Rare EF5 Oklahoma TornadoMay 21st, 2013 at 5:40 pm by Jason Smith under FOX10 Weather
The tornado that struck Moore, OK yesterday was determined to be an EF5, according to National Weather Service survey teams. These are very violent tornadoes, with winds over 200 mph. Winds of 210mph were estimated based on damage at or near Moore. The tornado was up to two miles wide at times and stayed on the ground for almost 45 minutes. EF5 tornadoes are very rare. Less than 1/10 of 1% of tornadoes are this strong.