UPDATE: Missouri river levee springs second partial breach

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.

Missouri River flood could rejuvenate endangered wildlife

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 pour into Joplin to help with tornado relief effort

Volunteers from across the country are in Joplin doing whatever they can to help with the disaster relief effort.

Officials caution against reliance on tornado sirens

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.

Missouri officials to discuss flood preparation

With flooding likely along the Missouri River, Gov. Jay Nixon and other officials were heading to St. Joseph on Thursday to discuss preparations.

UPDATE: 134 now confirmed dead after Joplin tornado

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.

PHOTO GALLERY: Missouri River Floods Upper Midwest

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.

Joplin helped by Kentucky homeless group

Twelve homeless and formerly homeless volunteers are in Joplin to assist with the cleanup effort. The group also brought donated goods.

Northwest Missouri prepares for flooding

Officials have told residents in northwestern Missouri to be ready to evacuate in the next couple of weeks.

SHOW ME THE RECORDS: U.S. killer tornado statistics

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.

Environmental dangers a possibility after Joplin tornado

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.

Search for survivors continues in Joplin

Rescue workers continue to search Joplin for survivors in the face of diminishing odds.

Obama tours twister-ravaged neighborhood in Joplin

The president spoke at a memorial service for tornado victims on Sunday after touring the destruction.

Dispatches from Joplin: Don't forget about us

Reporter Eliza Smith, a Joplin native, reflects on the tornado's aftermath and President Obama's visit.

PHOTO GALLERY: Joplin welcomes President Obama

People lined the streets in Joplin as President Barack Obama came to survey the destruction and speak at a memorial service on Sunday.

UPDATE: Joplin official lowers tornado death toll to 139

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.

UPDATE: 2011 now deadliest year for tornadoes since 1950

Joplin's death toll is now at least 142, with 100 still missing.

2011 now deadliest year for tornadoes since 1950

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.

Restaurants raise funds for victims of tornado in Joplin

Bleu Restaurant and Wine Bar, D. Rowe’s and Harpo’s planned special events that will give their customers a chance to help.

PHOTO GALLERY: Joplin rebuilds and recovers after tornado

Joplin residents adjust to life after the devastating tornado, while beginning the arduous process of rebuilding their home.