### weather | cyclone:

Tropical cyclone
* More tropical cyclones form in the tropical North Pacific than anywhere else in the world.
* Most tropical cyclone contains wind
* Most tropical cyclone produces heavy rainfall
* Most tropical cyclones approach the coast of southern China on a west-northwestward track
  - create strong winds and heavy rains
  - weaken as they come ashore or track poleward over colder ocean water
* Some tropical cyclone causes monster storms
* Some tropical cyclone occurs in temperate zones
  * Most tropical cyclones create strong winds and heavy rains. While some tropical cyclones stay out in the sea, others pass over land, which can be dangerous because they can cause a lot of damage.
  * form when warm, moist ocean air rises. The Coriolis effect causes the winds to rotate. They usually move westward in the tropics, and later move north or south into the temperate zone
* are also a seasonal occurrence
  - among the most destructive natural phenomena
  - classified into different categories depending on their strength and location
  - destructive weather phenomena
  - fueled by the energy from warm tropical waters
  - hurricanes or tropical storms
* are like engines that require warm, moist air as fuel
  - giant engines that use warm, moist air as fuel
  - low pressure storms in the tropics
  - particularly damaging
  - ranked according to their maximum winds using several scales
* bring heavy rainfall.
* can bring high wind, higher waves and flood rains in summer
  - occur during the wet season, usually forming within an active monsoon trough
  - retain their force as far inland as Ontario
  - sometimes degenerate back into a tropical wave
* come in a variety of strengths and sizes, and are classified by peak wind speed.
* destroy nests and accelerate habitat degradation.
* develop from tropical depressions.
  - season rainfall
* form as a result of significant convective activity, and are warm core
  - in tropical ocean areas, and some move from there into the temperate zone
  - over all the world's tropical oceans except the South Atlantic
* has wind.
* pose significant risk well inland due to fresh water flooding.
* produce much of the rainfall in the Pacific area.
* tend to follow seasonal tracks.
* threaten the northern, mountainous parts of the country.
* vary in both size and intensity.
+ Tropical cyclone scales
  * Tropical cyclones are ranked according to their maximum winds using several scales. These scales are provided by several bodies, including the World Meteorological Organization, the National Hurricane Center, and the Bureau of Meteorology. The National Hurricane Center uses the Saffir-Simpson Hurricane Scale for hurricanes in the eastern Pacific and Atlantic basins. Australia uses a difference set of tropical cyclone categories for their region. The use of different definitions for maximum sustained wind creates additional confusion into the definitions of cyclone categories worldwide
  - cyclone, Classifications
  * Tropical cyclones are classified into different categories depending on their strength and location. The National Hurricane Center which observes hurricanes in the Atlantic Ocean and Eastern and Central Pacific Ocean classify them into the Saffir-Simpson Hurricane Scale
  - wave, Atlantic: Weather
  * Tropical cyclones can sometimes degenerate back into a tropical wave. This normally happens if upper-level wind shear is too strong. The storm can redevelop if the upper level shear decreases or stops. If a tropical wave is moving quickly, it can have strong winds of over tropical storm force, but is not considered a tropical storm unless it has a closed circulation
+ Tropics: Geography
  * Tropical cyclones form in tropical ocean areas, and some move from there into the temperate zone. Tropical plants and animals are native to the tropics.