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March 2020 Tennessee Tornado Outbreak
A small but deadly tornado outbreak affected West and Middle Tennessee on the night of March 2 and into the morning of March 3, 2020, including a high-end EF3 tornado that hit Nashville and Mount Juliet, becoming the 6th costliest tornado in United States history, and a violent EF4 tornado that impacted areas in and just west of Cookeville. A total of 25 people were killed by the tornadoes, with an additional 309 being injured, and more than 70,000 lost electricity. The path of the Nashville tornado was very similar to the one that hit East Nashville in 1998. A few additional tornadoes were also confirmed in Alabama, southeastern Missouri, and western Kentucky. Total damage from the event reached $1.607 billion according to the National Centers for Environmental Information. Meteorological synopsis The threat for severe weather across Middle Tennessee and surrounding areas was not forecast well in advance. The Storm Prediction Center (SPC) first ... [...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] |
Coordinated Universal Time
Coordinated Universal Time or UTC is the primary time standard by which the world regulates clocks and time. It is within about one second of mean solar time (such as UT1) at 0° longitude (at the IERS Reference Meridian as the currently used prime meridian) and is not adjusted for daylight saving time. It is effectively a successor to Greenwich Mean Time (GMT). The coordination of time and frequency transmissions around the world began on 1 January 1960. UTC was first officially adopted as CCIR Recommendation 374, ''Standard-Frequency and Time-Signal Emissions'', in 1963, but the official abbreviation of UTC and the official English name of Coordinated Universal Time (along with the French equivalent) were not adopted until 1967. The system has been adjusted several times, including a brief period during which the time-coordination radio signals broadcast both UTC and "Stepped Atomic Time (SAT)" before a new UTC was adopted in 1970 and implemented in 1972. This change also a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Camden, Tennessee
Camden is a city in Benton County, Tennessee, United States. The population was 3,674 at the 2020 census. It is the county seat of Benton County. History Native Americans were living in the Camden area as early as the Archaic period (8000-1000 BC). A significant archaeological site has been excavated at nearby Eva (the actual site is now submerged under Kentucky Lake), uncovering evidence of semi-permanent habitation dating back 7000 years. The first European settlers arrived in the Benton County area around 1818, shortly after (and probably before) the county was purchased from the Chickasaw. Camden has its roots as a stopover along the stage coach route between Nashville and Memphis. Initially known as "Tranquility", the community had attained the name "Camden" by the 1830s, a name influenced by the Revolutionary War-era Battle of Camden. When Benton County was created in 1835, Camden was chosen as the county seat. The City of Camden was officially incorporated in 1838. On O ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carroll County, Tennessee
Carroll County is a county located in the western division of the U.S. state of Tennessee. As of the 2010 census, the population was 28,522. Its county seat is Huntingdon. The county was established by the Tennessee General Assembly on November 7, 1821, and was named for Governor William Carroll. Geography According to the U.S. Census Bureau, the county has a total area of , of which is land and (0.1%) is water. Carroll County Thousand Acre Recreational Lake The Carroll County Thousand Acre Recreational Lake serves as a large water territory in Carroll County, Tennessee. Many locals have called the lake their home for years. Properties around the lake continue to boom and flourish. In 2022, the county attempted to change the name, but after citizens of the county petitioning to keep the original name, they kept the Carrol County Thousand Acre Recreational Lake name the same. At the Carroll County Thousand Acre Recreational Lake, many visitors enjoy Sunset Grill, a famil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gibson County, Tennessee
Gibson County is a county located in the U.S. state of Tennessee. As of the 2010 census, the population was 49,683. Its county seat is Trenton. The county was formed in 1823 and named for John H. Gibson, a soldier of the Natchez Expedition and the Creek War.Fred Culp,Gibson County" ''Tennessee Encyclopedia of History and Culture''. Retrieved: June 28, 2013. History Gibson County is located in what was known as "Indian Land": territory that was legally occupied by Chickasaw Native American people. The Chickasaw Cession, proclaimed on January 7, 1819, eliminated those rights and opened the region to settlement and exploitation by white settlers and speculators. Soon after the Chickasaw Cession, the first log cabin in what was to become Gibson County had been built by Thomas Fite about eight miles (13 km) east of present-day Trenton. From 1819 the area was part of Carroll County but, as settlement progressed, citizens petitioned for the formation of a new county. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Interstate 40 In Tennessee
Interstate 40 (I-40) is part of the Interstate Highway System that spans from Barstow, California, to Wilmington, North Carolina. In Tennessee, I-40 traverses the entirety of the state from west to east, from the Mississippi River at the Arkansas border to the northern base of the Great Smoky Mountains at the North Carolina border. At a length of , the Tennessee segment of I-40 is the longest of the eight states on the route, and the longest Interstate Highway in Tennessee. Sometimes known as "Tennessee's Main Street", I-40 passes through Tennessee's three largest cities—Memphis, Nashville, and Knoxville—and serves the Great Smoky Mountains National Park, the most visited national park in the United States. It crosses all of Tennessee's physiographical provinces and Grand Divisions—the Mississippi Embayment and Gulf Coastal Plain in West Tennessee, the Highland Rim and Nashville Basin in Middle Tennessee, and the Cumberland Plateau, Cumberland Mountains, Ridge-and-Val ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jet Stream
Jet streams are fast flowing, narrow, meandering thermal wind, air currents in the Atmosphere of Earth, atmospheres of some planets, including Earth. On Earth, the main jet streams are located near the altitude of the tropopause and are westerly winds (flowing west to east). Jet streams may start, stop, split into two or more parts, combine into one stream, or flow in various directions including opposite to the direction of the remainder of the jet. Overview The strongest jet streams are the polar jets around the Polar vortex, polar vortices, at above sea level, and the higher altitude and somewhat weaker subtropical jets at . The Northern Hemisphere and the Southern Hemisphere each have a polar jet and a subtropical jet. The northern hemisphere polar jet flows over the middle to northern latitudes of North America, Europe, and Asia and their intervening oceans, while the southern hemisphere polar jet mostly circles Antarctica, both all year round. Jet streams are the prod ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barometric Pressure
Atmospheric pressure, also known as barometric pressure (after the barometer), is the pressure within the atmosphere of Earth. The standard atmosphere (symbol: atm) is a unit of pressure defined as , which is equivalent to 1013.25 millibars, 760mm Hg, 29.9212 inchesHg, or 14.696psi.International Civil Aviation Organization. ''Manual of the ICAO Standard Atmosphere'', Doc 7488-CD, Third Edition, 1993. . The atm unit is roughly equivalent to the mean sea-level atmospheric pressure on Earth; that is, the Earth's atmospheric pressure at sea level is approximately 1 atm. In most circumstances, atmospheric pressure is closely approximated by the hydrostatic pressure caused by the weight of air above the measurement point. As elevation increases, there is less overlying atmospheric mass, so atmospheric pressure decreases with increasing elevation. Because the atmosphere is thin relative to the Earth's radius—especially the dense atmospheric layer at low altitudes—the Earth's gravi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Low-pressure Area
In meteorology, a low-pressure area, low area or low is a region where the atmospheric pressure is lower than that of surrounding locations. Low-pressure areas are commonly associated with inclement weather (such as cloudy, windy, with possible rain or storms), while high-pressure areas are associated with lighter winds and clear skies. Winds circle anti-clockwise around lows in the northern hemisphere, and clockwise in the southern hemisphere, due to opposing Coriolis force, Coriolis forces. Low-pressure systems form under areas of wind divergence that occur in the upper levels of the Atmosphere of Earth, atmosphere (aloft). The formation process of a low-pressure area is known as cyclogenesis. In Meteorology#Dynamic meteorology, meteorology, atmospheric divergence aloft occurs in two kinds of places: * The first is in the area on the east side of upper Trough (meteorology), troughs, which form half of a Rossby wave within the Westerlies (a trough (meteorology), trough with la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tornado Watch
A tornado watch ( SAME code: TOA) is a severe weather watch product issued by national weather forecasting agencies when meteorological conditions are favorable for the development of severe thunderstorms capable of producing tornadoes. In addition to the potential for tornado development, thunderstorms that develop within the watch area may contain large hail, straight-line winds, intense rainfall and/or flooding that pose a similar damage risk as the attendant tornado threat. A tornado watch does not mean a tornado is active or ''will'' appear, just that favorable conditions increases the likelihood of such happening. A watch must not be confused with a tornado warning. Definition A ''tornado watch'' indicates that atmospheric conditions observed in and close to the watch area have created a significant risk for the development and intensification of severe convective thunderstorms capable of producing tornadoes, and are normally issued in advance of the onset of severe weathe ... [...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] |
Wind Shear
Wind shear (or windshear), sometimes referred to as wind gradient, is a difference in wind speed and/or direction over a relatively short distance in the atmosphere. Atmospheric wind shear is normally described as either vertical or horizontal wind shear. Vertical wind shear is a change in wind speed or direction with a change in altitude. Horizontal wind shear is a change in wind speed with a change in lateral position for a given altitude. Wind shear is a microscale meteorological phenomenon occurring over a very small distance, but it can be associated with mesoscale or synoptic scale weather features such as squall lines and cold fronts. It is commonly observed near microbursts and downbursts caused by thunderstorms, fronts, areas of locally higher low-level winds referred to as low-level jets, near mountains, radiation inversions that occur due to clear skies and calm winds, buildings, wind turbines, and sailboats. Wind shear has significant effects on the control of a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
