Both cyclones and tornadoes are different form of storms that can cause damage. Tornadoes are columns of air violently rotating around an axis, which is in contact with ground earth and cumulonimbus cloud, or rarely with cumulus cloud. It can be explained as a cyclone with a twisted vortex of high speed wind which is violent and touches the earth. A tornado has a funnel-like column of cold air which descends from a cloud.
Tornadoes have smaller diameter, cyclones have wider circumference. The occurrence of cyclones is generally in warm areas whereas tornadoes occur in places where cold and warm fronts meet, which can happen almost anywhere. Unlike cyclones which precipitate in the form of rain, tornadoes may have precipitation in the form of rain, sleet and hail.