Saline County, Illinois
Saline County is a county located in the U. S. state of Illinois. According to the 2010 census, it had a population of 24,913, its county seat is Harrisburg. It is located in the southern portion of Illinois known locally as "Little Egypt". There are three major towns in Saline County connected by U. S. Route 45, by the now abandoned Cairo and Vincennes/Big Four/New York Central Line, from north to south, Eldorado and Carrier Mills. Saline County is the 79th wealthiest county in the state, out of 102. Saline County was formed from Gallatin County in 1847, it is named for the Saline River and the springs which salt was produced from in the early history of Gallatin County. Saline County was named "Moredock County", in honor of John Moredock, known the "Indian slayer". A militia officer and a member of the territorial legislature, Moredock had lost his mother and brother in an Indian attack in 1786, when they were traveling from Pennsylvania to Illinois down the Ohio River. Moredock had been traveling with another group, which arrived on the scene to find Moredock's mother's body horribly mutilated.
He managed to tracked down and kill every member of the band that did it, he thereafter spent much of his life ambushing and killing Native Americans, hostile or not. Controversial because of this, he was a popular figure in early Illinois. Moredock died in 1830; the creation of Saline County itself was controversial. Illinois had a small number of large counties; as more settlers arrived, new counties were formed from the original counties. Gallatin County was formed in 1812, but it soon was divided into fifteen counties, with what remained of Gallatin county becoming what is now Saline County; this persisted for several decades after the era of rapid formation of counties. Old Shawneetown was the original county seat of Gallatin County. At that time Old Shawneetown was the largest city and commercial center of Illinois, it was, located on the eastern edge of the County. In 1826, the county seat was moved to the new village of Equality, near the center of what was Gallatin County. Old Shawneetown opposed this move, sought redress by splitting off Saline County, with the aim of moving the County seat of what remained back to Old Shawneetown.
Thus the impetus for the formation of Saline County came not from settlers at the fringe of the county, but from the core of the original county. Saline County was created by a voice vote in the General Assembly in 1847. Completion of the formation of the county, involved three acts of the General Assembly, four decisions of the Illinois Supreme Court and two referendums; the controversy came to involve the leading attorneys of Illinois, including Abraham Lincoln. According to the U. S. Census Bureau, the county has a total area of 387 square miles, of which 380 square miles is land and 7.0 square miles is water. The Saline County area is rolling hills throughout rising to the Hills of the Shawnee National Forest; the Saline River flows through the central point of the county in three forks: North and South. To the north of Eldorado there are flat lowlands. In recent years, average temperatures in the county seat of Harrisburg have ranged from a low of 22 °F in January to a high of 89 °F in July, although a record low of −23 °F was recorded in February 1951 and a record high of 113 °F was recorded in July 1936.
Average monthly precipitation ranged from 3.04 inches in September to 4.98 inches in May. Shawnee National Forest Sahara Woods State Fish and Wildlife Area Saline County State Fish and Wildlife Area U. S. Highway 45 Illinois Route 13 Illinois Route 34 Illinois Route 142 Illinois Route 145 Public transportation is provided by the Rides Mass Transit District and Harrisburg Taxi; as of the 2010 United States Census, there were 24,913 people, 10,379 households, 6,631 families residing in the county. The population density was 65.6 inhabitants per square mile. There were 11,697 housing units at an average density of 30.8 per square mile. The racial makeup of the county was 93.0% white, 4.0% black or African American, 0.4% Asian, 0.4% American Indian, 0.1% Pacific islander, 0.4% from other races, 1.8% from two or more races. Those of Hispanic or Latino origin made up 1.4% of the population. In terms of ancestry, 17.8% were Irish, 16.6% were German, 12.9% were American, 11.1% were English. Of the 10,379 households, 29.0% had children under the age of 18 living with them, 47.4% were married couples living together, 11.7% had a female householder with no husband present, 36.1% were non-families, 31.9% of all households were made up of individuals.
The average household size was 2.32 and the average family size was 2.89. The median age was 41.7 years. The median income for a household in the county was $35,644 and the median income for a family was $46,314. Males had a median income of $41,108 versus $28,464 for females; the per capita income for the county was $20,903. About 13.4% of families and 18.4% of the population were below the poverty line, including 26.5% of those under age 18 and 10.4% of those age 65 or over. Coal mining makes up the largest percentage of industrial employment in Saline County; the county is home to the Galatia Mine, which by industry standards is the largest underground coal mine in Illinois and employs close to 500 workers. The mining and exploration industry feeds other sources of employment such as coal and materials hauling and excavation. Construction fields and services benefit from Saline County's mining industry. Other employment in the county is made up by the medical and state services. Harrisburg is home to the Ha
Jefferson County, Illinois
Jefferson County is a county located in the southern part of the U. S. state of Illinois. According to the 2010 census, it has a population of 38,827; the county seat is Mount Vernon. Jefferson County comprises IL Micropolitan Statistical Area, it is located in the southern portion known locally as "Little Egypt". The western border of the county adjoins the Greater St. Louis consolidated metropolitan statistical area, the Metro-East region, the St. Louis commuter region and market and viewing area; the first settler in Jefferson County is believed to have been Andrew Moore. In 1810, he settled near the southeast corner of the county, near where the Goshen Road emerges from the forest of Hamilton County into what is now known as Moore's Prairie. Moore arrived near Edwardsville, his migration was therefore retrograde, from the west toward the interior of the State. In 1814, Andrew Moore departed with his eight-year-old son for Jordan's settlement, a journey from which he never returned. A skull, believed to have been Moore's was found several years about two miles from his cabin.
Jordan's Settlement called Jordan's Fort, was southeast of modern Thompsonville, about twenty miles south of Moore's cabin. This episode occurred during the War of 1812 when many of the Indian tribes were allied with the British. In 1816, Carter Wilkey, Daniel Crenshaw and Robert Cook settled in Moore's Prairie. Daniel Crenshaw moved into Moore's cabin; this settlement is believed to be the first permanent settlement in the County. Jefferson County was organized in 1819, out of parts of White and Franklin Counties, it was named in honor of Thomas Jefferson, principal draftsman of the Northwest Ordinance, among other things. The baseline along the northern border of the County crosses the Third Principal Meridian at the northwest corner of the County. According to the U. S. Census Bureau, the county has a total area of 584 square miles, of which 571 square miles is land and 13 square miles is water. In recent years, average temperatures in the county seat of Mount Vernon have ranged from a low of 19 °F in January to a high of 88 °F in July, although a record low of −21 °F was recorded in January 1994 and a record high of 114 °F was recorded in July 1936.
Average monthly precipitation ranged from 2.45 inches in January to 4.58 inches in May. Interstate 57 Interstate 64 U. S. Highway 51 Illinois Route 15 Illinois Route 37 Illinois Route 142 Illinois Route 148 Marion County - north Wayne County - northeast Hamilton County - southeast Franklin County - south Perry County - southwest Washington County - west As of the 2010 United States Census, there were 38,827 people, 15,365 households, 10,140 families residing in the county; the population density was 68.0 inhabitants per square mile. There were 16,954 housing units at an average density of 29.7 per square mile. The racial makeup of the county was 88.4% white, 8.4% black or African American, 0.6% Asian, 0.2% American Indian, 0.8% from other races, 1.6% from two or more races. Those of Hispanic or Latino origin made up 2.1% of the population. In terms of ancestry, 24.3% were German, 15.8% were Irish, 13.6% were English, 10.2% were American. Of the 15,365 households, 30.1% had children under the age of 18 living with them, 50.0% were married couples living together, 11.4% had a female householder with no husband present, 34.0% were non-families, 29.1% of all households were made up of individuals.
The average household size was 2.38 and the average family size was 2.92. The median age was 40.6 years. The median income for a household in the county was $41,161 and the median income for a family was $51,262. Males had a median income of $41,193 versus $29,645 for females; the per capita income for the county was $21,370. About 12.4% of families and 17.1% of the population were below the poverty line, including 24.8% of those under age 18 and 10.7% of those age 65 or over. In 2015 the county police department announced that the words "In God We Trust" will be on police squad cars. Travis Allen is the current Sheriff of Jefferson County. Jefferson is politically a typical “anti-Yankee” Southern Illinois county. Opposition to the “Yankee” Republican Party and that party’s Civil War meant that Jefferson County voted solidly Democratic until Theodore Roosevelt carried the county in his 1904 landslide, it was to again vote Republican in the greater landslides of 1920 and 1928, but otherwise was Democratic until World War II.
Following the New Deal, Jasper became something of a bellwether county, voting for every winning Presidential candidate between 1928 and 2004 except in the Catholicism-influenced 1960 election, that of 1988, influenced by a major Midwestern drought. Disagreement with the Democratic Party’s liberal views on social issues since the 1990s has caused a powerful swing to the GOP in the past quarter-century: as is typical of the Upland South, Barack Obama in 2012 and Hillary Clinton did far worse than any previous Democrat. Mount Vernon Nason Opdyke Jefferson County is divided into sixteen townships: National Register of Historic Places listings in Jefferson County, Illinois
1910 United States Census
The Thirteenth United States Census, conducted by the Census Bureau on April 15, 1910, determined the resident population of the United States to be 92,228,496, an increase of 21.0 percent over the 76,212,168 persons enumerated during the 1900 Census. The 1910 Census switched from a portrait page orientation to a landscape orientation; the 1910 census collected the following information: Full documentation for the 1910 census, including census forms and enumerator instructions, is available from the Integrated Public Use Microdata Series. The column titles in the census form are as follows: LOCATION. Street, road, etc. House number. 1. Number of dwelling house in order of visitation. 2. Number of family in order of visitation. 3. NAME of each person whose place of abode on April 15, 1910, was in this family. Enter surname first the given name and middle initial, if any. Include every person living on April 15, 1910. Omit children born since April 15, 1910. RELATION. 4. Relationship of this person to the head of the family.
PERSONAL DESCRIPTION. 5. Sex. 6. Color or race. 7. Age at last birthday. 8. Whether single, widowed, or divorced. 9. Number of years of present marriage. 10. Mother of how many children: Number born. 11. Mother of how many children: Number now living. NATIVITY. Place of birth of each person and parents of each person enumerated. If born in the United States, give the state or territory. If of foreign birth, give the country. 12. Place of birth of this Person. 13. Place of birth of Father of this person. 14. Place of birth of Mother of this person. CITIZENSHIP. 15. Year of immigration to the United States. 16. Whether naturalized or alien. 17. Whether able to speak English. OCCUPATION. 18. Trade or profession of, or particular kind of work done by this person, as spinner, laborer, etc. 19. General nature of industry, business, or establishment in which this person works, as cotton mill, dry goods store, etc. 20. Whether as employer, employee, or work on own account. If an employee— 21. Whether out of work on April 15, 1910.
22. Number of weeks out of work during year 1909. EDUCATION. 23. Whether able to read. 24. Whether able to write. 25. Attended school any time since September 1, 1909. OWNERSHIP OF HOME. 26. Owned or rented. 27. Owned free or mortgaged. 28. Farm or house. 29. Number of farm schedule. 30. Whether a survivor of the Union or Confederate Army or Navy. 31. Whether blind. 32. Whether deaf and dumb. Special Notation In 1912 and 1959, New Mexico, Arizona and Hawaii would become the 47th, 48th, 49th and 50th states admitted to the Union; the 1910 population count for each of these areas was 327,301, 204,354, 64,356 and 191,909 respectively. On this basis, the ranking list above would be modified as follows: First 42 ranked states - positions unchanged New Mexico, Arizona, Hawaii, Wyoming and Alaska; the original census enumeration sheets were microfilmed by the Census Bureau in the 1940s. The microfilmed census is available in rolls from the National Records Administration. Several organizations host images of the microfilmed census online, along which digital indices.
Microdata from the 1910 census are available through the Integrated Public Use Microdata Series. Aggregate data for small areas, together with electronic boundary files, can be downloaded from the National Historical Geographic Information System. 1911 U. S Census Report Contains 1910 Census results Historic US Census data census.gov/population/www/censusdata/PopulationofStatesandCountiesoftheUnitedStates1790-1990.pdf
1890 United States Census
The Eleventh United States Census was taken beginning June 2, 1890. It determined the resident population of the United States to be 62,979,766—an increase of 25.5 percent over the 50,189,209 persons enumerated during the 1880 census. The data was tabulated by machine for the first time; the data reported that the distribution of the population had resulted in the disappearance of the American frontier. Most of the 1890 census materials were destroyed in a 1921 fire and fragments of the US census population schedule exist only for the states of Alabama, Illinois, New Jersey, New York, North Carolina, South Dakota, Texas, the District of Columbia; this was the first census in which a majority of states recorded populations of over one million, as well as the first in which multiple cities – New York as of 1880, Philadelphia – recorded populations of over one million. The census saw Chicago rank as the nation's second-most populous city, a position it would hold until 1990, in which Los Angeles would supplant it.
The 1890 census collected the following information: The 1890 census was the first to be compiled using methods invented by Herman Hollerith and was overseen by Superintendents Robert P. Porter and Carroll D. Wright. Data was entered on a machine readable medium, punched cards, tabulated by machine; the net effect of the many changes from the 1880 census: the larger population, the number of data items to be collected, the Census Bureau headcount, the volume of scheduled publications, the use of Hollerith's electromechanical tabulators, was to reduce the time required to process the census from eight years for the 1880 census to six years for the 1890 census. The total population of 62,947,714, the family, or rough, was announced after only six weeks of processing; the public reaction to this tabulation was disbelief, as it was believed that the "right answer" was at least 75,000,000. The United States census of 1890 showed a total of 248,253 Native Americans living in the United States, down from 400,764 Native Americans identified in the census of 1850.
The 1890 census announced that the frontier region of the United States no longer existed, that the Census Bureau would no longer track the westward migration of the U. S. population. Up to and including the 1880 census, the country had a frontier of settlement. By 1890, isolated bodies of settlement had broken into the unsettled area to the extent that there was hardly a frontier line; this prompted Frederick Jackson Turner to develop his Frontier Thesis. The original data for the 1890 Census is no longer available. All the population schedules were damaged in a fire in the basement of the Commerce Building in Washington, D. C. in 1921. Some 25 % of the materials were presumed another 50 % damaged by smoke and water; the damage to the records led to an outcry for a permanent National Archives. In December 1932, following standard federal record-keeping procedures, the Chief Clerk of the Bureau of the Census sent the Librarian of Congress a list of papers to be destroyed, including the original 1890 census schedules.
The Librarian was asked by the Bureau to identify any records which should be retained for historical purposes, but the Librarian did not accept the census records. Congress authorized destruction of that list of records on February 21, 1933, the surviving original 1890 census records were destroyed by government order by 1934 or 1935; the other censuses for which some information has been lost are the 1810 enumerations. Few sets of microdata from the 1890 census survive, but aggregate data for small areas, together with compatible cartographic boundary files, can be downloaded from the National Historical Geographic Information System. Mayo-Smith, Richmond, "The Eleventh Census of the United States". In: The Economic Journal, Vol. 1, p. 43 - 58 1891 U. S Census Report Contains 1890 Census results Historical US Census data from the U. S. Census Bureau website Hollerith 1890 Census Tabulator by Columbia University "The Fate of the 1890 Population Census" from the National Archives website
A county seat is an administrative center, seat of government, or capital city of a county or civil parish. The term is used in Canada, Romania and the United States. County towns have a similar function in the United Kingdom and Republic of Ireland, in Jamaica. In most of the United States, counties are the political subdivisions of a state; the city, town, or populated place that houses county government is known as the seat of its respective county. The county legislature, county courthouse, sheriff's department headquarters, hall of records and correctional facility are located in the county seat though some functions may be located or conducted in other parts of the county if it is geographically large. A county seat is but not always, an incorporated municipality; the exceptions include the county seats of counties that have no incorporated municipalities within their borders, such as Arlington County, Virginia. Ellicott City, the county seat of Howard County, is the largest unincorporated county seat in the United States, followed by Towson, the county seat of Baltimore County, Maryland.
Some county seats may not be incorporated in their own right, but are located within incorporated municipalities. For example, Cape May Court House, New Jersey, though unincorporated, is a section of Middle Township, an incorporated municipality. In some of the colonial states, county seats include or included "Court House" as part of their name. In the Canadian provinces of Prince Edward Island, New Brunswick, Nova Scotia, the term "shire town" is used in place of county seat. County seats in Taiwan are the administrative centers of the counties. There are 13 county seats in Taiwan, which are in the forms of county-administered city, urban township or rural township. Most counties have only one county seat. However, some counties in Alabama, Georgia, Kentucky, Mississippi, New Hampshire, New York, Vermont have two or more county seats located on opposite sides of the county. An example is Harrison County, which lists both Biloxi and Gulfport as county seats; the practice of multiple county seat towns dates from the days.
There have been few efforts to eliminate the two-seat arrangement, since a county seat is a source of pride for the towns involved. There are 36 counties with multiple county seats in 11 states: Coffee County, Alabama St. Clair County, Alabama Arkansas County, Arkansas Carroll County, Arkansas Clay County, Arkansas Craighead County, Arkansas Franklin County, Arkansas Logan County, Arkansas Mississippi County, Arkansas Prairie County, Arkansas Sebastian County, Arkansas Yell County, Arkansas Columbia County, Georgia Lee County, Iowa Campbell County, Kentucky Kenton County, Kentucky Essex County, Massachusetts Middlesex County, Massachusetts Plymouth County, Massachusetts Bolivar County, Mississippi Carroll County, Mississippi Chickasaw County, Mississippi Harrison County, Mississippi Hinds County, Mississippi Jasper County, Mississippi Jones County, Mississippi Panola County, Mississippi Tallahatchie County, Mississippi Yalobusha County, Mississippi Jackson County, Missouri Hillsborough County, New Hampshire Seneca County, New York Bennington County, Vermont In New England, the town, not the county, is the primary division of local government.
Counties in this region have served as dividing lines for the states' judicial systems. Connecticut and Rhode Island have no county level of thus no county seats. In Vermont and Maine the county seats are designated shire towns. County government consists only of a Superior Court and Sheriff, both located in the respective shire town. Bennington County has two shire towns. In Massachusetts, most government functions which would otherwise be performed by county governments in other states are performed by town or city governments; as such, Massachusetts has dissolved many of its county governments, the state government now operates the registries of deeds and sheriff's offices in those counties. In Virginia, a county seat may be an independent city surrounded by, but not part of, the county of which it is the administrative center. Two counties in South Dakota have their county seat and government services centered in a neighboring county, their county-level services are provided by Fall River Tripp County, respectively.
In Louisiana, divided into parishes rather than counties, county seats are referred to as parish seats. Alaska is divided into boroughs rather than counties; the Unorganized Borough, which covers 49 % of Alaska's area, has equivalent. The state with the most counties is Texas, with 254, the state with the fewest counties is Delaware, with 3. County seat war Administrative center County town, administrative centres in Ireland and the UK Chef-lieu, administrative centres in Algeria, Luxembourg, France and Tunisia Municipality, equivalent to county in many c
Southern Illinois is the southern third of the state of Illinois. The southern part of Illinois has a unique regional history. Part of downstate Illinois, the Southern Illinois region is bordered by the two most voluminous rivers in the United States: the Mississippi River and its connecting Missouri River to the west, the Ohio River to the east and south with the Wabash as tributary. Southern Illinois' most populated city is Belleville at 44,478. Other principal cities include Alton, Collinsville, Effingham, O'Fallon, Herrin, Mt. Vernon and Carbondale, where the main campus of Southern Illinois University is located. Residents may travel to amenities in St. Louis and Cape Girardeau, Missouri; the region is home to a major military installation. The area has a population of 1.2 million people, who live in rural towns and cities separated by extensive farmland and the Shawnee National Forest. The two higher density areas of population are Metro-East, the industrialized Illinois portion of the St. Louis Metropolitan Area, the Carbondale-Marion-Herrin, Illinois Combined Statistical Area, centered on Carbondale and Marion, a two-county area, home to 123,272 residents.
The first European settlers were French colonists in the part of their North American empire called Illinois Country. Settlers migrated from the Upland South of the United States, traveling by the Ohio River; the region was affiliated with the southern agricultural economy, based on enslaved African Americans as workers on major plantations, rural culture. Some settlers owned slaves before the territory was organized and slavery was prohibited. Many areas developed an economy based on coal mining. Except for the counties in the St. Louis MSA, much of Southern Illinois is still culturally affiliated with the Mid-South: Western Kentucky, Southwestern Indiana, West Tennessee, the Missouri Bootheel; the people speak with similar accents throughout this area. Southern Illinois, the earliest settled and once the wealthiest part of Illinois, is known for its rich history and the abundance of antebellum architecture remaining in its small towns and cities; the earliest inhabitants of Illinois are thought to have arrived about 12,000 BC.
They were indigenous hunter-gatherers, but they developed a primitive system of agriculture. After AD 1000, the production of agricultural surpluses resulted in the development of complex, hierarchical societies. With the rise of the Mississippian culture in the Mississippi and Ohio River valleys, tribal leaders organized thousands of workers to build complex urban areas featuring numerous large earthworks – pyramidal and conical mounds used for religious and ceremonial purposes. Cahokia, located within the boundaries of present-day Collinsville, was the major regional center of this culture, it contains the largest prehistoric earthworks in the Americas, has been designated as a UNESCO World Heritage Site. The mound builders' culture seems to have collapsed between AD 1400–1500; the Mississippians had abandoned Cahokia long. The Illinois tribes, for whom the state is named, other historic tribes migrated to Southern Illinois around AD 1500. Archeologists say, they had migrated from eastern areas, where Algonquian-language tribes emerged along the Atlantic Coast and waterways.
The Illini left numerous artifacts, including burial sites, burned-out campfires along the bases of bluffs, flint implements, weapons. Structures built by them include stone forts or "pounds". Visitors can see a stone fort in Giant City State Park near Makanda. At least eight other such structures are known in the region. In about 1673, French explorers from Quebec became the first Europeans to reach Illinois; the French named the area Illinois after the Indians. The French explored the Mississippi River, establishing outposts and seeking a route to the Pacific Ocean and the Far East; as increasing Indian unrest and warfare began in Northern Illinois over the lucrative fur trade along the Great Lakes, the French concentrated on building outposts in Southern Illinois. The earliest European settlers were concentrated along the Mississippi and Wabash rivers, which provided easy routes for travel and trade; the settlements including Cahokia town and Chartres became important market villages and supply depots between Canada and the French ports on the lower Mississippi River.
Other important early outposts in Southern Illinois were at Old Shawneetown and Fort Massac on the Ohio River. After defeating the French in the French and Indian War and signing the Treaty of Paris in 1763, the English ruled the Great Lakes region. At the time, many French settlers moved from towns on the eastern side of the Mississippi to the western side, ruled by Spain after the war, it took over all the Louisiana Territory west of the river. During the American Revolutionary War, the Southern Illinois area was the scene of the best known campaign in what was the American west, when Virginians sought to occupy it against the British. European-American settlers were slow to arrive in Illinois after the United States victory in the American Revolutionary War. By 1800, fewer than 2,000 European Americans lived in Illinois. Soon more settlers came from the backwoods areas of Kentucky, Virginia and the Carolinas; these early settlers w
A tornado is a rotating column of air, in contact with both the surface of the Earth and a cumulonimbus cloud or, in rare cases, the base of a cumulus cloud. The windstorm is referred to as a twister, whirlwind or cyclone, although the word cyclone is used in meteorology to name a weather system with a low-pressure area in the center around which winds blow counterclockwise in the Northern Hemisphere and clockwise in the Southern. Tornadoes come in many shapes and sizes, they are visible in the form of a condensation funnel originating from the base of a cumulonimbus cloud, with a cloud of rotating debris and dust beneath it. Most tornadoes have wind speeds less than 110 miles per hour, are about 250 feet across, travel a few miles before dissipating; the most extreme tornadoes can attain wind speeds of more than 300 miles per hour, are more than two miles in diameter, stay on the ground for dozens of miles. Various types of tornadoes include the multiple vortex tornado and waterspout. Waterspouts are characterized by a spiraling funnel-shaped wind current, connecting to a large cumulus or cumulonimbus cloud.
They are classified as non-supercellular tornadoes that develop over bodies of water, but there is disagreement over whether to classify them as true tornadoes. These spiraling columns of air develop in tropical areas close to the equator and are less common at high latitudes. Other tornado-like phenomena that exist in nature include the gustnado, dust devil, fire whirl, steam devil. Tornadoes occur most in North America in central and southeastern regions of the United States colloquially known as tornado alley, as well as in Southern Africa and southeast Europe and southeastern Australia, New Zealand and adjacent eastern India, southeastern South America. Tornadoes can be detected before or as they occur through the use of Pulse-Doppler radar by recognizing patterns in velocity and reflectivity data, such as hook echoes or debris balls, as well as through the efforts of storm spotters. There are several scales for rating the strength of tornadoes; the Fujita scale rates tornadoes by damage caused and has been replaced in some countries by the updated Enhanced Fujita Scale.
An F0 or EF0 tornado, the weakest category, damages trees, but not substantial structures. An F5 or EF5 tornado, the strongest category, rips buildings off their foundations and can deform large skyscrapers; the similar TORRO scale ranges from a T0 for weak tornadoes to T11 for the most powerful known tornadoes. Doppler radar data and ground swirl patterns may be analyzed to determine intensity and assign a rating; the word tornado comes from the Spanish word tornado. Tornadoes opposite phenomena are the derechoes. A tornado is commonly referred to as a "twister", is sometimes referred to by the old-fashioned colloquial term cyclone; the term "cyclone" is used as a synonym for "tornado" in the often-aired 1939 film The Wizard of Oz. The term "twister" is used in that film, along with being the title of the 1996 tornado-related film Twister. A tornado is "a violently rotating column of air, in contact with the ground, either pendant from a cumuliform cloud or underneath a cumuliform cloud, visible as a funnel cloud".
For a vortex to be classified as a tornado, it must be in contact with both the ground and the cloud base. Scientists have not yet created a complete definition of the word. Tornado refers to the vortex of wind, not the condensation cloud. A tornado is not visible; this results in the formation of a visible funnel condensation funnel. There is some disagreement over the definition of a condensation funnel. According to the Glossary of Meteorology, a funnel cloud is any rotating cloud pendant from a cumulus or cumulonimbus, thus most tornadoes are included under this definition. Among many meteorologists, the'funnel cloud' term is defined as a rotating cloud, not associated with strong winds at the surface, condensation funnel is a broad term for any rotating cloud below a cumuliform cloud. Tornadoes begin as funnel clouds with no associated strong winds at the surface, not all funnel clouds evolve into tornadoes. Most tornadoes produce strong winds at the surface while the visible funnel is still above the ground, so it is difficult to discern the difference between a funnel cloud and a tornado from a distance.
A single storm will produce more than one tornado, either or in succession. Multiple tornadoes produced by the same storm cell are referred to as a "tornado family". Several tornadoes are sometimes spawned from the same large-scale storm system. If there is no break in activity, this is considered a tornado outbreak. A period of several successive days with tornado outbreaks in the same general area is a tornado outbreak sequence called an extended tornado outbreak. Most tornadoes take on the appearance of a narrow funnel, a few hundred yards across, with a small cloud of debris near the ground. Tornadoes may