The storm that was once Hurricane Barry continued to bring flash-flood watches as the storm's heavy rain continued to move slowly inland Monday.

Much of Louisiana and Mississippi remained under flash-flood watches Monday, as well as parts of Arkansas, eastern Texas, western Tennessee and southeastern Missouri. More than a foot of rain was reported north of Lake Charles, Louisiana.

Terrebonne Parish in Louisiana ordered about 400 people to evacuate on Sunday after a levee on the Mississippi River was overtopped by water for part of the day, the Associated Press reported. A levee in Plaquemines Parish was also overtopped. The floodwaters began to recede on Monday, and residents were allowed to return, though officials warned that some homes may still in inaccessible.

Weather in your inbox

Forecast Location

Sign Up

By signing up you agree to the Terms & Privacy Policy. Unsubscribe at any time.

Also in Terrebonne Parish, the U.S. Coast Guard rescued a dozen people and a cat from Isle de Jean Charles early Saturday when high water made the only road to the island impassable.

(MORE: The Latest on Barry)

The National Weather Service said soggy ground and high winds had caused trees to fall in Adams County, Mississippi early Sunday.

More than 50,000 customers were without electricity Monday morning, according to poweroutage.us.