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Hurricane Melissa is approaching Jamaica as a Category 5 storm with 180 mph winds.

A recent study suggests global warming is fueling more intense and rapidly strengthening hurricanes.

Scientists have debated adding a "Category 6" to the Saffir-Simpson scale for storms with winds over 192 mph.

The already dangerously powerful Category 5 hurricane Melissa surged up to 180 mph maximum sustained winds with gusts over 210 mph Tuesday morning, Oct. 28, according to an update from the National Hurricane Center, just hours away from slamming into Jamaica.

Like many recent hurricanes in the Atlantic basin, Melissa exploded from a tropical storm to a major hurricane in under a day. At the 180 mph threshold it's already heading up into record territory, and if it reache

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