Tropical cyclone | Definition, Causes, Formation, and Effects
Oct 31, 2024 · 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.
Tropical cyclone - Formation, Paths, Impacts | Britannica
Oct 31, 2024 · Formation. The fuel for a tropical cyclone is provided by a transfer of water vapour and heat from the warm ocean to the overlying air, primarily by evaporation from the sea surface. As the warm, moist air rises, it expands and cools, quickly becoming saturated and releasing latent heat through the condensation of water vapour. The column of ...
Climate - Tropical Cyclone, Formation, Wind | Britannica
Sep 13, 2024 · Once a tropical cyclone has formed, it usually follows certain distinct stages during its lifetime. In its formative stage the winds are below hurricane force, and the central pressure is about 1,000 millibars, or 750 mm (29.53 inches) of mercury.
Tropical cyclone - Location, Patterns, Forecasting | Britannica
Oct 31, 2024 · Tropical cyclone - Location, Patterns, Forecasting: Tropical oceans spawn approximately 80 tropical storms annually, and about two-thirds are severe (category 1 or higher on the Saffir-Simpson scale of intensity). Almost 90 percent of these storms form within 20° north or south of the Equator.
tropical cyclone - Students | Britannica Kids | Homework Help
For a tropical cyclone to form, the temperature of the surface layer of ocean water must be 80 °F (26.5 °C) or warmer. A tropical cyclone gains fuel when water vapor and heat from the warm ocean transfers to the air. This transfer primarily occurs through evaporation from the sea surface.
Tropical cyclone - Tracking, Forecasting, Impacts | Britannica
4 days ago · The forecast model takes into account seasonal trends in factors related to tropical cyclone formation such as the presence of El Niño or La Niña oceanic conditions (see the section below), amount of rainfall over Africa, winds in the lower stratosphere, and atmospheric pressure and wind tendencies over the Caribbean. Based on these factors ...
typhoon - Students | Britannica Kids | Homework Help
Tropical cyclones—intense circular storms that originate over tropical oceans—are called typhoons when they occur in the western North Pacific Ocean around the Philippines, Japan, and China.
Super Typhoon Haiyan | 2013, Northern Pacific Ocean | Britannica
Super Typhoon Haiyan, massive and highly destructive storm in the North Pacific Ocean that affected Palau, the Philippines, Vietnam, and China during early November 2013. The tropical cyclone produced high winds, coastal storm surges, heavy rains, and flooding in …
Super Typhoon Haiyan - Students | Britannica Kids | Homework Help
The tropical cyclone produced high winds, coastal storm surges, heavy rains, and flooding in the land areas over which it passed. By far the worst-hit region was the central Philippines, where the storm produced widespread devastation and killed thousands of people.
tropical cyclone - Kids | Britannica Kids | Homework Help
A tropical cyclone is a circular storm that forms over warm oceans. When a tropical cyclone hits land, it brings heavy rains and strong winds. The winds can destroy buildings and rip out trees by their roots. Tropical cyclones have different names around the world.