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Super Outbreak (other)
In late 2023, American meteorologist and tornado expert Thomas P. Grazulis created the outbreak intensity score (OIS) as a way to rank tornado outbreaks. For the score, only significant tornadoes are counted: F2/EF2 tornadoes receive 2 points each, F3/EF3 tornadoes receive 5 points each, F4/EF4 tornadoes receive 10 points each, and F5/EF5 tornadoes receive 15 points each. The number of total points determine the rating for the outbreak, which is broken up into seven categories. List Super outbreaks There have been two tornado outbreaks which scored more than 250 points on the OIS, reaching the status of "super outbreak". Historic outbreaks There have been 24 tornado outbreaks which scored at least 120 points, but less than 249 on the OIS, reaching the status of "historic outbreak". Devastating outbreaks There have been several tornado outbreaks which scored at least 80 points, but less than 120 on the OIS, reaching the status of "devastating outbreak". Major ou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Meteorologist
A meteorologist is a scientist who studies and works in the field of meteorology aiming to understand or predict Earth's atmospheric phenomena including the weather. Those who study meteorological phenomena are meteorologists in research, while those using mathematical models and knowledge to prepare daily weather forecasts are called ''weather forecasters'' or ''operational meteorologists''. Meteorologists work in government agencies, private consulting and research services, industrial enterprises, utilities, radio and television stations, and in education. They are not to be confused with weather presenters, who present the weather forecast in the media and range in training from journalists having just minimal training in meteorology to full fledged meteorologists. Description Meteorologists study the Earth's atmosphere and its interactions with the Earth's surface, the oceans and the biosphere. Their knowledge of applied mathematics and physics allows them to understand t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Centers For Environmental Information
The National Centers for Environmental Information (NCEI), an agency of the United States government, manages one of the world's largest archives of atmospheric, coastal, geophysical, and oceanic data, containing information that ranges from the surface of the sun to Earth's core, and from ancient tree ring and ice core records to near-real-time satellite images. NCEI is operated by the National Environmental Satellite, Data, and Information Service (NESDIS), an office of the National Oceanic and Atmospheric Administration (NOAA), which operates under the U.S. Department of Commerce. In addition to archiving data, NCEI develops products and services that make the data readily available for use by scientists, government officials, the business community, academia, non-governmental organizations, and the general public. History NCEI was created in 2015 from the merger of three NOAA data centers: # National Climatic Data Center (NCDC) # National Geophysical Data Center (NGDC ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sioux Falls, South Dakota
Sioux Falls () is the most populous city in the U.S. state of South Dakota and the 130th-most populous city in the United States. It is the county seat of Minnehaha County and also extends into Lincoln County to the south, which continues up to the Iowa state line. As of 2020, Sioux Falls had a population of 192,517, which was estimated in 2022 to have increased to 202,600. The Sioux Falls metro area accounts for more than 30% of the state's population. Chartered in 1856 on the banks of the Big Sioux River, the city is situated in the rolling hills at the junction of interstates 29 and 90. History The history of Sioux Falls revolves around the cascades of the Big Sioux River. The falls were created about 14,000 years ago during the last ice age. The lure of the falls has been a powerful influence. Ho-Chunk, Ioway, Otoe, Missouri, Omaha (and Ponca at the time), Quapaw, Kansa, Osage, Arikira, Dakota, and Cheyenne people inhabited and settled the region previous to Europea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tornado Outbreak Of June 14–18, 1992
The Tornado outbreak of June 14–18, 1992 was one of the largest tornado outbreaks on record, affecting portions of the Central United States from June 14 to June 18, 1992. The outbreak began on June 14 when six tornadoes touched down in Colorado and Idaho. Fifty-eight tornadoes were reported across portions of the Great Plains on June 15, and 65 more were reported over much of the central U.S. on June 16. The 123 tornadoes that touched down on June 15–16 make that two-day span the 5th largest two-day tornado outbreak in U.S. history behind the 1974 Super Outbreak, the May 2004 tornado outbreak sequence, the tornado outbreak of April 14–16, 2011, and the 2011 Super Outbreak. Twenty-eight more tornadoes touched down on June 17, and 13 more touched down on June 18, giving this outbreak 170 confirmed tornadoes. Meteorological synopsis A major spring storm began developing in the western United States over the weekend of June 13–14, 1992. The storm ejected a minor upper air im ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jackson, Mississippi
Jackson, officially the City of Jackson, is the Capital city, capital of and the List of municipalities in Mississippi, most populous city in the U.S. state of Mississippi. The city is also one of two county seats of Hinds County, Mississippi, Hinds County, along with Raymond, Mississippi, Raymond. The city had a population of 153,701 at the 2020 census, down from 173,514 at the 2010 census. Jackson's population declined more between 2010 and 2020 (11.42%) than any Major cities in the U.S., major city in the United States. Jackson is the anchor for the Jackson metropolitan area, Mississippi, Jackson metropolitan statistical area, the largest metropolitan area completely within the state. With a 2020 population estimated around 600,000, metropolitan Jackson is home to over one-fifth of Mississippi's population. The city sits on the Pearl River (Mississippi–Louisiana), Pearl River and is located in the greater Jackson Prairie region of Mississippi. Founded in 1821 as the site f ... [...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 whic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Storm Prediction Center
The Storm Prediction Center (SPC) is a US government agency 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, the Storm Prediction Center is tasked with forecasting the risk of severe thunderstorms and tornadoes in the contiguous United States. It issues convective outlooks, mesoscale discussions, and watches as a part of this process. Convective outlooks are issued for the following eight days (issued separately for Day 1, Day 2, Day 3, and Days 4–8), and detail the risk of severe thunderstorms and tornadoes during the given forecast period, although tornado, hail and wind details are only available for Days 1 and 2. Day 3, as well as 4–8 use a probabilistic scal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tornado Outbreak Of November 21–23, 1992
The Tornado outbreak of November 1992, sometimes referred to as The Widespread Outbreak (as was the 1974 Super Outbreak initially), was a devastating, three-day outbreak of tornadoes that struck the Eastern and Midwestern United States on November 21–23. This exceptionally long-lived and geographically large outbreak produced 95 tornadoes over a 41-hour period, making it one of the longest-lasting and largest outbreaks ever recorded in the US, and published studies of the outbreak have indicated the possibility of even more tornadoes (92, 94, 146 and 143, with higher numbers reflected in NOAA studies). There were 26 fatalities, 641 injuries, and over $300 million in damage. Meteorological synopsis On November 21, 1992, a very strong cold-core low was located over southeastern New Mexico; in nearby El Paso, mid-level temperatures of were recorded. Rounding the base of this feature was an jet streak. At the surface and in the lower levels of the atmosphere, low pressure w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tornado Outbreak Sequence Of May 6–27, 1995
The Tornado outbreak sequence of May 6–27, 1995 was a long-lasting tornado outbreak sequence during May 1995. Thirteen deaths occurred due to the outbreak. Nearly 300 tornadoes occurred during this period from the Central US through the Southeast and into the Mid-Atlantic. The main event days were May 6 – May 7, May 9, May 13, May 18, and May 27. May 13 tornadoes in the Midwest Another tornado outbreak which the National Weather Service issued a high risk for occurred in Illinois, Indiana, and Kentucky. The tornadoes that occurred on this day resulted in three deaths all from the same tornado that moved through Montgomery and Boone Counties in Indiana just west of Indianapolis. A tornado also hit the eastern sections of the Indianapolis area causing damage to dozens of structures but no injuries. Several destructive tornadoes also touched down south and west of the Peoria, Illinois Metro Area including two F4s that resulted in 50 injuries. May 18 tornado outbreak This w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tornado Outbreak Sequence Of May 2003
The tornado outbreak sequence of May 2003 was a prolonged and destructive series of tornado outbreaks that affected much of the Great Plains and Eastern United States in early May 2003. Most of the severe activity was concentrated between May 4 and May 10, which saw more tornadoes than any other week-long span in recorded history; 338 tornadoes occurred during this period, concentrated in the Ozarks and central Mississippi River Valley. Additional tornadoes were produced by the same storm systems from May 3 to May 11, producing 401 tornadoes overall, of which 65 were significant. Six of the tornadoes were rated F4, and of these four occurred on May 4, the most prolific day of the tornado outbreak sequence; these were the outbreak's strongest tornadoes. Damage caused by the severe weather and associated flooding amounted to US$4.1 billion (US$5.8 billion in 2016), making it the costliest U.S. tornado outbreak of the 2000s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Department Of Commerce
The United States Department of Commerce is an executive department of the U.S. federal government concerned with creating the conditions for economic growth and opportunity. Among its tasks are gathering economic and demographic data for business and government decision making, and helping to set industrial standards. Its main purpose is to create jobs, promote economic growth, encourage sustainable development and block harmful trade practices of other nations. Steve Charnovitz, "Reinventing the Commerce Dept.", ''Journal of Commerce'', July 12, 1995. It is headed by the Secretary of Commerce, who reports directly to the President of the United States and is a member of the president's Cabinet. The Department of Commerce is headquartered in the Herbert C. Hoover Building in Washington, DC. History Organizational history The department was originally created as the United States Department of Commerce and Labor on February 14, 1903. It was subsequently renamed the Departmen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1965 Palm Sunday Tornado Outbreak
On April 10–12, 1965, a devastating severe weather event affected the Midwestern and Southeastern United States. The tornado outbreak produced 55 confirmed tornadoes in one day and 16 hours. The worst part of the outbreak occurred during the afternoon hours of April 11 into the overnight hours going into April 12. The second-largest tornado outbreak on record at the time, this deadly series of tornadoes, which became known as the 1965 Palm Sunday tornado outbreak, inflicted a swath of destruction from Cedar County, Iowa, to Cuyahoga County, Ohio, and a swath from Kent County, Michigan, to Montgomery County, Indiana. The main part of the outbreak lasted 16 hours and 35 minutes and is among the most intense outbreaks, in terms of tornado strength, ever recorded, including at least four "double/twin funnel" tornadoes. In all, the outbreak killed 266 people, injured 3,662 others, and caused $1.217 billion (1965 USD) in damage. Background A vigorous e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
