. >> reporter: kieva ellis is here. a town that appears to have been disappeared.iverting floodwaters into farm land. this is what the area near carrow looked like before the levee break. and this is what it looks like now. >> reporter: the immediate threat in this area is over. but the worst could be ahead for people living further downstream. army engineers say more levee blasts may be necessary. >> reporter: days of rain are pushing the mississippi to record levels. the rising water is now heading south. towns and cities in tennessee and mississippi are bracing for what could be the worst flooding since the 1930s. >> reporter: residents are loading up sandbags and bringing them to homes in low- lying areas. >> prepare for the worst and hope for the best. >> the river is expected to crest in memphis, tennessee, a week from today. >> wow. what pictures. the federal government is promising to lend aid to farmers. >>> here in maryland, clouds are still lingering on a pretty cool may evening. a live look outside right now. there is the sun, though. talking about the