Visual Dictionary
Subscribe
The Visual
Virtual Human Body
Language:
English
French
Spanish
Look up an image:
Explore by theme
About the Visual
Books
Games
HOME
>
Earth
>
meteorology
>
tropical cyclone
>
tropical cyclone
tropical cyclone
Low-pressure zone that forms in the intertropical region and is marked by violent precipitation and swirling winds of 120 to 300 km/h.
See tropical cyclone in :
french
|
spanish
low-pressure area
A rising column of air causes a decrease in air pressure on the ocean’s surface.
measure of air pressure
spiral cloud band
clouds of vertical development
eye
Relatively calm zone in the center of the cyclone, with light winds and very few clouds; it is about 30 km in diameter.
rising warm air
A hot air column forms when the ocean’s surface is warmed by the Sun.
heavy rainfall
stormy sky
rain forms
subsiding cold air
Cool air that reaches the top of the clouds and once again descends, becoming warmer as it becomes more compressed.
convective cell
Phenomenon formed by hot humid air that rises and condenses to form a cloud, and a descending current of cold air.
eye wall
Thick layer of cloud that swirls around the eye; it has the most powerful winds (up to 300 km/h) and the most intense precipitation.
high-pressure area
Column of ascending air that causes a rise in upper air pressure, at the top of the most developed clouds.
measure of air pressure
prevailing wind
It moves the cyclone forward at an average speed of 25 km/h.
measure of wind direction
measure of wind strength