They are all tropical cyclones, but the name hurricane is used exclusively for those in the North Atlantic and the Pacific Northwest.
How do they form and why do they usually occur in this part of the world?
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The most common mechanism of hurricane formation in the Atlantic - which causes more than 60% of these phenomena - is a tropical wave.
When it reaches the Atlantic Ocean, the tropical wave may be the beginning of a hurricane, but in order for it to form, it needs energy sources, such as adequate humidity, heat and wind.
In particular, it is necessary that the...
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