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Annular tropical cyclone

Index Annular tropical cyclone

An annular tropical cyclone is a tropical cyclone that features a normal to large, symmetric eye surrounded by a thick and uniform ring of intense convection, often having a relative lack of discrete rainbands, and bearing a symmetric appearance in general. [1]

33 relations: American Meteorological Society, Atlantic hurricane, Atmospheric convection, Central dense overcast, Cirrus cloud, Colorado State University, Diurnal cycle, Entrainment (meteorology), Equivalent potential temperature, Eye (cyclone), Eyewall replacement cycle, Infrared, Knot (unit), Maximum sustained wind, National Hurricane Center, Outflow (meteorology), Pacific hurricane, Radius of maximum wind, Rainband, Reconnaissance aircraft, Rotational symmetry, Satellite imagery, Sea surface temperature, Subtropical ridge, Symmetry, Tropical cyclogenesis, Tropical cyclone, Tropical cyclone forecasting, Tropics, Troposphere, University of Wisconsin–Madison, Weather and Forecasting, Wind shear.

American Meteorological Society

The American Meteorological Society (AMS) is the premier scientific and professional organization in the United States promoting and disseminating information about the atmospheric, oceanic, and hydrologic sciences. Its mission is to advance the atmospheric and related sciences, technologies, applications, and services for the benefit of society.

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Atlantic hurricane

An Atlantic hurricane or tropical storm is a tropical cyclone that forms in the Atlantic Ocean, usually in the summer or fall.

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Atmospheric convection

Atmospheric convection is the result of a parcel-environment instability, or temperature difference, layer in the atmosphere.

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Central dense overcast

The central dense overcast, or CDO, of a tropical cyclone or strong subtropical cyclone is the large central area of thunderstorms surrounding its circulation center, caused by the formation of its eyewall.

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Cirrus cloud

Cirrus (cloud classification symbol: Ci) is a genus of atmospheric cloud generally characterized by thin, wispy strands, giving the type its name from the Latin word cirrus, meaning a ringlet or curling lock of hair.

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Colorado State University

Colorado State University (also referred to as Colorado State, State, and CSU) is a public research university located in Fort Collins, in the U.S. state of Colorado.

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Diurnal cycle

A diurnal cycle is any pattern that recurs every 24 hours as a result of one full rotation of the Earth around its own axis.

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Entrainment (meteorology)

Entrainment is a phenomenon of the atmosphere which occurs when a turbulent flow captures a non-turbulent flow.

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Equivalent potential temperature

Equivalent potential temperature, commonly referred to as theta-e \left(\theta_e \right), is a quantity that is conserved during changes to an air parcel's pressure (that is, during vertical motions in the atmosphere), even if water vapor condenses during that pressure change.

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Eye (cyclone)

The eye is a region of mostly calm weather at the center of strong tropical cyclones.

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Eyewall replacement cycle

Eyewall replacement cycles, also called concentric eyewall cycles, naturally occur in intense tropical cyclones, generally with winds greater than, or major hurricanes (Category 3 or above).

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Infrared

Infrared radiation (IR) is electromagnetic radiation (EMR) with longer wavelengths than those of visible light, and is therefore generally invisible to the human eye (although IR at wavelengths up to 1050 nm from specially pulsed lasers can be seen by humans under certain conditions). It is sometimes called infrared light.

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Knot (unit)

The knot is a unit of speed equal to one nautical mile per hour, exactly 1.852 km/h (approximately 1.15078 mph).

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Maximum sustained wind

The maximum sustained wind associated with a tropical cyclone is a common indicator of the intensity of the storm.

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National Hurricane Center

The National Hurricane Center (NHC) is the division of the United States' National Weather Service responsible for tracking and predicting weather systems within the tropics between the Prime Meridian and the 140th meridian west poleward to the 30th parallel north in the northeast Pacific Ocean and the 31st parallel north in the northern Atlantic Ocean.

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Outflow (meteorology)

Outflow, in meteorology, is air that flows outwards from a storm system.

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Pacific hurricane

A Pacific hurricane is a mature tropical cyclone that develops within the eastern and central Pacific Ocean to the east of 180°W, north of the equator.

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Radius of maximum wind

The radius of maximum wind (RMW) is the distance between the center of a cyclone and its band of strongest winds.

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Rainband

A rainband is a cloud and precipitation structure associated with an area of rainfall which is significantly elongated.

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Reconnaissance aircraft

A reconnaissance aircraft is a military aircraft designed or adapted to perform aerial reconnaissance.

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Rotational symmetry

Rotational symmetry, also known as radial symmetry in biology, is the property a shape has when it looks the same after some rotation by a partial turn.

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Satellite imagery

Satellite imagery (or spaceborne photography) are images of Earth or other planets collected by imaging satellites operated by governments and businesses around the world.

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Sea surface temperature

Sea surface temperature (SST) is the water temperature close to the ocean's surface.

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Subtropical ridge

The subtropical ridge, also known as the subtropical high or horse latitudes, is a significant belt of atmospheric high pressure situated around the latitudes of 30°N in the Northern Hemisphere and 30°S in the Southern Hemisphere.

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Symmetry

Symmetry (from Greek συμμετρία symmetria "agreement in dimensions, due proportion, arrangement") in everyday language refers to a sense of harmonious and beautiful proportion and balance.

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Tropical cyclogenesis

Tropical cyclogenesis is the development and strengthening of a tropical cyclone in the atmosphere.

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Tropical cyclone

A tropical cyclone is a rapidly rotating storm system characterized by a low-pressure center, a closed low-level atmospheric circulation, strong winds, and a spiral arrangement of thunderstorms that produce heavy rain.

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Tropical cyclone forecasting

Tropical cyclone forecasting is the science of forecasting where a tropical cyclone's center, and its effects, are expected to be at some point in the future.

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Tropics

The tropics are a region of the Earth surrounding the Equator.

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Troposphere

The troposphere is the lowest layer of Earth's atmosphere, and is also where nearly all weather conditions take place.

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University of Wisconsin–Madison

The University of Wisconsin–Madison (also known as University of Wisconsin, Wisconsin, UW, or regionally as UW–Madison, or simply Madison) is a public research university in Madison, Wisconsin, United States.

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Weather and Forecasting

Weather and Forecasting is a scientific journal published by the American Meteorological Society.

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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.

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Redirects here:

Annular Tropical Cyclone, Annular cyclone, Annular hurricane, Annular hurricanes, Annular typhoon, Pinwheel eye.

References

[1] https://en.wikipedia.org/wiki/Annular_tropical_cyclone

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