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Multiple Vortex Tornado
A multiple-vortex tornado is a tornado that contains several vortices (called subvortices or suction vortices) revolving around, ''inside'' of, and as part of the main vortex. The only times multiple vortices may be visible are when the tornado is first forming or when condensation and debris are balanced such that subvortices are apparent without being obscured. They can add over 100 mph to the ground-relative wind in a tornado circulation and are responsible for most cases where narrow arcs of extreme destruction lie right next to weak damage within tornado paths. General Suction vortices (or suction spots) are really substructures of many, perhaps all, tornadoes but are not always easily visible. These usually occur at the base of the tornado vortex where the tornado makes contact with the surface. Subvortices tend to form after vortex breakdown reaches the surface and are resultant from the ratio of cyclonically incoming and rising air motions. Multivortex structure is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2011 Joplin Tornado
A devastating EF5-rated multiple-vortex tornado struck Joplin, Missouri on the evening of Sunday, May 22, 2011. Part of a larger late-May tornado outbreak, the tornado touched down just west of Joplin and intensified very quickly, reaching a maximum width of nearly during its path through the southern part of the city. The tornado tracked eastward through Joplin, and then continued across Interstate 44 into rural portions of Jasper and Newton counties, weakening before it dissipated. The tornado devastated a large portion of the city of Joplin, damaging nearly 8,000 buildings, and of those, destroying nearly 4,000. The damage—which included major facilities like one of Joplin's two hospitals as well as much of its basic infrastructure—amounted to a total of $2.8 billion, making the Joplin tornado the costliest single tornado in U.S. history. The insurance payout was the highest in Missouri history, with the previous record of $2 billion being the April 10, 2001 hail sto ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1999 Bridge Creek–Moore Tornado
On the evening of Monday, May 3, 1999, a large and exceptionally powerful F5 tornado registered the highest wind speeds ever measured globally; winds were recorded at by a Doppler on Wheels (DOW) radar. Considered the strongest tornado ever recorded to have affected the metropolitan area, the tornado devastated southern portions of Oklahoma City, Oklahoma, along with surrounding suburbs and towns to the south and southwest. The tornado covered during its 85-minute existence, destroying thousands of homes, killing 36 people (plus an additional five indirectly), and leaving US$1 billion (1999 USD) in damage, ranking it as the fifth-costliest on record not accounting for inflation. It was the first use of the tornado emergency statement by the National Weather Service. The tornado first touched down at 6:23 p.m. Central Daylight Time (CDT) in Grady County, roughly south-southwest of the town of Amber. It quickly intensified into a violent F4, and gradually reache ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Enhanced Fujita Scale
The Enhanced Fujita scale (abbreviated as EF-Scale) rates tornado intensity based on the severity of the damage they cause. It is used in some countries, including the United States, Canada, China, and Mongolia. The Enhanced Fujita scale replaced the decommissioned Fujita scale that was introduced in 1971 by Ted Fujita. Operational use began in the United States on February 1, 2007, followed by Canada on April 1, 2013. It has also been proposed for use in France. The scale has the same basic design as the original Fujita scale—six intensity categories from zero to five, representing increasing degrees of damage. It was revised to reflect better examinations of tornado damage surveys, in order to align wind speeds more closely with associated storm damage. Better standardizing and elucidating what was previously subjective and ambiguous, it also adds more types of structures and vegetation, expands degrees of damage, and better accounts for variables such as differences in con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Oklahoman
''The Oklahoman'' is the largest daily newspaper in Oklahoma, United States, and is the only regional daily that covers the Greater Oklahoma City area. The Alliance for Audited Media (formerly Audit Bureau Circulation) lists it as the 59th largest U.S. newspaper in circulation. ''The Oklahoman'' has been published by Gannett (formerly known as GateHouse Media) owned by Fortress Investment Group and its investor Softbank since October 1, 2018. On November 11, 2019, GateHouse Media and Gannett announced GateHouse Media would be acquiring Gannett and taking the Gannett name. The acquisition of Gannett was finalized on November 19, 2019. Copies are sold for $2 daily or $3 Sundays/Thanksgiving Day; prices are higher outside Oklahoma and adjacent counties. Ownership The newspaper was founded in 1889 by Samuel W. Small, Sam Small and taken over in 1903 by Edward K. Gaylord. Gaylord would run the paper for 71 years, and upon his death, the paper remained under the Gaylord family. It wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
TWISTEX
TWISTEX (a backronym for Tactical Weather-Instrumented Sampling in/near Tornadoes Experiment) was a tornado research experiment that was founded and led by Tim Samaras of Bennett, Colorado, US, that ended in the deaths of three researchers in the 2013 El Reno tornado. The experiment announced in 2015 that there were some plans for future operations, but no additional information has been announced since. Background The project normally ran from mid-April through the end of June with a domain that covers the Great Plains and portions of the Midwestern United States. The project was normally at full strength for most of May and June with four vehicles, all equipped with roof-mounted mobile mesonet weather stations. One of the vehicles transported an array of in situ thermodynamic and video probes. Due to graduate and upper-division undergraduate student participant availability, a reduced vehicle compliment consisting of the in situ probe deployment truck and one support mesonet s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tim Samaras
Timothy Michael Samaras (November 12, 1957 – May 31, 2013) was an American engineer and Storm chasing, storm chaser best known for his field research on tornadoes and time on the Discovery Channel show, ''Storm Chasers (TV series), Storm Chasers''. He died in the 2013 El Reno tornado. Early life Samaras was born November 12, 1957, in Lakewood, Colorado, to Paul T. and Margaret L. Samaras. Paul (1925–2005) was a photographer and model airplane distributor who was an Army projectionist in WWII. Tim assisted in the photography and shop work. Margaret was born in 1929 and died in 1996. His mother talked him into watching an annual television broadcast of ''The Wizard of Oz (1939 film), The Wizard of Oz'' at age six. "When the tornado appeared," he recalled. "I was hooked!" Samaras attended Lasley Elementary and O'Connell Junior High in Lakewood, before graduating from Alameda International Junior/Senior High School in 1976. In his twenties, he began to chase storms "not for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2013 El Reno Tornado
During the early evening of Friday, May 31, 2013, a very large and powerful tornado occurred over rural areas of Central Oklahoma. This rain-wrapped, multiple-vortex tornado was the widest tornado ever recorded and was part of a larger weather system that produced dozens of tornadoes over the preceding days. The tornado initially touched down at 6:03 p.m. Central Daylight Time (2303 UTC) about west-southwest of El Reno, rapidly growing in size and becoming more violent as it tracked through central portions of Canadian County. Remaining over mostly open terrain, the tornado did not impact many structures; however, measurements from mobile weather radars revealed extreme winds up to within the vortex. These are among the highest observed wind speeds on Earth, just slightly lower than the wind speeds of the 1999 Bridge Creek–Moore tornado. As it crossed U.S. 81, it had grown to a record-breaking width of , beating the previous width record held by the 2004 Ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Enhanced Fujita Scale
The Enhanced Fujita scale (abbreviated as EF-Scale) rates tornado intensity based on the severity of the damage they cause. It is used in some countries, including the United States, Canada, China, and Mongolia. The Enhanced Fujita scale replaced the decommissioned Fujita scale that was introduced in 1971 by Ted Fujita. Operational use began in the United States on February 1, 2007, followed by Canada on April 1, 2013. It has also been proposed for use in France. The scale has the same basic design as the original Fujita scale—six intensity categories from zero to five, representing increasing degrees of damage. It was revised to reflect better examinations of tornado damage surveys, in order to align wind speeds more closely with associated storm damage. Better standardizing and elucidating what was previously subjective and ambiguous, it also adds more types of structures and vegetation, expands degrees of damage, and better accounts for variables such as differences in con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1957 Dallas Multi-vortex 1 Edited
1957 (Roman numerals, MCMLVII) was a Common year starting on Wednesday, common year starting on Tuesday of the Gregorian calendar, the 1957th year of the Common Era (CE) and ''Anno Domini'' (AD) designations, the 957th year of the 2nd millennium, the 57th year of the 20th century, and the 8th year of the 1950s decade. Events January * January 1 – The Saarland joins West Germany. * January 3 – Hamilton Watch Company introduces the first electric watch. * January 5 – South African player Russell Endean becomes the first batsman to be Dismissal (cricket), dismissed for having ''handled the ball'', in Test cricket. * January 9 – British Prime Minister Anthony Eden resigns. * January 10 – Harold Macmillan becomes Prime Minister of the United Kingdom. * January 11 – The African Convention is founded in Dakar. * January 14 – Kripalu Maharaj is named fifth Jagadguru (world teacher), after giving seven days of speeches before 500 Hindu scholars. * January 15 – The film ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Satellite Tornado
A satellite tornado is a tornado that revolves around a larger, primary tornado and interacts with the same mesocyclone. Satellite tornadoes occur apart from the primary tornado and are not considered subvortices; the primary tornado and satellite tornadoes are considered to be separate tornadoes. The cause of satellite tornadoes is not known. Such tornadoes are more often anticyclonic than are typical tornadoes and these pairs may be referred to as tornado couplets. Satellite tornadoes commonly occur in association with very powerful, large, and destructive tornadoes, indicative also of the strength and severity of the parent supercell thunderstorm. Satellite tornadoes are relatively uncommon. When a satellite tornado does occur, there is often more than one orbiting satellite spawned during the life cycle of the tornado or with successive primary tornadoes spawned by the parent supercell (a process known as cyclic tornadogenesis and leading to a tornado family). On tornado outb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tornado Family
A tornado family is a series of tornadoes spawned by the same supercell thunderstorm. These families form a line of successive or parallel tornado paths and can cover a short span or a vast distance. Tornado families are sometimes mistaken as a single continuous tornado, especially prior to the 1970s. Sometimes the tornado tracks can overlap and expert analysis is necessary to determine whether or not damage was created by a family or a single tornado. In some cases, such as the March 1990 Central US tornado outbreak, Hesston-Goessel, Kansas tornadoes of March 1990, different tornadoes of a tornado family merge, making discerning whether an event was continuous or not more difficult. Some tornado damage remains a mystery even today due to a lack of evidence. The Tri-State Tornado of March 1925 was one such event. It could either have been the longest single tornado recorded or a family of tornadoes. A thorough re-analyses project found that it was probably one continuous tornado for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
