How Are Cyclones Made?

••• Comstock Images/Comstock/Getty Images

A cyclone is a storm that involves the movement of warm, high-pressure air and cooler, low-pressure air. This movement of air causes a rotation that picks up speed and creates a funnel.

Where they Begin

Cyclones only form over masses of warm water, like ocean water near the equator. Warm, moist air rising is what begins the cyclonic process.

How They Build

Cooler air rushes in to fill the void left by the rising warmer air. This air warms and becomes moist as well, allowing it to rise. More cool air rushes in to fill the void.

Eye Formation

The warm, moist air cools as it rises higher into the air and forms clouds. As the process continues it begins to pick up speed and an eye forms in the center. The eye is the lowest pressure spot in the storm.


This process is officially called a cyclone when wind speeds reach 74 mph.


When cyclones hit land the process begins to slow because they no longer have a stream of warm air to “feed” them. However, they take an extraordinary amount of time to dissipate completely.

Related Articles

What Weather Conditions Create a Hurricane
Which Types of Fronts & Air Masses Bring a Hurricane?
Two Air Masses That Will Cause a Tornado
What Type of Plate Boundary Is Associated With Rift...
About Minor & Major Landforms
A Major Difference Between Cyclones & Anticyclones...
What Are the Characteristics of a Tropical Storm?
What Happens When a Cold Front Meets a Warm Front?
Barometric Pressure Vs. Wind Speed of a Hurricane
How Clouds Are Made
What Happens When Air Pressure & Temperature Drop?
How Does a Hurricane Form?
How Does Fog Form?
Kinds of Land Topography
Types of Breezes
Why Is the Eye of a Hurricane Calm?
What Is in the Outer Band of a Hurricane?
The Stages of Mid-Latitude Cyclones
What Happens When a Hurricane Occurs?
The Difference Between Tornadoes & Hurricanes