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Tropical cyclones form where heat and moisture from the surface of the ocean interact with a wind pattern that spirals air inward. The water vapor condenses into storm clouds which are further fueled by the heat and wind.

news.nationalgeographic.com/2016/10/hurricanes-facts-storms-weather-science

Oct 6, 2016 ... WATCH: Hurricanes are massive storms with deadly force. Find out how they form, and what's being done to better predict their impact.

www.weatherquestions.com/What_causes_hurricanes.htm

May 29, 2013 ... Brief, simplified description of the causes of hurricanes.

www.telegraph.co.uk/science/0/causes-hurricane

Dec 1, 2016 ... Also known as a typhoon or cyclone, a hurricane is created when rising warm water vapour forms a cloud with low pressure beneath, causing ...

spaceplace.nasa.gov/hurricanes/en

Hurricanes are the most violent storms on Earth. ... Another way to say the same thing is that the warm air rises, causing an area of lower air pressure below.

www.mnn.com/earth-matters/translating-uncle-sam/stories/what-causes-hurricanes

Jul 21, 2010 ... Here's a look at why, where and when hurricanes form, and what you can do to be ready for one.

www.ducksters.com/science/earth_science/hurricanes.php

If there is enough warm water, the cycle will continue and the storm clouds and wind speeds will grow causing a hurricane to form. Parts of a Hurricane.

www.tropicalweather.net/what-causes-hurricanes.html

The causes and effects of hurricane formation. A discussion of the preconditions and mechanisims of hurricane formation.

www.reference.com/science/causes-hurricane-form-e42fb7d00d2d5f46

Hurricanes form when rising warm, moist air displaces colder air high in the atmosphere. The cold air drops down on all sides of the warm spot, swirling slightly ...

www.scientificamerican.com/article/why-do-we-have-a-hurricane-season

Near the equator, large-scale convection causes air to rise. ... Also, the movement of hurricanes helps export energy to the higher latitudes. Thus, the hurricane ...