A typhoon is a low-pressure vortex that appears over tropical or subtropical ocean surfaces—a powerful and profound tropical weather system.
When the ocean surface is exposed to sunlight, it generates strong cumulonimbus clouds. The hot air within these cumulonimbus clouds ascends, while cooler surrounding air continuously flows in to replace it, rising again upon heating, forming intense convection—this is a tropical depression.
As the rising hot air carries water vapor to the top of the cloud mass, it evaporates, enlarging the cloud cluster while intensifying this phenomenon.
Eventually, when the expanded cloud mass becomes large enough, it rotates under the influence of the Earth's magnetic field and axial rotation. Once the intensity reaches a certain threshold, the tropical depression evolves into a typhoon.
Because typhoons rotate, they naturally move along atmospheric circulation, driven by the summer monsoon toward the Asian Continent.
