SATURDAY NIGHT UPDATE: Authorities in Louisiana say another person has died in the dangerous floods, raising the death toll to three.
Michael Martin, chief of operations for the St. Helena Sheriff's Office, said authorities recovered a woman's body on Saturday from the Tickfaw River.
He said the woman, her husband and the woman's mother-in-law were driving on a state highway Friday when their car was swept off the road.
The woman's husband and mother-in-law had been clinging to a tree for hours before they were rescued Saturday.
They were among more than 1,000 people who had to be rescued as heavy rains fell during a short span, surprising a lot of residents.
The U.S. Coast Guard says it rescued five people from flood waters in the Baton Rouge area today.
ORIGINAL STORY: Louisiana's governor says National Guard soldiers and other rescuers in boats and helicopters have plucked more than 1,000 people from their homes and cars as "unprecedented, historic" flooding swamped Louisiana.
At least two people have died.
Louisiana Gov. John Bel Edwards says officials still don't know how bad the flooding will get and warned residents not to rely on past experience when deciding on a course of action. He says residents advised to evacuate should do so.
The National Weather Service says the storm system is drifting slowly west after drenching the southeastern part of the state. A flash flood warning has been issued for southwestern Louisiana.
Flash flood warnings remain in effect for southeastern Louisiana, and more than a half dozen counties in Mississippi are under a flood watch until Sunday.
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