Power of Okla. tornado surpassed Hiroshima bomb
Tuesday, May 21, 2013 - 16:30
in Earth & Climate
National Weather Service upgrades Okla tornado to its top-of-the-scale rating of EF-5, with winds estimated between 200-210 mph
National Weather Service upgrades Okla tornado to its top-of-the-scale rating of EF-5, with winds estimated between 200-210 mph