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Multiple Vortex Tornado
A multiple-vortex tornado is a tornado A tornado is a violently rotating column of air that is in contact with the surface of Earth and a cumulonimbus cloud or, in rare cases, the base of a cumulus cloud. It is often referred to as a twister, whirlwind or cyclone, although the ... 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. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SD40
SD40 may refer to: * Canon PowerShot SD40, a digital camera * EMD SD40, a diesel-electric locomotive * South Dakota Highway 40 * SD-40 alcohol, ethanol denatured alcohol, denatured by adding denatonium benzoate * School District 40 New Westminster, a British Columbian school district for the city of New Westminster {{Letter-NumberCombDisambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Young (storm Chaser)
Carl Richard Young (May 14, 1968 – May 31, 2013) was an American meteorologist and storm chaser who worked with the TWISTEX research team. He was one of the first storm chasers in the United States to die during a tornado; he was killed during the 2013 El Reno tornado, along side Tim Samaras and Life Young was born in Oakland, California on May 14, 1968. He graduated from Carmel High School and received a bachelor's degree from the University of California, Berkeley in the field of economics. Young also received a master's degree in atmospheric science at the University of Nevada, Reno. He began storm chasing in 2000 following work on Hollywood film sets. At ChaserCon in 2002, Young met Tim Samaras; the pair would go on several storm chases together, seeing a total of over 125 tornadoes. In 2012, Young helped film the documentary series Storm Chasers, which aired on the Discovery Channel. In early 2013, Young promised to Dalia Terleckaite, who was his girlfriend at the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2011 Cullman–Arab Tornado
On the afternoon of April 27, 2011, a large, long-tracked, and violent high-end Enhanced Fujita Scale, EF4 Multiple-vortex tornado, multi-vortex tornado, known by most as the Cullman–Arab tornado, moved across north-central Alabama, in the United States, striking numerous towns along its track, including Cullman, Alabama, Cullman, Fairview, Alabama, Fairview, Arab, Alabama, Arab and Ruth, Alabama, Ruth. The tornado killed 6, injured over 40, and impacted hundreds of structures. It occurred as part of the 2011 Super Outbreak, largest tornado outbreak in modern history, and was the second violent tornado of the outbreak, touching down after the 2011 Philadelphia, Mississippi tornado, Philadelphia, Mississippi tornado. The tornado first touched down in Cullman County, Alabama, Cullman County before entering the city limits of Cullman, Alabama, Cullman, where EF4 damage was recorded to numerous buildings, including a large church in the downtown area. The tornado then left the Cu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1997 Jarrell Tornado
In the afternoon hours of May 27, 1997, a large, slow-moving and exceptionally intense Fujita scale, F5 tornado caused extreme damage across portions of the Jarrell, Texas area. Known most frequently as the Jarrell tornado, it killed 27 residents in the Double Creek Estates, which at the time was a small subdivision located to the northwest of Jarrell, and inflicted approximately in damages (equivalent to $M in ) during its 13-minute, track. It occurred as part of 1997 Central Texas tornado outbreak, a tornado outbreak across central Texas; it was produced by a supercell that had developed from an unstable airmass and favorable meteorological conditions at the time, including very high Convective available potential energy, convective available potential energy (CAPE) values and warm Dew point, dewpoints. Several weaker tornadoes prior to the Jarrell tornado touched down and inflicted damage in nearby areas, particularly in Travis County, Texas, Travis and Williamson County, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tuscaloosa Tornado CCTV
Tuscaloosa ( ) is a city in and the county seat of Tuscaloosa County, Alabama, Tuscaloosa County in west-central Alabama, United States, on the Black Warrior River where the Gulf Coastal Plain, Gulf Coastal and Piedmont (United States), Piedmont plains meet. List of municipalities in Alabama, Alabama's fifth-most populous city, the population was 99,600 at the 2020 United States census, 2020 census, and was estimated to be 111,338 in 2023. It was known as Tuskaloosa until the early 20th century. It is also known as "the Druid City" because of the numerous Quercus nigra, water oaks planted in its downtown streets since the 1840s. Incorporated on December 13, 1819, it was named after Tuskaloosa, the chief of a band of Muskogean languages, Muskogean-speaking people defeated by the forces of Spanish explorer Hernando de Soto (explorer), Hernando de Soto in 1540 in the Mabila, Battle of Mabila, in what is now central Alabama. It served as Alabama's capital city from 1826 to 1846, w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Doppler Radar
A Doppler radar is a specialized radar that uses the Doppler effect to produce velocity data about objects at a distance. It does this by bouncing a microwave signal off a desired target and analyzing how the object's motion has altered the frequency of the returned signal. This variation gives direct and highly accurate measurements of the radial component of a target's velocity relative to the radar. The term applies to radar systems in many domains like aviation, police radar detectors, navigation, meteorology, etc. Concept Doppler effect The Doppler effect (or Doppler shift), named after Austrian physicist Christian Doppler who proposed it in 1842, is the difference between the observed frequency and the emitted frequency of a wave for an observer moving relative to the source of the waves. It is commonly heard when a vehicle sounding a siren approaches, passes and recedes from an observer. The received frequency is higher (compared to the emitted frequency) during ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1999 Bridge Creek–Moore Tornado
The 1999 Bridge Creek–Moore tornado was a large, long-lived, and exceptionally powerful Fujita scale, F5 tornado in which the Tornado records, highest tornado wind speed ever measured with a doppler radar was recorded at by a Doppler on Wheels. Considered the strongest tornado ever recorded to have affected the Oklahoma City metropolitan area, metropolitan area, the tornado devastated southern portions of Oklahoma City, Oklahoma as well as surrounding municipalities to the south and southwest of the city during the early evening hours of Monday, May 3, 1999. The tornado covered during its 85-minute existence, destroying thousands of homes, killing 36 people (plus another five indirectly), and leaving US$1 billion (1999 USD) in damage, ranking it as the fifth-costliest on record not accounting for inflation. Its severity prompted the first-ever use of the tornado emergency statement by the National Weather Service. The tornado first touched down at 6:23 p.m. Centr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2024 Greenfield Tornado
On the afternoon of May 21, 2024, a violent EF4 tornado tracked across southwestern Iowa, United States, devastating the city of Greenfield, Iowa, Greenfield. The tornado, known most commonly as the Greenfield tornado, destroyed many buildings and wind turbines across its path that stretched through Page County, Iowa, Page, Taylor County, Iowa, Taylor, Adams County, Iowa, Adams, and Adair County, Iowa, Adair counties, while also causing more than $31 million in property damage, killing five people and injuring 35 more. The tornado reached peak intensity within Greenfield, where National Weather Service surveyors denoted maximum wind speeds estimated at , or EF4 on the Enhanced Fujita scale. However, estimated winds of were briefly determined from inside the tornado by a Doppler on Wheels portable radar unit, one of only three times that wind speeds exceeding have been determined in a tornado from radar observations. The tornado formed amidst a Tornado outbreak sequence of May ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Enhanced Fujita Scale
The Enhanced Fujita scale (abbreviated EF-Scale) is a scale that rates tornado intensity based on the severity of the damage a tornado causes. It is used in the United States and France, among other countries. The EF scale is also unofficially used in other countries, including China and Brazil. The rating of a tornado is determined by conducting a tornado damage survey. 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 construction quality. An "EF-Unknown" (EFU) category was later added for tornadoes that cannot ... [...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 Oklahoma City metropolitan area, 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 $4 Sundays/Thanksgiving Day; prices are higher outside Oklahoma County, Oklahoma, Oklahoma County and adjacent counties. Ownership The Daily Oklahoman newspaper was founded in 1894 by Samuel W. Small. Small eventually lost the paper and it was owned by a bank who leased the paper to C ... [...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 st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1957 Dallas Multi-vortex 1 Edited
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 ''Throne of Blood'', Akira Kurosawa's reworking of ''Macbeth'', is released in Japan. * January 20 ** Israel withdraws from the Sinai Peninsula (captured from Egypt on October 29, 1956). * January 26 – The Ibirapuera Planetarium (the first in the Southern Hemisphere) is inaugurated in the city of São Paulo, Brazil. F ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
