A massive tornado hit Moore, Oklahoma, on May 20, 2013, killing 24 people and causing an estimated $2 billion in property damage. Photographs taken then and now reveal the progress that has been ...

Aspiring meteorologist motivated by sisters killed in EF5 tornado 12 years ago 03:13. Twelve years ago, the last EF5 tornado to hit the United States tore through Moore, Oklahoma. The violent ...

It's been 12 years since the historic, deadly Moore, Oklahoma, EF5 tornado. New research has given light as to why no U.S. tornado has achieved an EF5 rating since.

In 1974, a high school commencement ceremony in Moore, Okla., was interrupted by a tornado warning. Decades later, students finally turned their tassels. Nuala Murray South dressed for her high ...

But her two sisters, 4-year-old Karrina and 7-month-old Sydnee, died when the tornado flattened their house. She survived the last EF5 tornado at age 8. 12 years later, she's studying to be a ...

It's been 12 years since the historic, deadly Moore, Oklahoma, EF5 tornado. New research has given light as to why no U.S. tornado has achieved an EF5 rating since.