Severe Weather

Front

What type of cloud does a tornado begin as?

Back

A tornado begins as a funnel cloud that pokes through the bottom of a cumulonimbus cloud.

Front

What is a large, rotating low-pressure system that forms over warm ocean waters near the equator?

Back

A hurricane.

Front

What is the area in the United States where about 75% of the world's tornadoes occur?

Back

Tornado Alley.

Front

What generates winds in the atmosphere?

Back

Winds are generated when air flows from a high pressure area into a low pressure area.

Front

What is the most dangerous aspect of a hurricane that comes ashore?

Back

The storm surge.

Front

What type of severe weather is characterized by rotating columns of air?

Back

Tornado.

Front

What is the calm center of a hurricane called?

Back

The eye.

Front

What is the term for the boundary between two different air masses?

Back

Front.

Front

What type of storm is formed by a rapid upward movement of warm, moist air?

Back

Thunderstorm.

Front

What is the scale used to measure tornado intensity?

Back

The Enhanced Fujita Scale.