In meteorology, a cyclone (/ ˈ s aɪ. k l oʊ n /) is a large air mass that rotates around a strong center of low atmospheric pressure, counterclockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere as viewed from above (opposite to an anticyclone). [1] [2] Cyclones are characterized by inward-spiraling winds that rotate about a zone of low pressure.

2025年3月29日 · cyclone, any large system of winds that circulates about a centre of low atmospheric pressure in a counterclockwise direction north of the Equator and in a clockwise direction to the south. Cyclonic winds move across nearly all regions of the Earth except the equatorial belt and are generally associated with rain or snow. Also occurring in much the same areas are anticyclones, wind systems ...

2025年4月5日 · Tropical cyclone, an intense circular storm that originates over warm tropical oceans and is characterized by low atmospheric pressure, high winds, and heavy rain. Also called typhoons and hurricanes, cyclones strike regions as far apart as the Gulf Coast of North America, northwestern Australia, and eastern India.

2023年10月19日 · Tropical Cyclone Amanda. The names of the powerful storms that form in the waters of the Atlantic and Pacific—whether hurricane, cyclone, or typhoon—depends on where they form. Tropical Cyclone Amanda was a category 4 on the Saffir-Simpson scale imaged by NASA’s Aqua satellite. NASA image from Jeff Schmaltz

2025年2月3日 · A cyclone is a pattern of winds (or air mass) that circulates a low-pressure system.It rotates counterclockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere. It is typically associated with wet and stormy weather. An anticyclone is a pattern of winds (or air mass) that circulates a high-pressure system.It rotates clockwise in the Northern Hemisphere and counterclockwise ...

Understanding Cyclones. Cyclones can be broadly classified into two main types: Tropical Cyclones; Extratropical Cyclones.; key characteristics. Tropical cyclones, often referred to as hurricanes or typhoons, are characterized by a well-defined eye at the center and spiral bands of thunderstorms.They thrive in warm ocean waters, deriving energy from heat and moisture.

2019年4月29日 · Types of cyclones include tropical cyclones, extratropical cyclones and tornadoes. A tropical cyclone is a rotating low-pressure weather system that has organized thunderstorms but no fronts. They form over warm ocean waters. Tropical cyclones with maximum sustained surface winds of less than 39 mph are called tropical depressions.

A cyclone is defined as a powerful storm containing strong winds and rains. It is formed when the warm and moist air rises making space for cool air in low-pressure areas. To learn more about the types of cyclones and the different names of cyclones, click here.

2018年9月14日 · A tropical cyclone is a generic term used by meteorologists. It means a rotating, organised system of clouds and thunderstorms that originates over tropical or subtropical waters, according to the ...

2023年3月14日 · Cyclones. In meteorology, a cyclone is described as a large volume of air that rotates around a strong center of low barometric pressure. Distinguished by the inward-spiraling winds that circulate about a low-pressure zone, cyclones move in a counterclockwise direction in the Northern Hemisphere and a clockwise direction in the Southern Hemisphere. . Except for the Equatorial belt region, the ...