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Tornadoes Of 1973
This page documents notable tornadoes and tornado outbreaks worldwide in 1973, but mostly features events in the United States. According to tornado researcher Thomas P. Grazulis, documentation of tornadoes outside the United States was historically less exhaustive, owing to the lack of monitors in many nations and, in some cases, to internal political controls on public information. Most countries only recorded tornadoes that produced severe damage or loss of life. Consequently, available documentation in 1973 mainly covered the United States. On average, most recorded tornadoes, including the vast majority of significant—F2 or stronger—tornadoes, form in the U.S., although as many as 500 may take place internationally. Some locations, like Bangladesh, are as prone to violent tornadoes as the U.S., meaning F4 or greater events on the Fujita scale. Historically, the number of tornadoes globally and in the United States was and is likely underrepresented: research by Grazulis o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Justo, Santa Fe
San Justo is a city in the center region of the province of Santa Fe, Argentina, 99 km north from the provincial capital. It had about 22,000 inhabitants at the and it is the head town of the San Justo Department. Founded in 1868 by Mariano Cabal, San Justo attained the status of a ''comuna'' (commune) on 13 July 1887 and the following year the Ferrocarril Provincial de Santa Fe Province of Santa Fe Railway (in Spanish: Ferrocarril Provincial de Santa Fe and in French: "Compagnie Française de Chemins de Fer dans la Province de Santa Fe") was a French-owned company that purchased a railway network built by the provincia ... arrived on 1 September 1888. It became a city on 17 September 1959. On January 10, 1973, the city was struck by a destructive tornado. References * * Populated places in Santa Fe Province {{SantaFeAR-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NEXRAD
NEXRAD or Nexrad (Next-Generation Radar) is a network of 160 high-resolution S-band Doppler weather radars operated by the National Weather Service (NWS), an agency of the National Oceanic and Atmospheric Administration (NOAA) within the United States Department of Commerce, the Federal Aviation Administration (FAA) within the Department of Transportation, and the U.S. Air Force within the Department of Defense. Its technical name is WSR-88D (''Weather Surveillance Radar, 1988, Doppler''). NEXRAD detects precipitation and atmospheric movement or wind. It returns data which when processed can be displayed in a mosaic map which shows patterns of precipitation and its movement. The radar system operates in two basic modes, selectable by the operator – a slow-scanning ''clear-air mode'' for analyzing air movements when there is little or no activity in the area, and a ''precipitation mode'', with a faster scan for tracking active weather. NEXRAD has an increased emphasis on autom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of United States Tornadoes In March 1973
This is a list of all tornadoes that were confirmed by local offices of the National Weather Service in the United States in Tornadoes of 1973#March, March 1973. By the end of the month, damage totals were up to $57,054,800 (1973 USD). United States yearly total March March 1 event March 3 event March 6 event March 8 event March 9 event March 10 event March 11 event March 13 event March 15 event March 16 event March 17 event March 23 event March 24 event March 28 event March 29 event March 31 event See also * Tornadoes of 1973 * List of United States tornadoes from January to February 1973 References {{reflist Tornadoes of 1973 March 1973 events in the United States 1973 natural disasters in the United States Lists of tornadoes in the United States by time, 1973, 03 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of United States Tornadoes From January To February 1973
This is a list of all tornadoes that were confirmed by local offices of the National Weather Service in the United States from January to February 1973. United States yearly total January January 18 event January 20 event January 21 event January 22 event January 26 event January 28 event January 31 event February February 2 event February 8 event February 9 event February 13 event See also * Tornadoes of 1973 This page documents notable tornadoes and tornado outbreaks worldwide in 1973, but mostly features events in the United States. According to tornado researcher Thomas P. Grazulis, documentation of tornadoes outside the United States was historica ... References {{reflist Tornadoes of 1973 1973, 01 January 1973 events in the United States February 1973 events in the United States ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Oceanic And Atmospheric Administration
The National Oceanic and Atmospheric Administration (abbreviated as NOAA ) is an United States scientific and regulatory agency within the United States Department of Commerce that forecasts weather, monitors oceanic and atmospheric conditions, charts the seas, conducts deep sea exploration, and manages fishing and protection of marine mammals and endangered species in the U.S. exclusive economic zone. Purpose and function NOAA's specific roles include: * ''Supplying Environmental Information Products''. NOAA supplies to its customers and partners information pertaining to the state of the oceans and the atmosphere, such as weather warnings and forecasts via the National Weather Service. NOAA's information services extend as well to climate, ecosystems, and commerce. * ''Providing Environmental Stewardship Services''. NOAA is a steward of U.S. coastal and marine environments. In coordination with federal, state, local, tribal and international authorities, NOAA manages the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tornadogenesis
Tornadogenesis is the process by which a tornado forms. There are many types of tornadoes and these vary in methods of formation. Despite ongoing scientific study and high-profile research projects such as VORTEX, tornadogenesis is a volatile process and the intricacies of many of the mechanisms of tornado formation are still poorly understood. A tornado is a violently rotating column of air in contact with the surface and a cumuliform cloud base. Tornado formation is caused by the stretching and aggregating/merging of environmental and/or storm-induced vorticity that tightens it into an intense vortex. There are various ways this may come about and thus various forms and sub-forms of tornadoes. Although each tornado is unique, most kinds of tornadoes go through a life cycle of formation, maturation, and dissipation. The process by which a tornado dissipates or decays, occasionally conjured as tornadolysis, is of particular interest for study as is tornadogenesis, longevity, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Union City, Oklahoma
Union City is a town in Canadian County, Oklahoma, United States. The population was 1,645 at the 2010 census, a 19.6 percent increase from 1,375 in 2000. It is part of the Oklahoma City metropolitan statistical area. History In 1889, a post office opened for the community of Union. A townsite plat was filed during the following year. Union City began in 1890 with the arrival of the Chicago, Kansas and Nebraska Railway (acquired by the Chicago, Rock Island and Pacific Railroad in 1891). The local economy was based on agriculture, and within four years the town had three grain elevators and a farm machinery dealership.Savage, Cynthia"Union City,"''Encyclopedia of Oklahoma History and Culture'', Oklahoma Historical Society. Accessed April 18, 2015. 1973 tornado On May 24, 1973, a tornado rated F4 struck the Union City area and was the first tornado widely documented by science as part of storm chasing field research. NSSL out of Norman, Oklahoma placed numerous storm chasers ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Storm Chasing
Storm chasing is broadly defined as the deliberate pursuit of any severe weather phenomenon, regardless of motive, but most commonly for curiosity, adventure, scientific investigation, or for news or media coverage. A person who chases storms is known as a storm chaser or simply a chaser. While witnessing a tornado is the single biggest objective for most chasers, many chase thunderstorms and delight in viewing cumulonimbus and related cloud structures, watching a barrage of hail and lightning, and seeing what skyscapes unfold. A smaller number of storm chasers attempt to intercept tropical cyclones and waterspouts. Nature of and motivations for chasing Storm chasing is chiefly a recreational endeavor, with chasers usually giving their motives as photographing or video recording a storm, or for various personal reasons. These can include the beauty of the views afforded by the sky and land, the mystery of not knowing precisely what will unfold, the journey to an undetermined ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tornado Vortex Signature
A tornadic vortex signature, abbreviated TVS, is a Pulse-Doppler radar weather radar detected rotation algorithm that indicates the likely presence of a strong mesocyclone that is in some stage of tornadogenesis. It may give meteorologists the ability to pinpoint and track the location of tornadic rotation within a larger storm, but it is not an important feature in the National Weather Service's warning operations. The tornadic vortex signature was first identified by Donald W. Burgess, Leslie R. Lemon, and Rodger A. Brown in the 1970s using experimental Doppler radar at the National Severe Storms Laboratory (NSSL) in Norman, Oklahoma. The National Weather Service (NWS) now uses an updated algorithm developed by NSSL, the ''tornado detection algorithm'' (TDA) based on data from its WSR-88D system of radars. NSSL also developed the ''mesocyclone detection algorithm'' (MDA). Display The conditions causing a TVS are often visible on the Doppler weather radar storm relative velocity ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Severe Storms Laboratory
The National Severe Storms Laboratory (NSSL) is a National Oceanic and Atmospheric Administration (NOAA) weather research laboratory under the Office of Oceanic and Atmospheric Research. It is one of seven NOAA Research Laboratories (RLs). NSSL studies weather radar, tornadoes, flash floods, lightning, damaging winds, hail, and winter weather out of Norman, Oklahoma, using various techniques and tools in their HWT, or Hazardous Weather Testbed. NSSL meteorologists developed the first doppler radar for the purpose of meteorological observation, and contributed to the development of the NEXRAD (WSR-88D). NSSL has a partnership with the Cooperative Institute for Severe and High-Impact Weather Research and Operations (CIWRO) at the University of Oklahoma that enables collaboration and participation by students and visiting scientists in performing research. The Lab also works closely with the Storm Prediction Center (SPC) and thNational Weather Service Norman Forecast Office which a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Weather Radar
Weather radar, also called weather surveillance radar (WSR) and Doppler weather radar, is a type of radar used to locate precipitation, calculate its motion, and estimate its type (rain, snow, hail etc.). Modern weather radars are mostly pulse-Doppler radars, capable of detecting the motion of rain droplets in addition to the intensity of the precipitation. Both types of data can be analyzed to determine the structure of storms and their potential to cause severe weather. During World War II, radar operators discovered that weather was causing echoes on their screen, masking potential enemy targets. Techniques were developed to filter them, but scientists began to study the phenomenon. Soon after the war, surplus radars were used to detect precipitation. Since then, weather radar has evolved on its own and is now used by national weather services, research departments in universities, and in television stations' weather departments. Raw images are routinely used and speciali ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oklahoma
Oklahoma (; Choctaw language, Choctaw: ; chr, ᎣᎧᎳᎰᎹ, ''Okalahoma'' ) is a U.S. state, state in the South Central United States, South Central region of the United States, bordered by Texas on the south and west, Kansas on the north, Missouri on the northeast, Arkansas on the east, New Mexico on the west, and Colorado on the northwest. Partially in the western extreme of the Upland South, it is the List of U.S. states and territories by area, 20th-most extensive and the List of U.S. states and territories by population, 28th-most populous of the 50 United States. Its residents are known as Oklahomans and its capital and largest city is Oklahoma City. The state's name is derived from the Choctaw language, Choctaw words , 'people' and , which translates as 'red'. Oklahoma is also known informally by its List of U.S. state and territory nicknames, nickname, "Sooners, The Sooner State", in reference to the settlers who staked their claims on land before the official op ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
