Cyclone - Wikipedia
While tropical cyclones can produce extremely powerful winds and torrential rain, they are also able to produce high waves and a damaging storm surge. [47] Their winds increase the wave size, and in so doing they draw more heat and moisture into …
Tropical cyclone intensity scales - Wikipedia
Tropical cyclones are defined as being warm cored, non-frontal synoptic cyclones, that develop over tropical or subtropical waters, with organized atmospheric convection and have a definite cyclonic surface wind circulation. They are classified by the wind speeds located around the circulation centre and are ranked, by the World Meteorological Organization's Regional …
Cyclone | Wind, Pressure & Rainfall | Britannica
2024年12月23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.
Tropical cyclone - Wikipedia
Cyclone refers to their winds moving in a circle, whirling round their central clear eye, with their surface winds blowing counterclockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere.
Tropical cyclone | Definition, Causes, Formation, and Effects
2 天之前 · What is a tropical cyclone? A tropical cyclone is an intense circular storm that originates over warm tropical oceans. It is also called a hurricane or a typhoon. It is characterized by low atmospheric pressure and heavy rain, and its winds exceed 119 km (74 miles) per hour. When do tropical cyclones occur?
Tropical Cyclone Classification | National Oceanic and …
2023年10月19日 · If maximum sustained winds reach 74 mph (119 km/h), the cyclone is called: A hurricane in the North Atlantic Ocean, the Northeast Pacific Ocean east of the dateline, and the South Pacific Ocean east of 160°E.
What is a Hurricane, Typhoon, or Tropical Cyclone?
A tropical cyclone is the generic term for a non-frontal synoptic scale low-pressure system over tropical or sub-tropical waters with organized convection (i.e. thunderstorm activity) and definite cyclonic surface wind circulation (Holland 1993).
Tropical Cyclone Introduction | National Oceanic and Atmospheric ...
2003年9月15日 · Tropical cyclones occur from April to December, with a double peak of activity in May and November. The severe cyclonic storms (>74 mph / 119 km/h winds) occur almost exclusively from April to June and again in late September to early December. Southwest Indian basin (From Africa to about 100°E)
Tropical Cyclone Climatology - National Hurricane Center
2024年11月5日 · Tropical cyclones rotate counterclockwise in the Northern Hemisphere. They are classified as follows: Tropical Depression: A tropical cyclone with maximum sustained winds of 38 mph (33 knots) or less. Tropical Storm: A tropical cyclone with maximum sustained winds of 39 to 73 mph (34 to 63 knots).
Tropical cyclone - Ranking, Naming, Intensity | Britannica
6 天之前 · Tropical cyclone - Ranking, Naming, Intensity: A wide range of wind speeds is possible between tropical cyclones of minimal strength and the most intense ones on record, and tropical cyclones can cause damage ranging from the breaking of tree limbs to the destruction of mobile homes and small buildings.