Hurricane Hanna (2020)
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Hurricane Hanna (2020)
Hurricane Hanna was the first of a record-tying six Atlantic hurricanes to make landfall in the United States in one year. The eighth named storm and first hurricane of the extremely active 2020 Atlantic hurricane season, Hanna developed from a tropical wave originating near Hispaniola. This disturbance dropped heavy rain upon parts of Hispaniola, Cuba, and Florida. The wave gradually became more organized and developed into a tropical depression in the central portion of the Gulf of Mexico. The depression strengthened into a tropical storm on July 24, setting a new record for the earliest eighth-named storm in the basin, getting its name 10 calendar days before the previous record holder, Tropical Storm Harvey of 2005. Hanna steadily intensified as it drifted toward Southern Texas, becoming the season's first hurricane early on July 25. It then began to quickly strengthen just before making landfall at 22:00 UTC later that day as a high-end Category 1 ...
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Texas
Texas (, ; Spanish language, Spanish: ''Texas'', ''Tejas'') is a state in the South Central United States, South Central region of the United States. At 268,596 square miles (695,662 km2), and with more than 29.1 million residents in 2020, it is the second-largest U.S. state by both List of U.S. states and territories by area, area (after Alaska) and List of U.S. states and territories by population, population (after California). Texas shares borders with the states of Louisiana to the east, Arkansas to the northeast, Oklahoma to the north, New Mexico to the west, and the Mexico, Mexican States of Mexico, states of Chihuahua (state), Chihuahua, Coahuila, Nuevo León, and Tamaulipas to the south and southwest; and has a coastline with the Gulf of Mexico to the southeast. Houston is the List of cities in Texas by population, most populous city in Texas and the List of United States cities by population, fourth-largest in the U.S., while San Antonio is the second most pop ...
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Mbar
The bar is a metric unit of pressure, but not part of the International System of Units (SI). It is defined as exactly equal to 100,000  Pa (100 kPa), or 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. The International System of Units, 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 as one of several units that "must not be introd ...
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Puerto Rico
Puerto Rico (; abbreviated PR; tnq, Boriken, ''Borinquen''), officially the Commonwealth of Puerto Rico ( es, link=yes, Estado Libre Asociado de Puerto Rico, lit=Free Associated State of Puerto Rico), is a Caribbean island and Unincorporated territories of the United States, unincorporated territory of the United States. It is located in the northeast Caribbean Sea, approximately southeast of Miami, Florida, between the Dominican Republic and the United States Virgin Islands, U.S. Virgin Islands, and includes the eponymous main island and several smaller islands, such as Isla de Mona, Mona, Culebra, Puerto Rico, Culebra, and Vieques, Puerto Rico, Vieques. It has roughly 3.2 million residents, and its Capital city, capital and Municipalities of Puerto Rico, most populous city is San Juan, Puerto Rico, San Juan. Spanish language, Spanish and English language, English are the official languages of the executive branch of government, though Spanish predominates. Puerto Rico ...
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Virgin Islands
The Virgin Islands ( es, Islas Vírgenes) are an archipelago in the Caribbean Sea. They are geology, geologically and biogeography, biogeographically the easternmost part of the Greater Antilles, the northern islands belonging to the Puerto Rico Trench and St. Croix being a displaced part of the same geologic structure. Politically, the British Virgin Islands have been governed as the western archipelago, island group of the Leeward Islands, which are the northern part of the Lesser Antilles, and form the border between the Caribbean Sea and the Atlantic Ocean. The archipelago is separated from the true Lesser Antilles by the Anegada Passage and from the List of islands of Puerto Rico, main island of Puerto Rico by the Virgin Passage. The islands fall into three different jurisdiction (area), political jurisdictions: * British Virgin Islands, Virgin Islands, informally referred to as British Virgin Islands, a British Overseas Territories, British overseas territory, * Virgin I ...
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Convection
Convection is single or multiphase fluid flow that occurs spontaneously due to the combined effects of material property heterogeneity and body forces on a fluid, most commonly density and gravity (see buoyancy). When the cause of the convection is unspecified, convection due to the effects of thermal expansion and buoyancy can be assumed. Convection may also take place in soft solids or mixtures where particles can flow. Convective flow may be transient (such as when a multiphase mixture of oil and water separates) or steady state (see Convection cell). The convection may be due to gravitational, electromagnetic or fictitious body forces. Heat transfer by natural convection plays a role in the structure of Earth's atmosphere, its oceans, and its mantle. Discrete convective cells in the atmosphere can be identified by clouds, with stronger convection resulting in thunderstorms. Natural convection also plays a role in stellar physics. Convection is often cate ...
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Africa
Africa is the world's second-largest and second-most populous continent, after Asia in both cases. At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 6% of Earth's total surface area and 20% of its land area.Sayre, April Pulley (1999), ''Africa'', Twenty-First Century Books. . With billion people as of , it accounts for about of the world's human population. Africa's population is the youngest amongst all the continents; the median age in 2012 was 19.7, when the worldwide median age was 30.4. Despite a wide range of natural resources, Africa is the least wealthy continent per capita and second-least wealthy by total wealth, behind Oceania. Scholars have attributed this to different factors including geography, climate, tribalism, Scramble for Africa, colonialism, the Cold War, neocolonialism, lack of democracy, and corruption. Despite this low concentration of wealth, recent economic expansion and the large and young ...
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Storm Surge
A storm surge, storm flood, tidal surge, or storm tide is a coastal flood or tsunami-like phenomenon of rising water commonly associated with low-pressure weather systems, such as cyclones. It is measured as the rise in water level above the normal tidal level, and does not include waves. The main meteorological factor contributing to a storm surge is high-speed wind pushing water towards the coast over a long fetch. Other factors affecting storm surge severity include the shallowness and orientation of the water body in the storm path, the timing of tides, and the atmospheric pressure drop due to the storm. There is a suggestion that climate change may be increasing the hazard of storm surges. Some theorize that as extreme weather becomes more intense and sea level rises due to climate change, storm surge is expected to cause more risk to coastal populations. Communities and governments can adapt by building hard infrastructure, like surge barriers, soft infrastructure, ...
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Eye (cyclone)
The eye is a region of mostly calm weather at the center of tropical cyclones. The eye of a storm is a roughly circular area, typically in diameter. It is surrounded by the ''eyewall'', a ring of towering thunderstorms where the most severe weather and highest winds occur. The cyclone's lowest barometric pressure occurs in the eye and can be as much as 15 percent lower than the pressure outside the storm. In strong tropical cyclones, the eye is characterized by light winds and clear skies, surrounded on all sides by a towering, symmetric eyewall. In weaker tropical cyclones, the eye is less well defined and can be covered by the central dense overcast, an area of high, thick clouds that show up brightly on satellite imagery. Weaker or disorganized storms may also feature an eyewall that does not completely encircle the eye or have an eye that features heavy rain. In all storms, however, the eye is the location of the storm's minimum barometric pressure—where the atmospheri ...
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Corpus Christi, Texas
Corpus Christi (; Ecclesiastical Latin: "''Body of Christ"'') is a coastal city in the South Texas region of the U.S. state of Texas and the county seat and largest city of Nueces County, it also extends into Aransas, Kleberg, and San Patricio Counties. It is southeast of San Antonio. Its political boundaries encompass Nueces Bay and Corpus Christi Bay. Its zoned boundaries include small land parcels or water inlets of three neighboring counties. The city's population was 317,863 in 2020, making it the eighth-most populous city in Texas. The Corpus Christi metropolitan area had an estimated population of 442,600. It is also the hub of the six-county Corpus Christi-Kingsville Combined Statistical Area, with a 2013 estimated population of 516,793. The Port of Corpus Christi is the fifth-largest in the United States. The region is served by the Corpus Christi International Airport. The city's name means body of Christ in Ecclesiastical Latin, in reference to the Chr ...
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Port Mansfield
Port Mansfield is a census-designated place (CDP) in Willacy County, Texas, United States. The population was 226 at the 2010 census. Geography Port Mansfield is located at (26.555453, -97.431051). According to the United States Census Bureau, the CDP has a total area of 5.7 square miles (14.8 km2), of which, 5.2 square miles (13.5 km2) of it is land and 0.5 square miles (1.3 km2) of it (8.76%) is water. A navigational channel connects Port Mansfield to the Intracoastal Waterway, and to the Gulf of Mexico, cutting through Padre Island via the Port Mansfield Channel. The cut through South Padre Island had shoaled considerably in the early 2000s, and by 2008 only shallow draft boats could safely enter at the Mansfield cut. The channel was dredged in the winter months of 2009-2010 by the United States Army Corps of Engineers using Federal relief money following Hurricanes Rita and Dolly. The channel was dredged in the Spring of 2021 and is now 16–20 ...
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Rio Grande Valley (Texas)
The Lower Rio Grande Valley ( es, Valle del Río Grande), commonly known as the Rio Grande Valley or locally as the Valley or RGV, is a region spanning the border of Texas and Mexico located in a floodplain of the Rio Grande near its mouth. The region includes the southernmost tip of South Texas and a portion of northern Tamaulipas, Mexico. It consists of the Brownsville, Harlingen, Weslaco, Pharr, McAllen, Edinburg, Mission, San Juan, and Rio Grande City metropolitan areas in the United States and the Matamoros, Río Bravo, and Reynosa metropolitan areas in Mexico. The area is generally bilingual in English and Spanish, with a fair amount of Spanglish due to the region's diverse history and transborder agglomerations It is home to some of the poorest cities in the nation, as well as many unincorporated, persistent poverty communities called ''colonias''. A large seasonal influx occurs of "winter Texans" — people who come down from the north for the winter and th ...
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Thunderstorm
A thunderstorm, also known as an electrical storm or a lightning storm, is a storm characterized by the presence of lightning and its acoustic effect on the Earth's atmosphere, known as thunder. Relatively weak thunderstorms are sometimes called thundershowers. Thunderstorms occur in a type of cloud known as a cumulonimbus. They are usually accompanied by strong winds and often produce heavy rain and sometimes snow, sleet, or hail, but some thunderstorms produce little precipitation or no precipitation at all. Thunderstorms may line up in a series or become a rainband, known as a squall line. Strong or severe thunderstorms include some of the most dangerous weather phenomena, including large hail, strong winds, and tornadoes. Some of the most persistent severe thunderstorms, known as supercells, rotate as do cyclones. While most thunderstorms move with the mean wind flow through the layer of the troposphere that they occupy, vertical wind shear sometimes causes ...
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