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Tornado Outbreak Of August 6, 1969
On August 6, 1969, a destructive tornado outbreak affected portions of north central Minnesota on August 6, 1969. The severe weather event generated 13 confirmed tornadoes, killed 15 people, and caused 109 injuries. To date, the outbreak remains the deadliest on record in the North Woods region of Minnesota. It is also known as the 1969 Minnesota tornado outbreak and the 1969 North Woods tornado outbreak. The most destructive tornado of the outbreak was a violent F4 that leveled miles of timberland and farmland across portions of Crow Wing, Cass, and Aitkin counties in Minnesota, killing at least 12 people and injuring 70 others. Background Very warm, humid, summertime air had pushed into central and southern Minnesota on August 6, 1969. Minneapolis recorded a high temperature of with dew points near . Meanwhile, strong upper-level winds over northern Minnesota and an approaching cold front from the west added the needed ingredie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tornadoes Of 1969
This page documents the tornadoes and tornado outbreaks of 1969, primarily in the United States. Most tornadoes form in the U.S., although some events may take place internationally. Tornado statistics for older years like this often appear significantly lower than modern years due to fewer reports or confirmed tornadoes. Events United States yearly total January There were 3 confirmed tornadoes in the United States in January. January 23 A series of at least three tornadoes impacted Mississippi, Tennessee, and Kentucky. A devastating F4 tornado traveled through Mississippi, killing 32 people and injuring 241. The worst damage was in Hazlehurst where 11 people died, 140 were injured, and 175 homes were damaged or destroyed. The community of Sardis was also destroyed, with 8 people killed. One school bus was carried and rolled a quarter mile while another was overturned, injuring 14 students. The tornado killed another 2 people south of Harrisville, and 10 people in 4 fa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Roosevelt Lake (Minnesota)
Lake Roosevelt is a lake in Cass County and Crow Wing County, Minnesota, in the United States. Roosevelt Lake was named for Theodore Roosevelt, 26th President of the United States. See also *List of lakes in Minnesota This is a list of lakes of Minnesota. Although promoted as the "Land of 10,000 Lakes", Minnesota has 11,842 lakes of or more. The 1968 state survey found 15,291 lake basins, of which 3,257 were dry. If all basins over 2.5 acres were counted, Minn ... References Lakes of Minnesota Lakes of Cass County, Minnesota Lakes of Crow Wing County, Minnesota {{CrowWingCountyMN-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tornado Outbreak Sequence
A tornado outbreak sequence, or tornado outbreak day sequence, sometimes referred to as an extended tornado outbreak, is a period of continuous or nearly continuous high tornado activity consisting of a series of tornado outbreaks over multiple days with no or very few days lacking tornado outbreaks. Major tornado outbreak sequences occurred in the United States in May 1917, 1930, 1949, 1965, 1974, 2003, and 2011. Another exceptional outbreak sequence apparently occurred during mid to late May 1896. Although some days lacked tornado outbreaks, the period from mid to late April 2011 and late May 2019 also were periods of especially high tornado activity. Tornado outbreak sequences tend to dominate the tornado statistics for a year and often cause a spike in tornado numbers for the entire year. Not all periods of active tornado occurrences are outbreak sequences, there must be no break in the activity to satisfy the definition. Active periods occur ranging from every year to ev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Norman, Oklahoma
Norman () is the third-largest city in the U.S. state of Oklahoma, with a population of 128,097 as of 2021. It is the largest city and the county seat of Cleveland County, Oklahoma, Cleveland County, and the second-largest city in the Oklahoma City metropolitan area, behind the state capital, Oklahoma City. It is 20 miles (32 kilometers) south of OKC, OK, OKC. Norman was settled during the Land Run of 1889, which opened the former Unassigned Lands of Indian Territory to American pioneer settlement. The city was named in honor of Abner Norman, the area's initial land surveyor, and was formally incorporated on , 1891. Norman has prominent higher education and related research industries, as it is home to the University of Oklahoma, the largest university in the state, with nearly 32,000 students. The university is well known for its sporting events by teams under the banner of the nickname Oklahoma Sooners, "Sooners," with over 85,000 people routinely attending American football, f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monthly Weather Review
The ''Monthly Weather Review'' is a peer-reviewed scientific journal published by the American Meteorological Society. It covers research related to analysis and prediction of observed and modeled circulations of the atmosphere, including technique development, data assimilation, model validation, and relevant case studies. This includes papers on numerical techniques and data assimilation techniques that apply to the atmosphere and/or ocean environment. The editor-in-chief is David M. Schultz (University of Manchester). History The journal was established in July 1872 by the United States Army Signal Corps. It was issued by the Office of the Chief Signal Officer from 1872 until 1891. In 1891, the Signal Office's meteorological responsibilities were transferred to the Weather Bureau under the United States Department of Agriculture. The Weather Bureau published the journal until 1970 when the Bureau became part of the newly formed National Oceanic and Atmospheric Administration, ... [...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] |
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tornado And Storm Research Organisation
The Tornado and Storm Research Organisation (TORRO) was founded by Terence Meaden in 1974. Originally called the Tornado Research Organisation it was expanded in 1982 following the inclusion of the Thunderstorm Census Organisation (TCO) after the death of its founder Morris Bower and his wife. The current Head of TORRO is Paul Knightley, a professional meteorologist. TORRO comprises nearly 400 members in the United Kingdom and others from around the world, from amateurs to professional meteorologists, and almost 30 staff. TORRO maintains a large storm spotter network throughout the British Isles and collects and records reports of severe weather. TORRO carries out research on many aspects of severe weather including ball lightning, blizzards & heavy snowfall, coastal impacts, hailstorms, lightning impacts, tornadoes, thunderstorms, weather disasters, and weather & health. Tornadoes in the UK are classified using the T-scale. TORRO has also developed a hailstorm intensity scale. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
TORRO Scale
The TORRO tornado intensity scale (or T-Scale) is a scale measuring tornado intensity between T0 and T11. It was proposed by Terence Meaden of the Tornado and Storm Research Organisation (TORRO), a meteorological organisation in the United Kingdom, as an extension of the Beaufort scale. History and derivation from Beaufort scale The scale was tested from 1972 to 1975 and was made public at a meeting of the Royal Meteorological Society in 1975. The scale sets T0 as the equivalent of 8 on the Beaufort scale and is related to the Beaufort scale (B), up to 12 on the Beaufort scale, by the formula: : ''B'' = 2 (''T'' + 4) and conversely: : ''T'' = (''B''/2 - 4) The Beaufort scale was first introduced in 1805, and in 1921 quantified. It expresses the wind speed as faster than v in the formula: : v = 0.837 ''B''3/2 m/s TORRO scale formula Most UK tornadoes are T6 or below with the strongest known UK tornado estimated as a T8 (the London tornado of 1091). For comparison, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United Kingdom
The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the continental mainland. It comprises England, Scotland, Wales and Northern Ireland. The United Kingdom includes the island of Great Britain, the north-eastern part of the island of Ireland, and many smaller islands within the British Isles. Northern Ireland shares a land border with the Republic of Ireland; otherwise, the United Kingdom is surrounded by the Atlantic Ocean, the North Sea, the English Channel, the Celtic Sea and the Irish Sea. The total area of the United Kingdom is , with an estimated 2020 population of more than 67 million people. The United Kingdom has evolved from a series of annexations, unions and separations of constituent countries over several hundred years. The Treaty of Union between the Kingdom of England (which included Wales, annexed in 1542) and the Kingdom of Scotland in 170 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Environment And Climate Change Canada
Environment and Climate Change Canada (ECCC; french: Environnement et Changement climatique Canada),Environment and Climate Change Canada is the applied title under the Federal Identity Program; the legal title is Department of the Environment (). is the department of the Government of Canada responsible for coordinating environmental policies and programs, as well as preserving and enhancing the natural environment and renewable resources. It is also colloquially known by its former name, Environment Canada (EC; french: Environnement Canada, links=no). The minister of environment and climate change has been Steven Guilbeault since October 26, 2021; Environment and Climate Change Canada supports the minister's mandate to: "preserve and enhance the quality of the natural environment, including water, air, soil, flora and fauna; conserve Canada's renewable resources; conserve and protect Canada's water resources; forecast daily weather conditions and warnings, and provide detail ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canada
Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by total area. Its southern and western border with the United States, stretching , is the world's longest binational land border. Canada's capital is Ottawa, and its three largest metropolitan areas are Toronto, Montreal, and Vancouver. Indigenous peoples have continuously inhabited what is now Canada for thousands of years. Beginning in the 16th century, British and French expeditions explored and later settled along the Atlantic coast. As a consequence of various armed conflicts, France ceded nearly all of its colonies in North America in 1763. In 1867, with the union of three British North American colonies through Confederation, Canada was formed as a federal dominion of four provinces. This began an accretion of provinces an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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