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Tornado Outbreak Of May 4–6, 2007
From May 4–6, 2007, a major and damaging tornado outbreak significantly affected portions of the Central United States, with several strong to violent long-track tornadoes occurring across much of the impacted regions. The Storm Prediction Center (SPC) issued a moderate risk of severe thunderstorms for May 4 over portions of Central Nebraska, Western Kansas, Western Oklahoma, Eastern Colorado and portions of the Texas Panhandle. The most destructive tornado in the outbreak occurred on the evening of May 4 in western Kansas, where about 95% of the city of Greensburg in Kiowa County was destroyed by an EF5 tornado, the first of the new Enhanced Fujita Scale and such intensity since the 1999 Bridge Creek–Moore tornado. The supercell killed 13 people, including 11 in Greensburg and two from separate tornadoes. At least 63 people were injured in Greensburg alone. It was the strongest tornado of an outbreak which included several other tornadoes reported across Oklahoma, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Supercell
A supercell is a thunderstorm characterized by the presence of a mesocyclone, a deep, persistently rotating updraft. Due to this, these storms are sometimes referred to as rotating thunderstorms. Of the four classifications of thunderstorms (supercell, squall line, multi-cell, and single-cell), supercells are the overall least common and have the potential to be the most severe. Supercells are often isolated from other thunderstorms, and can dominate the local weather up to away. They tend to last 2–4 hours. Supercells are often put into three classification types: classic (normal precipitation level), low-precipitation (LP), and high-precipitation (HP). LP supercells are usually found in climates that are more arid, such as the high plains of the United States, and HP supercells are most often found in moist climates. Supercells can occur anywhere in the world under the right pre-existing weather conditions, but they are most common in the Great Plains of the United State ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Weather Service
The National Weather Service (NWS) is an Government agency, agency of the Federal government of the United States, United States federal government that is tasked with providing weather forecasts, warnings of hazardous weather, and other weather-related products to organizations and the public for the purposes of protection, safety, and general information. It is a part of the National Oceanic and Atmospheric Administration (NOAA) branch of the United States Department of Commerce, Department of Commerce, and is headquartered in Silver Spring, Maryland, within the Washington metropolitan area. The agency was known as the United States Weather Bureau from 1891 until it adopted its current name in 1970. The NWS performs its primary task through a collection of national and regional centers, and 122 local List of National Weather Service Weather Forecast Offices, Weather Forecast Offices (WFOs). As the NWS is an agency of the U.S. federal government, most of its products are in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Outbreak Intensity Score
Thomas P. Grazulis (born August 17, 1942) is an American meteorologist who has written extensively about tornadoes and produced documentaries as head of ''The Tornado Project''. Biography Early career Thomas Grazulis grew up in Worcester, Massachusetts and first confronted the power of a tornado at age 11 following the violent 1953 Worcester tornado, an F4 which killed 94 people and passed approximately north of his childhood home. Grazulis earned a bachelor's degree in meteorology from Florida State University (FSU) and was briefly a broadcaster, in part presenting the weather. He was a science teacher in New Jersey and worked on the "Earth Science Curriculum Project" with the National Science Foundation (NSF). He and his wife Doris, also a teacher and a small business operator, then moved to the St. Johnsbury, Vermont area in 1970. In 1972, they released ''Approaching the Unapproachable'', a documentary film on tornadoes that was the first to consider tornadoes in a sc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thomas P
Thomas may refer to: People * List of people with given name Thomas * Thomas (name) * Thomas (surname) * Saint Thomas (other) * Thomas Aquinas (1225–1274) Italian Dominican friar, philosopher, and Doctor of the Church * Thomas the Apostle * Thomas (bishop of the East Angles) (fl. 640s–650s), medieval Bishop of the East Angles * Thomas (Archdeacon of Barnstaple) (fl. 1203), Archdeacon of Barnstaple * Thomas, Count of Perche (1195–1217), Count of Perche * Thomas (bishop of Finland) (1248), first known Bishop of Finland * Thomas, Earl of Mar (1330–1377), 14th-century Earl, Aberdeen, Scotland Geography Places in the United States * Thomas, Idaho * Thomas, Illinois * Thomas, Oklahoma * Thomas, Oregon * Thomas, South Dakota * Thomas, Virginia * Thomas, Washington * Thomas, West Virginia * Thomas County (other) * Thomas Township (other) Elsewhere * Thomas Glacier (Greenland) Arts and entertainment * ''Thomas'' (Burton novel), a 196 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Softball
Softball is a Variations of baseball, variation of baseball, the difference being that it is played with a larger ball, on a smaller field, and with only underhand pitches (where the ball is released while the hand is primarily below the ball) permitted. Softball is played competitively at club levels, the college level, and the #Professional leagues, professional level. The game was created in 1887 in Chicago by George Hancock (softball), George Hancock. There are two rule sets for softball generally: ''slow-pitch softball'' and ''fastpitch softball, fastpitch''. Slow-pitch softball is commonly played recreationally, while women's fastpitch softball was a Summer Olympic Games#List of Olympic sports, Summer Olympic sport and can be Women Professional Fastpitch, played professionally. Softball was not included in the 2024 Summer Olympics but will return for the 2028 Summer Olympics. Depending on the variety being played and the age and gender of the players, the particulars of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North Texas
North Texas is a term used primarily by residents of the Dallas–Fort Worth metroplex to refer to a geographic area of Texas, generally considered to include the area south of Oklahoma, east of Abilene, Texas, Abilene, west of Paris, Texas, Paris, and north of Waco, Texas, Waco. Definitions of the region typically do not include the sparsely populated Texas Panhandle, Panhandle of Texas, which is the northernmost region of Texas bordered by New Mexico to the west and Oklahoma to the north and east. North Texas is centered upon the Dallas–Fort Worth metroplex, the largest metropolitan area in Texas and the Southern United States. People in the Dallas and Fort Worth areas sometimes use the terms ''Metroplex'', ''DFW'', and ''North Texas'' interchangeably. However, North Texas refers to a much larger area that includes many northern rural counties along the Red River of the South border. History Indigenous tribes in North Texas included the Caddo, Tawakoni, Wichita people, Wichi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iowa
Iowa ( ) is a U.S. state, state in the upper Midwestern United States, Midwestern region of the United States. It borders the Mississippi River to the east and the Missouri River and Big Sioux River to the west; Wisconsin to the northeast, Illinois to the east and southeast, Missouri to the south, Nebraska to the west, South Dakota to the northwest, and Minnesota to the north. Iowa is the List of U.S. states and territories by area, 26th largest in total area and the List of U.S. states and territories by population, 31st most populous of the List of states and territories of the United States, 50 U.S. states, with a population of 3.19 million. The state's List of capitals in the United States, capital, List of cities in Iowa, most populous city, and largest List of metropolitan statistical areas, metropolitan area fully located within the state is Des Moines, Iowa, Des Moines. A portion of the larger Omaha–Council Bluffs metropolitan area, Omaha, Nebraska, metropolitan area ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North Dakota
North Dakota ( ) is a U.S. state in the Upper Midwest, named after the indigenous Dakota people, Dakota and Sioux peoples. It is bordered by the Canadian provinces of Saskatchewan and Manitoba to the north and by the U.S. states of Minnesota to the east, South Dakota to the south, and Montana to the west. North Dakota is part of the Great Plains region, characterized by broad prairies, steppe, temperate savanna, badlands, and farmland. North Dakota is the List of U.S. states and territories by area, 19th-largest state by area, but with a population of just under 800,000, the List of U.S. states and territories by population, fourth-least populous and List of U.S. states by population density, fourth-least densely populated. The List of capitals in the United States, state capital is Bismarck, North Dakota, Bismarck and the List of cities in North Dakota, most populous city is Fargo, North Dakota, Fargo, which accounts for nearly a fifth of the state's population; both cities ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of SPC High Risk Days
A high risk severe weather event is the greatest threat level issued by the Storm Prediction Center (SPC) for convective weather events in the United States. On the scale from one to five, a high risk is a level five. A high risk is usually for major tornado outbreaks with numerous strong to violent tornadoes expected, and occasionally derecho A ''derecho'' (, from , 'straight') is a widespread, long-lived, straight-line wind storm that is associated with a fast-moving group of Severe weather#Categories, severe thunderstorms known as a mesoscale convective system. Derechos cause Bea ...s with widespread destructive wind gusts, and these outlooks are typically reserved for the most extreme events. They are generally only issued on the day of the event. However, there have been three occurrences (April 7, 2006, April 14, 2012, and March 15, 2025) of a high risk being issued for Day 2 of the outlook period (with the event occurring the following day). Under the official protocol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South Dakota
South Dakota (; Sioux language, Sioux: , ) is a U.S. state, state in the West North Central states, North Central region of the United States. It is also part of the Great Plains. South Dakota is named after the Dakota people, Dakota Sioux tribe, which comprises a large portion of the population—with nine Indian reservation, reservations in the state—and has historically dominated the territory. South Dakota is the List of U.S. states and territories by area, 17th-largest by area, the List of U.S. states and territories by population, fifth-least populous, and the List of U.S. states and territories by population density, fifth-least densely populated of the List of U.S. states, 50 United States. Pierre, South Dakota, Pierre is the List of capitals in the United States, state capital, and Sioux Falls, South Dakota, Sioux Falls, with a population of about 213,900, is South Dakota's List of cities in South Dakota, most populous city. The state is bisected by the Missouri Ri ... [...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] |
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] |
