What are Hurricanes?
What Makes Hurricanes Form?
Scientists don't know exactly why or how a hurricane forms. But they do know that two main ingredients are needed.
One ingredient is warm water. Warm ocean waters provide the energy a storm needs to become a hurricane. Usually, the surface water temperature must be 26 degrees Celsius (79 degrees Fahrenheit) or higher for a hurricane to form.
The other ingredient is winds that don't change much in speed or direction as they go up in the sky. Winds that change a lot with height can rip storms apart. ( Source: NASA.gov )
What Are the Parts of a Hurricane?
- Eye : The eye is the "hole" at the center of the storm. Winds are light in this area. Skies are partly cloudy, and sometimes even clear.
- Eye wall : The eye wall is a ring of thunderstorms. These storms swirl around the eye. The wall is where winds are strongest and rain is heaviest.
- Rain bands: Bands of clouds and rain go far out from a hurricane's eye wall. These bands stretch for hundreds of miles. They contain thunderstorms and sometimes tornadoes.