In 2013, tornadoes hit Oklahoma on January 29, March 30, April 17, April 18, May 15, May 19, May 20, and May 29.
The most significant tornado, the Moore EF5, was on May 20. Another major tornado hit Shawnee on May 19.
The have been numerous tornadoes in Oklahoma in 2013. The most significant of these tornadoes hit Moore, a suburb of Oklahoma City.
Oklahoma city was devastated by a mile wide F5 tornado on May 3, 1999.
Tornadoes do not have names, though they may be referred to based on where and sometimes when they hit. There were no recorded tornadoes in Oklahoma on May 22, 2013. However, a devastating tornado tore through Moore, Oklahoma on May 20. This tornado will be remembered as the 2013 Moore tornado or the 2013 Moore, Oklahoma tornado. The year, in this case, is necessary to distingush this from other major tornadoes that have hit Moore.
Oklahoma was hit by numerous tornadoes in 2013, most of them of the supercell variety. Tornadoes of all intensities, ranging from EF0 to EF5 struck the state. An EF4 tornado struck Shawnee while an EF5 hit Moore.
As of May 3, 2012 the last tornado to hit Oklahoma was on April 30.
In recent times, an EF5 tornado struck two elementary schools in Moore, Oklahoma on May 20, 2013. Seven students were killed at one of the schools.
The largest tornado outbreak to impact Oklahoma was the outbreak of May 3, 1999. On this day Oklahoma was hit by 58 tornadoes, including an extremely destructive F5 that moved through the Oklahoma City area.
As of June 2, 2013, the last confirmed tornado to affect Oklahoma appears to have been an EF0 on the north side of Moore on May 31. However, surveys are still underway, and more tornadoes from later that same day may be confirmed. The tornado was one of several that affected the Oklahoma City area on that day, including an EF3 that killed at least 7 people near El Reno.
The last F5 or EF5 tornado to hit the United States was on May 20, 2013 in Moore, Oklahoma. The last U.S. tornado to be rated F5 on the original Fujita scale (though EF5 is essentially the same rating) was the Bridgecreek-Moore, Oklahoma tornado of May 3, 1999.
No. The El Reno, Oklahoma tornado of May 31, 2013 dissipated between El Reno and Yukon. The thunderstorm that produced the El Reno tornado did produce four other tornadoes in the Oklahoma City area. One of these, an EF0, caused some damage on the north side of Moore. The EF5 tornado that devastated Moore in 2013 occurred on May 20 and was unrelated to the El Reno tornado.
Tornadoes hit Oklahoma every year.
Hammon was hit by an EF2 tornado on March 8, 2010.