A cyclone is an area of low atmospheric pressure characterized by rotating winds and ascending air. For the most part, weather systems are classified according to wind speed.
A tropical disturbance is an organized system that originates in the tropics or subtropics that holds together for at least 24 hours. A tropical depression is a tropical cyclone that has a maximum sustained wind speed of 38 mph. A tropical storm is a tropical cyclone with maximum sustained winds of 73 mph. A hurricane is a tropical cyclone with maximum winds of at least 74 mph. A commonality of all these storms is that they are organized and produce "organized convection", for example, a thunderstorm.
Storms in different parts of the world may be the same type of disturbance, they are just referred to by different names. Almost all cyclones originate in the tropics.
No comments:
Post a Comment