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Tropical cyclones form over warm, tropical oceans.
The combination of heat and moisture, along with the right wind conditions, can create a new tropical cyclone.

spaceplace.nasa.gov/hurricanes/en

Hurricanes are the most violent storms on Earth. People call these storms by other names, such as typhoons or cyclones, depending on where they occur.

scijinks.gov/hurricane

Hurricanes are the most violent storms on Earth. They form near the equator over warm ocean waters. Actually, the term hurricane is used only for the large ...

eo.ucar.edu/kids/dangerwx/hurricane3.htm

Each hurricane lasts for over a week, moving 10-20 miles per hour over the open ... To do this, they typically form between 5 to 15 degrees latitude north and ...

www.ask.com/youtube?q=How+Do+Hurricanes+Form%3F&v=Wk_FVXVnE2I
Nov 22, 2013 ... BBC Weather How do hurricanes form .... weather forecasters to describe what goes on and also saying why a hurricane can be so devastating!

eschooltoday.com/natural-disasters/hurricanes/how-do-hurricanes-form.html

A hurricane is simply an advanced form of a tropical storm, which would have started out as a tropical depression over warm ocean waters. Find out more.

www.livescience.com/3815-hurricanes-form.html

May 27, 2005 ... How hurricanes form, and the warm water they need.

www.tropicalweather.net/how-do-hurricanes-form.html

Hurricanes usually form in the summer or early autumn when several key ... During the winter and spring, upper air winds are hostile, and usually do not allow ...

www.learnnc.org/lp/editions/cede_hurricanes/2

Hurricanes begin when areas of low atmospheric pressure move off Africa and into the Atlantic, where they grow and intensify in the moisture-laden air above ...

www.bbc.co.uk/schools/gcsebitesize/geography/weather_climate/weather_human_activity_rev2.shtml

A secondary school revision resource for GCSE Geography with information about how weather affects human activity.