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Tornado Outbreak Of Leap Day 1952
A localized, but destructive and deadly tornado outbreak impacted Tennessee, Alabama, and Georgia on Leap Day in 1952. Thanks in part to unseasonably strong jet stream winds and a strong cold front, eight tornadoes left trails of damage and casualties. The tornado to cause the most casualties was an F1 tornado in Belfast, Tennessee, which killed three people and injured 166. A violent F4 tornado moved through Fayetteville, Tennessee, destroying most of the town and killing two and injuring 150 others. On the north side of Fort Payne, Alabama, an F3 tornado caused major damage and injured 12 people. In all, the outbreak killed five, injured 336, and caused $3.1 million (1952 USD) in damage. Four more fatalities and 14 more injuries occurred from other non-tornadic events as well. Meteorological synopsis On February 29, 1952, a strong cold front extending down from a low-pressure area spanned from Southern Indiana and Central Ohio southwestward through Central ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tornadoes Of 1952
This page documents the tornadoes and tornado outbreaks of 1952, 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. The total count of tornadoes and ratings differs from various agencies accordingly. The article, therefore, documents information from the most contemporary official sources alongside assessments from tornado historian Thomas P. Grazulis. Events Although fewer tornadoes were confirmed than the previous year, 1952 had an exceptionally high number of F4 tornadoes. There was 18 tornadoes that had this rating, mostly due to an unusually intense Tornado outbreak of March 21–22, 1952, Mid-March outbreak that produced 11 of them along with 11 F3 tornadoes. This outbreak is also what drove the death toll to well over 200 that year. Despite this, no tornadoes were ra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tornado Outbreak
A tornado outbreak is the occurrence of multiple tornadoes spawned by the same Synoptic scale meteorology, synoptic scale weather system. The number of tornadoes required to qualify as an outbreak typically are at least six to ten, with at least two rotational locations (if squall line) or at least two supercells producing Tornado family, multiple tornadoes. The tornadoes usually occur within the same day or continue into the early morning hours of the succeeding day, and within the same region. Most definitions allow for a break in tornado activity (time elapsed from the end of the last tornado to the beginning of the next tornado) of six hours. If tornado activity indeed resumes after such a lull, many definitions consider the event to be a new outbreak. A series of continuous or nearly continuous tornado outbreak days is a tornado outbreak sequence. In the United States and Canada, tornado outbreaks usually occur from March through June in the Great Plains, the Midwestern Unit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mbar
The bar is a metric unit of pressure defined as 100,000 Pa (100 kPa), though not part of the International System of Units (SI). A pressure of 1 bar is slightly less than the current average atmospheric pressure on Earth at sea level (approximately 1.013 bar). By the barometric formula, 1 bar is roughly the atmospheric pressure on Earth at an altitude of 111 metres at 15 °C. The bar and the millibar were introduced by the Norwegian meteorologist Vilhelm Bjerknes, who was a founder of the modern practice of weather forecasting, with the bar defined as one megadyne per square centimetre. The SI brochure, despite previously mentioning the bar, now omits any mention of it.. The bar has been legally recognised in countries of the European Union since 2004.British Standard BS 350:2004 ''Conversion Factors for Units''. The US National Institute of Standards and Technology (NIST) deprecates its use except for "limited use in meteorology" and lists it a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marshall County, Tennessee
Marshall County is a county A county () is a geographic region of a country used for administrative or other purposesL. Brookes (ed.) '' Chambers Dictionary''. Edinburgh: Chambers Harrap Publishers Ltd, 2005. in some nations. The term is derived from the Old French denoti ... located in the U.S. state of Tennessee. As of the 2020 United States census, 2020 census, the population was 34,318. Its county seat is Lewisburg, Tennessee, Lewisburg. Marshall County comprises the Lewisburg Micropolitan Statistical Area, which is also included in the Nashville, Tennessee, Nashville-Davidson–Murfreesboro, Tennessee, Murfreesboro–Franklin, Tennessee, Franklin, TN Nashville metropolitan area, Metropolitan Statistical Area. It is in Middle Tennessee, one of the three Grand Divisions of Tennessee, Grand Divisions of the state. The Tennessee Walking Horse Breeders' and Exhibitors' Association is based here. In addition, the fainting goat is another animal breed developed here. To celeb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fujita Scale
The Fujita scale (F-Scale; ), or Fujita–Pearson scale (FPP scale), is a scale for rating tornado intensity, based primarily on the damage tornadoes inflict on human-built structures and vegetation. The official Fujita scale category is determined by meteorologists and civil engineer, engineers after a ground or Aerial survey, aerial damage survey, or both; and depending on the circumstances, ground-swirl patterns (cycloidal marks), weather radar data, witness testimonies, media reports and damage imagery, as well as photogrammetry or videogrammetry if motion picture recording is available. The Fujita scale was replaced with the Enhanced Fujita scale (EF-Scale) in the United States in February 2007. In April 2013, Canada adopted the EF-Scale over the Fujita scale along with 31 "Specific Damage Indicators" used by Environment Canada (EC) in their ratings. Background The scale was introduced in 1971 by Ted Fujita of the University of Chicago, in collaboration with Allen Pearson ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Central Time Zone
The North American Central Time Zone (CT) is a time zone in parts of Canada, the United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ..., Mexico, Central America, and a few Caribbean Islands, Caribbean islands. In parts of that zone (20 states in the US, three provinces or territories in Canada, and several border municipalities in Mexico), the Central Time Zone is affected by two time designations yearly: Central Standard Time (CST) is observed from the first Sunday in November to the second Sunday in March. It is UTC−06:00, six hours behind Coordinated Universal Time (UTC) and designated internationally as UTC−6. From the second Sunday in March to the first Sunday in November the same areas observe daylight saving time (DST), creating the designation of Central ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coordinated Universal Time
Coordinated Universal Time (UTC) is the primary time standard globally used to regulate clocks and time. It establishes a reference for the current time, forming the basis for civil time and time zones. UTC facilitates international communication, navigation, scientific research, and commerce. UTC has been widely embraced by most countries and is the effective successor to Greenwich Mean Time (GMT) in everyday usage and common applications. In specialised domains such as scientific research, navigation, and timekeeping, other standards such as Universal Time, UT1 and International Atomic Time (TAI) are also used alongside UTC. UTC is based on TAI (International Atomic Time, abbreviated from its French name, ''temps atomique international''), which is a weighted average of hundreds of atomic clocks worldwide. UTC is within about one second of mean solar time at 0° longitude, the currently used prime meridian, and is not adjusted for daylight saving time. The coordination of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Time Zone
A time zone is an area which observes a uniform standard time for legal, Commerce, commercial and social purposes. Time zones tend to follow the boundaries between Country, countries and their Administrative division, subdivisions instead of strictly following longitude, because it is convenient for areas in frequent communication to keep the same time. Each time zone is defined by a standard offset from Coordinated Universal Time (UTC). The offsets range from UTC−12:00 to UTC+14:00, and are usually a whole number of hours, but a few zones are offset by an additional 30 or 45 minutes, such as in Indian Standard Time, India and Nepal Time, Nepal. Some areas in a time zone may use a different offset for part of the year, typically one hour ahead during spring (season), spring and summer, a practice known as daylight saving time (DST). List of UTC offsets In the table below, the locations that use daylight saving time (DST) are listed in their UTC offset when DST is ' ... [...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] |
Northeast Alabama
North Alabama is a region of the U.S. state of Alabama. Several geographic definitions for the area exist, with all descriptions including the nine counties of Alabama's Tennessee Valley region. The North Alabama Industrial Development Association also lists Cherokee, Cullman, Franklin, and Winston counties in the region. The Alabama Mountain Lakes Tourist Association expands the definition further to include Blount, Etowah, and Marion counties. Huntsville is the region's largest metropolitan area. Decatur and Florence-Muscle Shoals are classified as metropolitan areas as well. Albertville, Cullman, Fort Payne, and Scottsboro are each the hubs of their own micropolitan regions. Other cities of notable size include Madison and Athens. Locals tend to refer to this area as the "Tennessee Valley" in reference to the Tennessee River, which flows through the northernmost part of the state. Large parts of North Alabama are low upland, the eastern regions part of the Cumb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Middle Tennessee
Middle Tennessee is one of the three Grand Divisions of Tennessee that composes roughly the central portion of the state. It is delineated according to state law as 41 of the state's 95 counties. Middle Tennessee contains the state's capital and largest city, Nashville, as well as Clarksville, the state's fifth largest city, and Murfreesboro, the state's sixth largest city and largest suburb of Nashville. The Nashville metropolitan area, located entirely within the region, is the most populous metropolitan area in the state, and the Clarksville metropolitan area is the state's sixth most populous. Middle Tennessee is both the largest, in terms of land area, and the most populous of the state's three Grand Divisions. Geographically, Middle Tennessee is composed of the Highland Rim, which completely surrounds the Nashville Basin. The Cumberland Plateau is located in the eastern part of the region. Culturally, Middle Tennessee is considered part of the Upland South. Commodi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tornado
A tornado is a violently rotating column of air that is in contact with the surface of Earth and a cumulonimbus cloud or, in rare cases, the base of a cumulus cloud. It is often referred to as a twister, whirlwind or cyclone, although the word cyclone is used in meteorology to name a weather system with a low-pressure area in the center around which, from an observer looking down toward the surface of the Earth, winds blow counterclockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere. Tornadoes come in many shapes and sizes, and they are often (but not always) visible in the form of a funnel cloud, condensation funnel originating from the base of a cumulonimbus cloud, with a cloud of rotating debris and dust beneath it. Most tornadoes have wind speeds less than , are about across, and travel several kilometers (a few miles) before dissipating. The Tornado records#Highest winds observed in a tornado, most extreme tornadoes can attain wind speeds of mo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
