http://news.yahoo.com/s/ap/20110507/ap_on_re_us/us_severe_weather_flooding-snip-
Record river levels, some dating as far back as the 1920s, were expected to be broken in some parts.
In Louisiana, state officials warned residents that even if a key spillway northwest of Baton Rouge was opened, residents should expect floods comparable to those of 1973. Some of Louisiana's most valuable farmland is expected to be inundated with water.
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More than 4 million people live in 63 counties and parishes adjacent to the Mississippi and Atchafalaya rivers from Cairo, Illinois south to the Gulf of Mexico, down from 4.1 million in 2000, according to a census analysis by The Associated Press.
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Most of the increased population comes in Memphis, where the county population has increased from 223,000 to nearly 1 million. Other big population increases were in Ascension, East Baton Rouge and Jefferson parishes in Louisiana, which combined increased by nearly 900,000 people and DeSoto County, Miss., which increased by 137,000 people.
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About 950 households in Memphis and about 135 other homes in Shelby County were getting the notices, Shelby County Division Fire Chief Joseph Rike said. Shelters were opened, and the fliers include a phone number to arrange transportation for people who need it.
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