Flood unease builds south along Mississippi River

More Mississippi River spillways may be breached to ease flooding concerns. In Cairo, Ill., the Ohio had dropped to 60 feet, about a foot and a half lower than it was at the time of the breach.

Frost likely to form in Columbia early Wednesday morning

The frost may harm temperature-sensitive plants typically grown during late spring and summer.

Heavy, sudden flooding continues with 5 inches of rain

Downpours caused more evacuations in areas where the water had been receding.

PHOTO GALLERY: Day-by-day coverage of 2011 flood — Day 5

The mayor of Cairo, Ill., said the well-being of his 2,800 residents outweighs farmland that would be swallowed up by the rush of water.

Obama touring tornado damage: 'I've never seen devastation like this'

As many as a million homes and businesses in Alabama were without power, and Alabama Gov. Robert Bentley said 2,000 National Guard troops had been activated to help.

TORNADOES: Information about the Southern storms

At least 280 people have been reported dead following a storm system that spawned dozens of tornadoes in the Southern United States on Wednesday.

PHOTO GALLERY: Tornado damage in Alabama

The death toll from the wave of severe storms and tornadoes in the southern United States on Wednesday has risen to over 200. On Thursday, Alabama residents returned to their homes to survey the damage.

Death toll from severe Southern storms climbs above 200

The storms Wednesday spawned tornadoes and winds in five Southern states: Alabama, Virginia, Tennessee, Mississippi, and Georgia. All five states have reported fatalities; 128 have been confirmed dead in Alabama.

Volunteers work to stop flooding in southeast Missouri towns

Relentless rain over the past several days has residents rushing to prevent floodwaters from invading their communities.

Poplar Bluff avoids deaths from storms; flooding persists in Midwest

Although Missouri has no death toll from the recent storms and tornadoes ravaging parts of the Midwest, others have not been as lucky.

PHOTO GALLERY: Levee breached; Poplar Bluff flooded

After days of rain, parts of Poplar Bluff have been submerged. One of the levees has been breached by the Black River, and some residents are evacuating their homes. The Red Cross has set up a shelter at the Black River Coliseum.

Levees ready to burst as rain pounds central U.S.

Floodwaters are rising all over the Midwest. Popular Bluff is an area of great concern with 1,000 residents already evacuated and more expected by Tuesday afternoon.

All-county tornado sirens intended to provide more useful warning

Tornado sirens are set up to sound for any threat in Boone County. This policy is based on the unpredictable nature of tornadoes.

Weather Service details St. Louis tornado

The National Weather Service has compiled maps, photos and updated information about the Good Friday tornado.

UPDATE: Unconfirmed tornadoes strike St. Louis, surrounding communities

Damage occurred at Lambert-St. Louis International Airport and at several communities around the airport, including: Bridgeton, St. Ann, Ferguson and Florissant.

UPDATE: Airport closed after possible tornadoes slash through St. Louis

The strong storm lifted the roof off Concourse C at Lambert-St. Louis International Airport, causing plate glass to shatter and fly everywhere.

Possible tornado causes injuries at Lambert Airport in St. Louis

An apparent tornado caused damage at Lambert Airport, and other possible tornadoes were reported at several towns near the airport, including: Maryland Heights, Bridgeton, St. Ann, Ferguson and Florissant.

No injuries, but plenty of damage from Missouri storms

Three tornadoes reportedly touched down in northeast Missouri. High winds were reported in southeast Missouri. More severe weather is expected later this week.

Rising Mississippi River flooding some Missouri towns

The river is expected to reach near flood stage by early next week in towns such as Canton, Hannibal, Louisiana, Clarksville and Winfield.

Severe weather expected Tuesday afternoon in mid-Missouri

Thunderstorms could bring tornado warnings, hail and strong wind, the National Weather Service said.