Hurricanes are heat engines, drawing their energy from warm sea surface temperatures, generally requiring waters above 26. The Barrier of Cool Currents While the atmosphere sets the stage, the ocean provides the final curtain.
Why Upper Level Winds Prevent Hurricanes in South America
The coastline is bathed by the South Equatorial Current, which pushes warm water westward, but this current does not extend far south along the coast. However, the ITCZ generally hugs the northern edge of the Amazon Basin, placing it north of the equator for most of the year.
Hurricanes are among the most powerful weather systems on the planet, capable of reshaping coastlines and disrupting lives with terrifying speed. 5°C (80°F) to sustain themselves.
Upper Level Winds Over South America Prevent Hurricane Formation
This force, caused by the Earth's rotation, is what imparts the spin necessary for a tropical depression to organize its structure and intensify into a hurricane. The upper-level atmosphere over South America is characterized by strong winds and high wind shear—the change in wind speed or direction with height.
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