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    Cleanup begins after devastating tornadoes in the South

    02:31
  • Mississippi tornado survivors come together after loss

    02:45
  • Mississippi residents fear tornado recovery could take years

    02:03
  • Catastrophic tornado kills at least 22 people in Mississippi

    03:17
  • At least 26 killed during severe weather across Southern states

    04:33
  • Stories of survival emerge after deadly tornadoes in the South

    07:58
  • 'It happened so fast': Survivors of deadly tornadoes in Mississippi describe aftermath

    03:12
  • Drone video shows destruction in Georgia after severe storms hit the state

    01:25
  • Residents survey damage after deadly tornadoes rock the South

    02:44
  • Watch: Drone footage captures devastation after deadly tornadoes in Mississippi

    02:00
  • Tornadoes kill dozens across Mississippi and Alabama

    04:59
  • Deadly tornadoes in Mississippi leave behind path of destruction

    01:21
  • Small tornado touches down outside Los Angeles

    02:04
  • Sandstorm puts Beijing's air quality at very hazardous level

    00:55
  • California hit with another storm bringing heavy rains and high winds

    01:16
  • Millions of dead fish clog Australian river after floods and hot weather

    01:00
  • Deadly earthquake shakes Ecuador

    01:30
  • Heavy rain in California easing historic drought

    01:27
  • Deadly flooding hits Turkey still recovering from earthquakes

    01:38
  • Tornado watches in effect for parts of the South

    01:59

Lessons learned from Joplin

02:39

Two years after a tornado destroyed much of Joplin, Mo., the town has come back even stronger with changes to their infrastructures that are helping people stay safe. Now, nearly 80 percent of new homes include a safe room, and a new hospital will open in 2015 with windows able to withstand 250 mph winds. NBC’s Erica Hill reports.