a hurricane center chart, maximum sustained winds could reach 60 mph by Saturday.
 
Forecasters also expect Tropical Storm Katia (KAH'-tyah) to become a hurricane again out in the Atlantic but they're not sure where it's headed yet.