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List Of Category 4 Hurricanes
Category 4 hurricanes are tropical cyclones that reach Category 4 intensity on the Saffir–Simpson scale. Category 4 hurricanes that later attained Category 5 strength are not included in this list. The Atlantic basin includes the open waters of the Atlantic Ocean, the Caribbean Sea and the Gulf of Mexico. Category 4 is the second-highest hurricane classification category on the Saffir–Simpson Hurricane Scale, and storms that are of this intensity maintain maximum sustained winds of 113–136 knots (130–156 mph, 209–251 km/h). Based on the Atlantic hurricane database, 144 hurricanes have attained Category 4 hurricane status since 1851, the start of modern meteorological record keeping. Category 4 storms are considered extreme hurricanes. Hurricane Ike, which was a Category 4 storm, brought on a storm surge, the third greatest storm surge ever recorded (after Hurricane Katrina and Hurricane Camille, re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ian 2022-09-28 1531Z
Ian or Iain is a name of Scottish Gaelic origin, derived from the Hebrew given name (Yohanan, ') and corresponding to the English name John (given name), John. The spelling Ian is an Anglicization of the Scottish Gaelic forename ''Iain''. It is a popular name in Scotland, where it originated, as well as other English-speaking world, English-speaking countries. The name has fallen out of the top 100 male baby names in the United Kingdom, having peaked in popularity as one of the top 10 names throughout the 1960s. In 1900, Ian was the 180th most popular male baby name in England and Wales. , the name has been in the top 100 in the United States every year since 1982, peaking at 65 in 2003. Other Gaelic forms of "John" include "Seonaidh" ("Johnny" from Scots language, Lowland Scots), "Seon" (from English), "Seathan", and "Seán" and "Eoin" (from Irish language, Irish). Its Welsh language, Welsh counterpart is Ioan (other), Ioan, its Cornish language, Cornish equivalent is Y ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cape Verde Hurricane
A Cape Verde hurricane or Cabo Verde hurricane is an Atlantic hurricane that originates at low-latitude in the deep tropics from a tropical wave that has passed over or near the Cape Verde islands after exiting the coast of West Africa. The average Atlantic hurricane season has about two Cape Verde hurricanes, which are often the largest and most intense storms of the season due to having plenty of warm open ocean over which to develop before encountering land or other factors prompting weakening. A good portion of Cape Verde storms are large, and some, such as Hurricane Ivan, Hurricane Dorian, Hurricane Laura and Hurricane Irma have set various records. Most of the longest-lived tropical cyclones in the Atlantic basin are Cape Verde hurricanes. While many move harmlessly out to sea, some move across the Caribbean sea and into the Gulf of Mexico, becoming damaging storms for Caribbean nations, Central America, Mexico, Bermuda, the United States, and occasionally even Canada. Resea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Internet Archive
The Internet Archive is an American digital library with the stated mission of "universal access to all knowledge". It provides free public access to collections of digitized materials, including websites, software applications/games, music, movies/videos, moving images, and millions of books. In addition to its archiving function, the Archive is an activist organization, advocating a free and open Internet. , the Internet Archive holds over 35 million books and texts, 8.5 million movies, videos and TV shows, 894 thousand software programs, 14 million audio files, 4.4 million images, 2.4 million TV clips, 241 thousand concerts, and over 734 billion web pages in the Wayback Machine. The Internet Archive allows the public to upload and download digital material to its data cluster, but the bulk of its data is collected automatically by its web crawlers, which work to preserve as much of the public web as possible. Its web archiving, web archive, the Wayback Machine, contains hu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anemometer
In meteorology, an anemometer () is a device that measures wind speed and direction. It is a common instrument used in weather stations. The earliest known description of an anemometer was by Italian architect and author Leon Battista Alberti (1404–1472) in 1450. History The anemometer has changed little since its development in the 15th century. Alberti is said to have invented it around 1450. In the ensuing centuries numerous others, including Robert Hooke (1635–1703), developed their own versions, with some mistakenly credited as its inventor. In 1846, John Thomas Romney Robinson (1792–1882) improved the design by using four hemispherical cups and mechanical wheels. In 1926, Canadian meteorologist John Patterson (1872–1956) developed a three-cup anemometer, which was improved by Brevoort and Joiner in 1935. In 1991, Derek Weston added the ability to measure wind direction. In 1994, Andreas Pflitsch developed the sonic anemometer. Velocity anemometers Cup anemomet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dvorak Technique
The Dvorak technique (developed between 1969 and 1984 by Vernon Dvorak) is a widely used system to estimate tropical cyclone intensity (which includes tropical depression, tropical storm, and hurricane/typhoon/intense tropical cyclone intensities) based solely on visible and infrared satellite images. Within the Dvorak satellite strength estimate for tropical cyclones, there are several visual patterns that a cyclone may take on which define the upper and lower bounds on its intensity. The primary patterns used are curved band pattern (T1.0-T4.5), shear pattern (T1.5–T3.5), central dense overcast (CDO) pattern (T2.5–T5.0), central cold cover (CCC) pattern, banding eye pattern (T4.0–T4.5), and eye pattern (T4.5–T8.0). Both the central dense overcast and embedded eye pattern use the size of the CDO. The CDO pattern intensities start at T2.5, equivalent to minimal tropical storm intensity (40 mph, 65 km/h). The shape of the central dense overcast is also con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dropsonde
A dropsonde is an expendable weather reconnaissance device created by the National Center for Atmospheric Research (NCAR), designed to be dropped from an aircraft at altitude over water to measure (and therefore track) storm conditions as the device falls to the surface. The sonde contains a GPS receiver, along with pressure, temperature, and humidity (PTH) sensors to capture atmospheric profiles and thermodynamic data. It typically relays this data to a computer in the aircraft by radio transmission. Usage Dropsonde instruments are typically the only current method to measure the winds and barometric pressure through the atmosphere and down to the sea surface within the core of tropical cyclones far from land-based weather radar. The data obtained is usually fed via radio into supercomputers for numerical weather prediction, enabling forecasters to better predict the effects and intensity, based on computer-generated models using data gathered from previous storms under similar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atmospheric 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] |
List Of Category 2 Atlantic Hurricanes
Within the North Atlantic Ocean, a Category 2 hurricane is a tropical cyclone, that has 1-minute sustained wind speeds of between . Since records began in 1851, a total of 245 tropical cyclones have peaked at this intensity. Background Since HURDAT began in 1851, Atlantic hurricanes have been tracked. In 1971, the Saffir–Simpson scale was devised by two meteorologists. Category 2 was designed as the fourth-highest category on the scale. Systems 1850s , - , Five , , , , , , , , The Caribbean, Mexico, Southeastern United States , , , , , , , - , Eight , , , , , , , , Florida, Georgia , , , , , , , - , Four , , , , , , , , Texas , , , , , , , - , One , , , , , , , , Mexico , , , , , , , - , Two , , , , , , , , None , , , , , , , - , Two , , , , , , , , United States East Coast , , , , , , , - , Four , , , , , , , , The Caribbean, Mexico, Texas , , , , , , , - , Three , , , , , , , ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Category 5 Atlantic Hurricanes
A Category 5 Atlantic hurricane is a tropical cyclone that reaches Category 5 intensity on the Saffir–Simpson hurricane wind scale, within the Atlantic Ocean to the north of the equator. They are among the strongest tropical cyclones that can form on Earth, having 1-minute sustained wind speeds of at least . The United States National Hurricane Center currently estimates that a total of 38 tropical cyclones between 1851 and have peaked as Category 5 hurricanes. Background Within the Atlantic Ocean to the north of the Equator, hurricanes are officially monitored by the United States's National Hurricane Center (NHC), however, other meteorological services, such as Météo-France, the United Kingdom's Met Office and Environment Canada also monitor the basin. Within the region, a Category 5 hurricane is considered to be a tropical cyclone that has 1-minute mean maximum sustained wind speeds of or greater on the Saffir–Simpson hurricane wind scale at above ground. A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1926 Nassau Hurricane
The 1926 Nassau hurricane also known as the San Liborio hurricane or The Great Bahamas Hurricane of 1926, in Puerto Rico, was a destructive Category 4 hurricane that affected the Bahamas at peak intensity. Although it weakened considerably before its Florida landfall, it was one of the most severe storms to affect the Bahamian capital Nassau and the island of New Providence in several years until the 1928 Okeechobee hurricane, which occurred just two years later. The storm also delivered flooding rains and loss of crops to the southeastern United States and Florida. Being a slightly mid-range Category 4, this hurricane peaked at about 967 mbars, making it the least intense Category 4 Atlantic hurricane on record, especially for wind speeds of 140 mph. Meteorological history The system was first spotted east of the Lesser Antilles as a weak tropical storm on July 22. Moving northwest, the tropical storm passed near Dominica with winds of before entering the eastern Caribbe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1995 Atlantic Hurricane Season
The 1995 Atlantic hurricane season was an extremely active Atlantic hurricane season and is considered to be the start of an ongoing era of high-activity tropical cyclone formation. The season produced twenty-one tropical cyclones, nineteen named storms, as well as eleven hurricanes and five major hurricanes. The season officially began on June 1 and ended on November 30, dates which conventionally delimit the period of each year when most tropical cyclones develop in the Atlantic basin. The first tropical cyclone, Hurricane Allison, developed on June 2, while the season's final storm, Hurricane Tanya, transitioned into an extratropical cyclone on November 1. The very active Atlantic hurricane activity in 1995 was caused by La Niña conditions, which also influenced a very inactive Pacific hurricane season. There were four particularly destructive hurricanes during the season, including Luis, Marilyn, Opal and Roxanne. Hurricanes Luis and Marilyn both caus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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