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  1. Tropical cyclone | Definition, Causes, Formation, and Effects | Britannica

    Dec 26, 2025 · 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 …

  2. Cyclone | Wind, Pressure & Rainfall | Britannica

    Dec 12, 2025 · 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.

  3. Tropical cyclone - Formation, Paths, Impacts | Britannica

    Dec 26, 2025 · Tropical cyclone - Formation, Paths, Impacts: A circulation system goes through a sequence of stages as it intensifies into a mature tropical cyclone. The storm begins as a tropical …

  4. Climate - Tropical Cyclone, Formation, Wind | Britannica

    Dec 23, 2025 · A tropical cyclone may regenerate in higher latitudes as an extratropical depression, but it loses its identity as a tropical storm in the process. The typical lifetime of a tropical cyclone from its …

  5. Bomb cyclone | Description, Formation and Development, & Facts

    Dec 31, 2025 · Although bomb cyclones can form throughout the year in both the Northern and Southern hemispheres, they receive the most attention from meteorologists and media outlets during the …

  6. Tropical cyclone - Tracking, Forecasting, Impacts | Britannica

    Nov 26, 2025 · Although satellite images provide general information on the location and intensity of tropical cyclones, detailed information on a storm’s strength and structure must be obtained directly, …

  7. tropical cyclone - Students | Britannica Kids | Homework Help

    A tropical cyclone, also called a hurricane or typhoon, is an intense circular storm that originates over warm tropical oceans. It is characterized by low atmospheric pressure, high winds, and heavy rain.

  8. Tropical cyclone - Location, Patterns, Forecasting | Britannica

    Dec 26, 2025 · 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 …

  9. tropical cyclone - Kids | Britannica Kids | Homework Help

    If winds blow faster than 74 miles (119 kilometers) per hour, the tropical storm becomes a cyclone. From above, a tropical cyclone looks like a huge disk of clouds.

  10. How Do Cyclones Form? | Britannica

    Because of information gathered by satellites observing Earth, we know that cyclones form in low pressure zones over warm intertropical seas. A tropical depression may intensify and evolve into a …