Hurricanes, also known as tropical cyclones¹ or typhoons (depending on the region), form over warm ocean waters near the equator. The key factors for their formation include:

Warm Ocean Water (≥26.5°C/80°F) – Provides energy through evaporation², fueling the storm.

Moist Air – Rising warm, moist air cools and condenses, forming clouds and releasing heat.

Low Wind Shear³ – Minimal⁴ wind variation with altitude allows the storm to grow vertically⁵.

Coriolis Effect – Earth’s rotation⁶ helps the storm spin (hurricanes do not form right at the equator where this effect is weak).

Pre-existing Disturbance⁷ – Often starts as a tropical wave or low-pressure area.

As warm air rises, it creates an area of low pressure beneath, sucking in more air and causing the system to rotate and intensify⁸.

飓风（在西北太平洋称“台风”，印度洋称“气旋”）的形成需要以下条件：

温暖的海洋（≥26.5°C） – 海水蒸发提供能量。

潮湿的空气 – 暖湿空气上升冷却，凝结成云并释放热量。

弱风切变 – 高空与低空风速差异小，利于风暴垂直发展。

科里奥利力 – 地球自转使风暴旋转（赤道附近因该力过弱无法形成飓风）。

初始扰动 – 通常源于热带低压或东风波。

暖空气上升形成低压区，周围空气不断涌入并旋转，最终发展成飓风。

注：飓风、台风、气旋本质相同，仅因发生地点不同而名称各异。