Southern Great Lakes Derecho Of 1991
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Southern Great Lakes Derecho Of 1991
The Southern Great Lakes Derecho of 1991 is the derecho event that occurred on July 7 and 8, 1991. It lasted 17 hours and raced from South Dakota through southern Michigan before dying out over Western Pennsylvania. South Dakota This derecho started in southeastern South Dakota at around 8 A.M. CDT. Iowa The derecho moved into northern Iowa causing more damage. Thousands of acres of corn and soybean crops were flattened causing $60 million in damage (1991 dollars).The strongest wind gust—103 mph (170 km/h) -- was recorded at Sioux Center, Iowa. A school's roof was blown off in Orange City. A gust of 71 mph was recorded at Mason City airport. There was also major damage inside the city. A woman was killed in McIntosh Woods State Park when a tree fell on her. Wisconsin As this derecho moved into Wisconsin in the early afternoon hours, it died out and a new derecho quickly developed. The derecho quickly gained in size and was once again c ...
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Derecho
A ''derecho'' (, from es, derecho, link=no , 'straight') is a widespread, long-lived, straight-line wind storm that is associated with a fast-moving group of severe thunderstorms known as a mesoscale convective system. Derechos can cause hurricanic and tornadic-force winds, heavy rains, and flash floods. In many cases, convection-induced winds take on a bow echo (backward "C") form of squall line, often forming beneath an area of diverging upper tropospheric winds, and in a region of both rich low-level moisture and warm-air advection. Derechos move rapidly in the direction of movement of their associated storms, similar to an outflow boundary (gust front), except that the wind remains sustained for a greater period of time (often increasing in strength after onset), and may exceed hurricane-force. A derecho-producing convective system may remain active for many hours and, occasionally, over multiple days. A warm-weather phenomenon, derechos occur mostly in summer, especial ...
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Washington County, Wisconsin
Washington County is a county in the U.S. state of Wisconsin. As of the 2020 census, the population was 136,761. Its county seat is West Bend. The county was created from Wisconsin Territory in 1836 and organized in 1845. It was named after President George Washington. Washington County is part of the Milwaukee- Waukesha-West Allis, WI Metropolitan Statistical Area. History Washington County was created on December 7, 1836, by the Wisconsin Territory Legislature, with Port Washington designated as the county seat. It was run administratively from Milwaukee County until 1840, when an Act of Organization allowed the county self-governance, and the county seat was moved to Grafton, then called Hamburg. This solution was not satisfactory, as at that time four cities were vying to become the county seat: Port Washington, Grafton, Cedarburg, and West Bend. At least four inconclusive elections were held between 1848 and 1852, but the results were unusable due to accusations of f ...
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1991 Meteorology
File:1991 Events Collage.png, From left, clockwise: Boris Yeltsin, elected as Russia's first president, waves the new flag of Russia after the 1991 Soviet coup d'état attempt, orchestrated by Soviet hardliners; Mount Pinatubo erupts in the Philippines, making it the second-largest volcanic eruption of the 20th century; MTS Oceanos sinks off the coast of South Africa, but the crew notoriously abandons the vessel before the passengers are rescued; Dissolution of the Soviet Union: The Soviet flag is lowered from the Kremlin for the last time and replaced with the flag of the Russian Federation; The United States and soon-to-be dissolved Soviet Union sign the START I Treaty; A tropical cyclone strikes Bangladesh, killing nearly 140,000 people; Lauda Air Flight 004 crashes after one of its thrust reversers activates during the flight; A United States-led coalition initiates Operation Desert Storm to remove Iraq and Saddam Hussein from Kuwait, 300x300px, thumb rect 0 0 200 200 1991 So ...
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Storm Prediction Center
The Storm Prediction Center (SPC) is a US government agency A government or state agency, sometimes an appointed commission, is a permanent or semi-permanent organization in the machinery of government that is responsible for the oversight and administration of specific functions, such as an administrati ... that is part of the National Centers for Environmental Prediction (NCEP), operating under the control of the National Weather Service (NWS), which in turn is part of the National Oceanic and Atmospheric Administration (NOAA) of the United States Department of Commerce (DoC). Headquartered at the National Weather Center in Norman, Oklahoma, Norman, Oklahoma, the Storm Prediction Center is tasked with forecasting the risk of severe thunderstorms and tornadoes in the contiguous United States. It issues #Convective outlooks, convective outlooks, #Mesoscale discussions, mesoscale discussions, and #Weather watches, watches as a part of this process. Convective outlooks are issu ...
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List Of Derecho Events
The following is a list of derecho events. North America Europe South America Asia See also * Bow echo * Line echo wave pattern * List of deadliest Storm Prediction Center days by outlook risk level * List of microbursts * List of tornadoes and tornado outbreaks * Mesoscale convective system and Mesoscale convective complex * Mesovortex * Severe thunderstorm * Squall line * Straight-line winds * Tornado References External links Derechoes in EuropeLouisville, KYNWS: Derecho photos from June 16, 2009, outbreak NWS: More about the June 16th 2009 Derecho Facts About Derechos - Very Damaging WindstormsNOAA: "About Derechos" web page (with illustrations) by the NOAA-NWS-NCEP Storm Prediction Center {{ClimateUS Derechos, * Derecho A ''derecho'' (, from es, derecho, link=no , 'straight') is a widespread, long-lived, straight-line wind storm that is associated with a fast-moving group of severe thunderstorms known as a mesoscale convective system. De ...
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Pittsburgh
Pittsburgh ( ) is a city in the Commonwealth (U.S. state), Commonwealth of Pennsylvania, United States, and the county seat of Allegheny County, Pennsylvania, Allegheny County. It is the most populous city in both Allegheny County and Western Pennsylvania, the List of municipalities in Pennsylvania#Municipalities, second-most populous city in Pennsylvania behind Philadelphia, and the List of United States cities by population, 68th-largest city in the U.S. with a population of 302,971 as of the 2020 United States census, 2020 census. The city anchors the Pittsburgh metropolitan area of Western Pennsylvania; its population of 2.37 million is the largest in both the Ohio Valley and Appalachia, the Pennsylvania metropolitan areas, second-largest in Pennsylvania, and the List of metropolitan statistical areas, 27th-largest in the U.S. It is the principal city of the greater Pittsburgh–New Castle–Weirton combined statistical area that extends into Ohio and West Virginia. Pitts ...
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Lake Erie
Lake Erie ( "eerie") is the fourth largest lake by surface area of the five Great Lakes in North America and the eleventh-largest globally. It is the southernmost, shallowest, and smallest by volume of the Great Lakes and therefore also has the shortest average water residence time. At its deepest point Lake Erie is deep. Situated on the International Boundary between Canada and the United States, Lake Erie's northern shore is the Canadian province of Ontario, specifically the Ontario Peninsula, with the U.S. states of Michigan, Ohio, Pennsylvania, and New York on its western, southern, and eastern shores. These jurisdictions divide the surface area of the lake with water boundaries. The largest city on the lake is Cleveland, anchoring the third largest U.S. metro area in the Great Lakes region, after Greater Chicago and Metro Detroit. Other major cities along the lake shore include Buffalo, New York; Erie, Pennsylvania; and Toledo, Ohio. Situated below Lake Huron, Erie's p ...
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Stratford, Ontario
Stratford is a city on the Avon River within Perth County in southwestern Ontario, Canada, with a 2016 population of 31,465 in a land area of . Stratford is the seat of Perth County, which was settled by English, Irish, Scottish and German immigrants, in almost equal numbers, starting in the 1820s but primarily in the 1830s and 1840s. Most became farmers; even today, the area around Stratford is known for mixed farming, dairying and hog production. The area was settled in 1832, and the town and river were named after Stratford-upon-Avon, England. Stratford was incorporated as a town in 1859 and as a city in 1886. The first mayor was John Corry Wilson Daly and the current mayor is Dan Mathieson. The swan has become a symbol of the city. Each year twenty-four white swans are released into the Avon River. The town is noted for the Stratford Festival, which performs Shakespearean plays and other genres from May to October. History In 1832, the development of an area called "Li ...
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Ontario
Ontario ( ; ) is one of the thirteen provinces and territories of Canada.Ontario is located in the geographic eastern half of Canada, but it has historically and politically been considered to be part of Central Canada. Located in Central Canada, it is Canada's most populous province, with 38.3 percent of the country's population, and is the second-largest province by total area (after Quebec). Ontario is Canada's fourth-largest jurisdiction in total area when the territories of the Northwest Territories and Nunavut are included. It is home to the nation's capital city, Ottawa, and the nation's most populous city, Toronto, which is Ontario's provincial capital. Ontario is bordered by the province of Manitoba to the west, Hudson Bay and James Bay to the north, and Quebec to the east and northeast, and to the south by the U.S. states of (from west to east) Minnesota, Michigan, Ohio, Pennsylvania, and New York. Almost all of Ontario's border with the United States f ...
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Rochester, Michigan
Rochester is a city in Oakland County in the U.S. state of Michigan. The population was 12,711 at the 2010 census. It is a northern suburb in Metro Detroit located 20 miles north of the city of Detroit. Rochester was the first European settlement in Oakland County when it was founded in 1818. It became part of the Avon Township in 1835 and incorporated as an autonomous city in 1967. It is mostly surrounded by the city of Rochester Hills and also borders Shelby Township to the east. Communities and boroughs The city has the following neighborhoods: *Stony Creek is a neighborhood on the northeast end of the city on the border with Rochester Hills. *The Bluffs is a neighborhood on the southeast corner of the city on the border with Rochester Hills. * Yates is shared with Shelby Charter Township, Macomb County and Rochester Hills. History The first settlers in what would become Rochester, the Graham family, built a log cabin in 1817. The cabin was located on present-day 3rd St. ...
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Marshall, Michigan
Marshall is a U.S. city in Michigan. It is the county seat of Calhoun County. The population was 7,088 at the 2010 census. Marshall is best known for its cross-section of 19th- and early 20th-century architecture. It has been referred to by the keeper of the National Register of Historic Places as a "virtual textbook of 19th-Century American architecture." Its historic center is the Marshall Historic District, one of the nation's largest architecturally significant National Historic Landmark Districts. The Landmark has over 850 buildings, including the world-famous Honolulu House. History The town was founded by Sidney Ketchum (1797-1862) in 1830, a land surveyor who had been born in Clinton County, New York, in conjunction with his brother, George Ketchum (1794-1853). The Ketchum brothers explored central lower Michigan in 1830, and in late 1830 Sidney Ketchum obtained government grants for the land on which most of Marshall now stands. The early settlers named the co ...
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Interstate 69 In Michigan
Interstate 69 (I-69) is a part of the Interstate Highway System that will eventually run from the Mexican border in Texas to the Canadian border at Port Huron, Michigan. In Michigan, it is a state trunkline highway that enters the state south of Coldwater and passes the cities of Lansing and Flint in the Lower Peninsula. A north–south freeway from the Indiana–Michigan border to the Lansing area, it changes direction to east–west after running concurrently with I-96. The freeway continues to Port Huron before terminating in the middle of the twin-span Blue Water Bridge while running concurrently with I-94 at the border. There are four related business loops for I-69 in the state, connecting the freeway to adjacent cities. Predecessors to I-69 include the first M-29, US Highway 27 (US 27), M-78 and M-21. The freeway was not included on the original Interstate Highway System planning maps in the mid-1950s, but it was added in 1958 along a shorter route. Michig ...
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