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What is Tropical Cyclone?

A tropical cyclone, also called a hurricane, is a severe tropical storm with wind speeds in excess of 74 mph. Known as a “tropical depression” when wind speeds are 38 miles per hour or less, tropical cyclones are characterized by a low-pressure center and can produce torrential rains, high winds and storm surges.

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Glossary

A line on a weather map connecting points of equal atmospheric pressure, used to identify high and low-pressure systems.

A very cold high pressure that originates over the Arctic Ocean.

The heating of the Earth by the sun causes daily changes in both the direction and speed of the wind. During the day, ground...

Precipitation in the form of small balls or lumps of ice that form in thunderstorm updrafts and fall to the ground.

A middle cloud type within the B family in the international cloud classification. These are shaded clouds that can be white...

A prefix used in cloud nomenclature to describe middle-altitude clouds that form between 6,500 and 20,000 feet, such as altostratus...

A closed low, also known as a cut-off low, is a low-pressure system that is entirely isolated from the main atmospheric circulation...

The process by which a solid changes directly into a gas without first becoming a liquid, such as ice turning into water...

An instrument used to measure the speed, force, and sometimes the direction of the wind. It can be cup or pressure tube anemometers....

A strong, downward wind caused by a localized column of air sinking rapidly, often resulting in damage similar to that caused...