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.
Millions of people live, work, and vacation in
The Atlantic Basin is dominated by the
Subtropical Ridge to the north and the
Intertropical Convergence Zone to the south.
The ITCZ forms into distinct areas of disturbed weather known as Tropical Waves.
These Waves will sometimes intensify into Tropical Depressions, Tropical Storms, and even Hurricanes.
Tropical Waves consist of thunderstorms loosely organized along an axis of low pressure
Tropical Depressions have storms clustered around a central low pressure at the surface.
Tropical Storms are more organized with the thunderstorms spiralling inward toward the center in distinct rainbands.
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.
Hurricanes are warm core, barotropic systems.
They are heat engines which convert…
…thermal energy, in the form of warm, moist air
and convert it into….
…mechanical energy, in the form of driving winds and heavy ocean swell.
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.
Tropical Storms can form anytime of the year. However, 98% of activity occurs within the hurricane season (June 1 - November 30).