Multivortex tornado

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Video from the 2013 El Reno tornado showing several of its sub-vortices.

A multivortex tornado is a tornado that consists of several smaller sub-vertebrae that circle around a common center or within a common center. Multivortex tornadoes are not to be confused with twin tornadoes, where each vertebra forms its own center and develops independently of the other vertebra. The sub-vertebrae usually appear in groups of 2 to 5 vertebrae at a time, with each vertebra usually lasting less than a minute. The vortices within the center are often not visible from the outside.

Multiple-vortex tornado of Dallas , 1957

Known multivortex tornadoes

date designation Strength place description
May 22, 2011 Joplin tornado 2011 EF5 Joplin , Missouri , USA On the afternoon of May 22, 2011, a particularly devastating EF5 multivortex tornado swept over the city of Joplin, Missouri, killing 158 people.
May 31, 2013 El Reno tornado 2013 EF3 El Reno and Oklahoma City , Oklahoma , USA A popular case of a multivortex tornado was the El-Reno tornado on May 31, 2013 in the US state of Oklahoma, which was also the tornado with the largest diameter ever measured at around 4.2 km. The EF3 tornado caused widespread destruction and multiple deaths. A mobile Doppler radar recorded a wind maximum of around 475 km / h.
May 5, 2015 Bützow tornado 2015 F3 Bützow , Mecklenburg-Western Pomerania , Germany A multivortex tornado devastated Bützow in Mecklenburg-Western Pomerania. Twirling debris injured about 30 people. This tornado probably reached a magnitude of F3 on the Fujita scale . On the same day, according to the European Severe Weather Database, there were three more tornado events in Germany. It was one of the best-documented multivortex tornadoes in Germany.
Destruction caused by the 2011 Joplin tornado.

Individual evidence

  1. ↑ The Online Tornado FAQ (by Roger Edwards, SPC). Retrieved May 21, 2017 .
  2. ↑ Multiple Vortex Tornado (Online Tornado FAQ). Retrieved May 21, 2017 .
  3. ↑ http://www.crh.noaa.gov/images/pah/pdf/elite/EliteSpotterWorkshopSlidesSection3.pdf
  4. ↑ 6th Anniversary of the Joplin Tornado - May 22nd, 2011. Retrieved June 5, 2017 .
  5. ↑ a b El Reno: Widest Tornado on Record Remembered Two Years Later. Retrieved May 21, 2017 .