Question

what is tornado and how it is different from cyclone

Answer 1

 CycloneTornadoDefinitionA Cyclone is an area of closed, circular fluid motion rotating in the same direction as the Earth. Most circulations are centered on areas of low atmospheric pressure. Mostly take place on waterA tornado is a violent rotating column of air that is contact with the ground and a cumulonimbus cloudCompositionAir, water, moistureWater droplets, dust, debrisShapeClosed, circular fluid motion. The center is known as an eyeCylindrical columns/pillars, wedgesTypesExtratropical cyclones, Subtropical cyclones and Tropical cyclonesLandspout, multiple vortex tornado, and waterspoutSpeedTropical Cyclones can range anywhere from 32 mph to 157 mphAnywhere between 40mph and 360mphRotationClockwise in the Southern Hemisphere; counter-clockwise in the Northern HemisphereClockwise in the Southern Hemisphere; counter-clockwise in the Northern HemisphereScale for MeasurementBeaufort Scale and Saffir-Simpson scale and may vary in different countriesFujita (F), Enhanced Fujita (EF), and TORRO (T) ScaleSizeHas a diameter on the scale of hundreds of kilometersHas a diameter on the scale of hundreds of metersHow are they formedComprised of several to dozens of convective stormsProduced from a single convective storm (i.e. a thunderstorm or cumulonimbus cloud)Required ConditionRequire very low values of tropospheric vertical shear in order to form and grow, and generated in regions of near zero horizontal temperature gradientRequires substantial vertical shear of the horizontal winds to provide ideal conditions for tornado genesis, and usually happens in regions of large temperature gradientLifeDaysMinutes or hours