Question: what are the basic requirements for the formation of a cyclone?
Answer: Water temperatures of at least 26.5 °C (80°F) down to a depth of at least 50 m (150 feet). ...  Rapid cooling with height. ...  High humidity, especially in the lower-to-mid troposphere. ...  Low wind shear. ...  Distance from the equator. ...  A pre-existing system of disturbed weather.