Formation of Tropical Storms: Natural Hazard Challenges: Geography: GCSE (9:1)

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14 Terms

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Tropical Disturbance

A cluster of thunderstorms near the equator that moves with the prevailing winds.

<p>A cluster of thunderstorms near the equator that moves with the prevailing winds.</p>
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Tropical Depression

A storm near the equator with winds moving in a circle at speeds of up to 38 miles per hour.

<p>A storm near the equator with winds moving in a circle at speeds of up to 38 miles per hour.</p>
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Tropical Storm

A localized, very intense low-pressure wind system, forming over tropical oceans and with winds of hurricane force.

<p>A localized, very intense low-pressure wind system, forming over tropical oceans and with winds of hurricane force.</p>
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Humidity

The amount of water vapor in the air. For a tropical storm to form, this has to be high.

<p>The amount of water vapor in the air. For a tropical storm to form, this has to be high.</p>
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27 degrees

The temperature of the ocean surface to a depth of at least 50 metres for a tropical storm to form.

<p>The temperature of the ocean surface to a depth of at least 50 metres for a tropical storm to form.</p>
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Convectional uplift

Rapid uplift of air that occurs when warm air rises within an unstable body of air

<p>Rapid uplift of air that occurs when warm air rises within an unstable body of air</p>
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Coriolis Force

Essential component in formation of tropical storm to set up the spiralling vortex.

<p>Essential component in formation of tropical storm to set up the spiralling vortex.</p>
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Vortex

Center of turbulence in a tropical storm.

<p>Center of turbulence in a tropical storm.</p>
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Cumulonimbus clouds

Large anvil shaped clouds which form the clouds within the storm vortex.

<p>Large anvil shaped clouds which form the clouds within the storm vortex.</p>
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Eye wall

The doughnut-shaped area of intense cumulonimbus development and very strong winds that surrounds the eye of a hurricane.

<p>The doughnut-shaped area of intense cumulonimbus development and very strong winds that surrounds the eye of a hurricane.</p>
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Eye

The calm, low pressure center of a hurricane.

<p>The calm, low pressure center of a hurricane.</p>
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Saffir-Simpson Scale

Classifies hurricanes according to wind speed, air pressure in the center, and potential for property damage.

<p>Classifies hurricanes according to wind speed, air pressure in the center, and potential for property damage.</p>
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Very low pressure

Tropical Storms have this type of air pressure

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Descending air

The cause of the eye of the storm