They form over warm oceans of at least 30° C. The water evaporates easily and rises quickly as water vapour as a result of the warm waters. As the water vapour hits the cooler air it forms into water droplets of rain in storm clouds. When the heat moves quick it creates a spinning pattern around the center of the storm clouds which becomes the eye. Stronger winds move it across the sea where it expands its width and become a bigger threat by gathering more warm moist air. This also increases the speed and sucking power. Once the wind speed reaches 120 km per hour it is called a hurricane and given a name so it is easy to identify.
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