Cyclone

                                                                        Cyclone

Large air mass rotating around a strong centre with low pressure is defined as Cyclone in meteorology.

Following are the characteristics of Cyclones:

  • The inward spiralling winds turn anti-clockwise in the Northern Hemisphere.
  • They turn clockwise in the Southern Hemisphere.
  • Every large-scale cyclone is centered on areas of low atmospheric pressure. 
  • The largest low-pressure systems are cold-core polar cyclones and extratropical cyclones of the largest scale (synoptic scale).
  • Cyclones with warm-core such as subtropical cyclones and astropical cyclones fall within the synoptic scale, according to the  National Hurricane Center glossary
  • Dust devils, tornadoes and mesocyclones,  lie within the smaller mesoscale.

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