General term for large cells of moisture-laden air that rotate around
an area of low pressure
Can be Tropical or Extratropical
Tropical Cyclones form over warm tropical or subtropical ocean
waters, typically between 5-20 degrees latitude
Extratropical Cyclones develop over land or water between 30-70
o Can be developed anywhere
Sources of Energy Tropical Cyclones:
Warm ocean water and the latent heat that is released as rising air
condenses to form clouds.
Warm air rises to form a spiraling pattern of clouds
The rising warm air hearts the entire core of the storm
Contrast between air masses on opposites side of a front.
Fed by cold air at the surface and a flow of cold, dry air aloft.
The resulting storm has a cool core from bottom to top
o Usually in Northern Pacific o Cold weather cyclones
o Tend to track into coast line of Alaska, BC, etc
o Tends to produce warm weather and heavy rainfall