How Tropical Cyclones Form

Learn how hurricanes, typhoons, and cyclones develop.

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Warm Ocean Water

Tropical cyclones require sea surface temperatures above 26.5°C.

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Coriolis Effect

The Earth's rotation causes cyclones to spin.

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Saffir-Simpson Scale

Hurricanes are rated Category 1-5 based on sustained wind speed.

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Storm Naming

Tropical cyclones are named from pre-determined lists.

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Life Cycle

A cyclone starts as a disturbance and may intensify.