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When the wind speed is greater than 74 miles per hour, it is considered a hurricane, category one.when the wind exceed 119 km/h the storms is classified as hurricane.

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13y ago
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13y ago

In order to become a hurricane a tropical storm needs to have sustained wind speeds of 75 mph or more.

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12y ago

Sustained winds speed. When a tropical storm's wind speed reaches 74 mph it is considered a hurricane.

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Q: What factor determines when a tropical storm becomes a hurricane?
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