A 300-foot portion of the 11-mile-long levee has fallen into Perche Creek. Work began Monday to construct a new section of the levee. The repair should be finished before forecast floods of 27 feet to 33 feet on the Missouri River reach the area.
Cooling centers around Columbia are provided for people who need to find a place to escape the heat this summer.
In Atchison County, a 1 inch to 1½ inch hole has developed in the levee. Emergency management officials said they expected more breaches as the river rises.
While flood waters along the Missouri River could cause damage to residents and towns near the river's edge, endangered wildlife might benefit with the resurgence of high waters.
Volunteers from across the country are in Joplin doing whatever they can to help with the disaster relief effort.
Missouri officials say tornado sirens may not always work correctly and can be hard to hear inside. They're not meant to be the only warning system.
With flooding likely along the Missouri River, Gov. Jay Nixon and other officials were heading to St. Joseph on Thursday to discuss preparations.
Missouri officials have found all people reported missing since the Joplin tornado, but they're now warning residents and clean-up crews about potentially hazardous debris.
As the waters of the Missouri River continue to rise, volunteers, local officials and military personnel flock to the area to help save homes and farmland. Although they're lining the riverbanks with sandbags and dirt, many areas are heavily flooded.
Twelve homeless and formerly homeless volunteers are in Joplin to assist with the cleanup effort. The group also brought donated goods.
Officials have told residents in northwestern Missouri to be ready to evacuate in the next couple of weeks.
Statistics provided by the National Weather Service's Storm Prediction Center track the location and death count of all fatal tornadoes in the U.S. since 2000.
The Environmental Protection Agency has yet to discover serious pollution issues in the tornado's wake, but a systematic assessment of the impact is not complete.
Rescue workers continue to search Joplin for survivors in the face of diminishing odds.
The president spoke at a memorial service for tornado victims on Sunday after touring the destruction.
Reporter Eliza Smith, a Joplin native, reflects on the tornado's aftermath and President Obama's visit.
People lined the streets in Joplin as President Barack Obama came to survey the destruction and speak at a memorial service on Sunday.
Joplin's death toll following the deadly tornado is on the rise, and families continue to search for missing loved ones. After incidents of mistake identification, authorities are using DNA tests and dental records to assist them.
Joplin's death toll is now at least 142, with 100 still missing.
Crews continue search-and-rescue efforts while the state tries to confirm victims' identities. The tornado had an EF-5 rating, which designates storms with 200 mph winds, and killed at least 142 people.