(CBS News) A band of storms downed trees and flooded roads in parts of Mississippi and Alabama and appeared headed toward Georgia.
The National Weather Service in Mississippi said it had received reports Sunday of some mobile homes blown off blocks, along with streets flooded in several areas. Flash flood warnings or watches stretched from Louisiana to Georgia on Sunday night.
Tornado watches and severe thunderstorm warnings were also issued for parts of Louisiana, Mississippi and Alabama.
The threat of severe weather was expected to last until Monday morning in Alabama, and the storms were moving east into Georgia.
Mississippi authorities say a missing child in Yazoo City is believed to have been swept away by flash flood waters.
While authorities worked to find the 9-year-old girl missing since Sunday night, the state also was coping with heavy rains and storms that continued early Monday. The Mississippi Emergency Management Agency said a possible tornado damaged homes in Covington County, where seven minor injuries were reported. Wind damage also was reported in Neshoba County.
Major Tillmon of the Yazoo City Police Department said the girl was last seen around 7 p.m. Sunday and she is believed to have been caught up in flood waters outside the back door of her parents' house.
The 9-year-old girl was last seen wearing a pink dress and red tennis shoes. Authorities are not releasing the identity of the girl.
Yazoo County Director of Emergency Management, Joey Ward said emergency crews, a dive team, and volunteers searched rain-swollen drainage ditches until about midnight. He said the search had resumed early Monday.
Ward said a dive crew from Yazoo County was out at the scene and searched the drainage ditches on 8th Street, Lee Avenue, 7th Street, and Martin Luther King Dr.
Yazoo County and Yazoo City volunteers were called out to search local drainage ditches.
On Sunday, street flooding plagued Jackson. Flood advisories for much of the state continued into Monday.
In Warren County, Sheriff Martin Pace said a dam on private property broke Sunday in the Bovina area off Interstate 20.
Pace said the water covered portions of Warriors Trail. He said no homes were in danger.
Byram residents in the Robinson Estates also experienced some flooding. Residents had to park their vehicles at the entrance of the subdivision.
The National Weather Service has issued a flood warning for the Pearl River, which is expected to crest at 32.5 feet on Thursday afternoon in the Jackson area, said meteorologist Ed Tarver.
At its highest projected point, the Pearl would be more than 4 feet above its flood stage, he said, adding at that point it's considered minor flooding.
Tarver said there's a 70 percent chance for another round of showers and thunderstorms to hit the Jackson area on Tuesday.
Parts of central Alabama were under a flash flood warning Monday morning as heavy rain continued to pelt the state's midsection.
The National Weather Service issued flash flood warnings, tornado warnings and severe thunderstorm warnings for some parts of the region.
Shelby County sheriff's deputies helped evacuate residents of a mobile home park around 3 a.m. Monday because of dangerous conditions resulting from flash flooding.
Some roads in Birmingham became impassable due to heavy rainfall. WBMA-TV video showed firefighters helping a motorist stranded in about two feet of water shortly after midnight.
A number of schools in the rain-drenched areas delayed openings Monday morning.
A National Weather Service survey team traveled to Dallas County in southern Arkansas to examine storm damage there and says there is no sign that the damage was caused by a tornado.
Warning coordination meteorologist John Robinson with the weather service in North Little Rock says the team on Sunday found numerous trees snapped or uprooted along the path of the storm from south of Dalark through Manning to Carthage.
Other damage includes a crushed vacant house, roof damage to mobile homes and several houses and a crushed pickup truck.
The Thursday night and early Friday storms produced tennis ball-sized hail and left more than 51,000 Entergy Arkansas customers without power at its peak.