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Hurricane Alley. Millions of people live, work, and vacation in Hurricane Alley. The Atlantic Basin. The Atlantic Basin is dominated by the Subtropical Ridge to the north and the Intertropical Convergence Zone to the south. The Atlantic Basin.

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Hurricane Alley

Millions of people live, work, and vacation in

Hurricane Alley


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The Atlantic Basin

The Atlantic Basin is dominated by the

Subtropical Ridge to the north and the

Intertropical Convergence Zone to the south.


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The Atlantic Basin

The ITCZ forms into distinct areas of disturbed weather known as Tropical Waves.


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The Atlantic Basin

These Waves will sometimes intensify into Tropical Depressions, Tropical Storms, and even Hurricanes.


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Tropical Waves

Tropical Waves consist of thunderstorms loosely organized along an axis of low pressure


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Tropical Depressions

Tropical Depressions have storms clustered around a central low pressure at the surface.


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Tropical Storms

Tropical Storms are more organized with the thunderstorms spiralling inward toward the center in distinct rainbands.


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Hurricanes

Hurricanes have thunderstorms organized into a ring around the clear, calm eye known as the eyewall. The spiraling rainbands sometimes form into an outer eyewall.


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Hurricane Heat Engine

Hurricanes are warm core, barotropic systems.

They are heat engines which convert…


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Hurricane Heat Engine

…thermal energy, in the form of warm, moist air

and convert it into….


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Hurricane Heat Engine

…mechanical energy, in the form of driving winds and heavy ocean swell.


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Hurricane Heat Engine

The exhaust products of the engine are the cool, dry air that produces the cirrus shield of the Central Dense Overcast, and the torrential rains that remove the liquid water from the airflow.




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Hurricane Season

Tropical Storms can form anytime of the year. However, 98% of activity occurs within the hurricane season (June 1 - November 30).


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