El Reno 2013
The 2013 El Reno tornado , which occurred in the late afternoon of May 31, 2013 in the area around the cities of El Reno and Oklahoma City in the US state of Oklahoma , was the largest recorded tornado to date, measuring approximately 4.2 km in diameter . According to the extended Fujita scale , it was initially assigned to class EF5, with a mobile Doppler radar recording a maximum wind speed of 475 km / h. The National Weather Service later downgraded the tornado to the EF3 category.
procedure
The first recording with ground contact was on May 31, 2013 at 18:03 after central summer time (23:03 UTC ) about 13.4 km west-southwest of El Reno and the last recording was on May 31, 2013 at 18:43 after central daylight saving time (23:43 UTC ), when he reached Interstate 40 east of El Reno . It therefore lasted 40 minutes. At times it moved at a speed of over 88 km / h and its track length was around 26 km. However, this was very unpredictable and unsteady, with it moving towards the southeast at the beginning and then towards the north-east, which was to have a devastating effect on many of the storm chasers present .
Properties and effects
The El Reno tornado wreaked havoc, killing at least 8 people and injuring many. Among the fatalities was also the storm chaser Tim Samaras , who became known through the program Crazy About Tornados (English: Storm Chasers ), as well as his son Paul Samaras and the meteorologist and friend Samaras' Carl Young. In addition to its sheer size, the tornado had other special features: On the one hand, it was a multivortex tornado , which has the property that it consists of several small eddies that revolve within and around a common center. Multivortex tornadoes are therefore not to be confused with twin or satellite tornadoes, where each vortex largely develops from the other. As mentioned above, his train path was also very unpredictable.
Web links
- "The Tornado Project - In the Eye of the Storm" - Documentation on the El Reno 2013 Tornado , Youtube.de , November 14, 2015, accessed on August 27, 2018
Individual evidence
- ↑ a b c d El Reno: Widest Tornado on Record Remembered Two Years Later. Retrieved May 21, 2017 .
- ↑ a b National Geographic (ed.): Why a Killer Tornado Got Only a "3" Rating . October 24, 2013, ISSN 0190-8286 ( nationalgeographic.com [accessed June 1, 2017]).
- ↑ Multiple Vortex Tornado (Online Tornado FAQ). Retrieved May 21, 2017 .
- ↑ The Online Tornado FAQ (by Roger Edwards, SPC). Retrieved May 21, 2017 .