mostly cold fronts
Initial factors needed for a tornado to form are wind shear and instability that can cause thunderstorms. For a thunderstorm to produce a tornado, it needs to be a type of rotating storm called a supercell.
A tornado is typically associated with a thunderstorm, which forms along a cold front where warm moist air collides with cool dry air. The interaction of these air masses creates the instability and wind shear needed for tornado development.
Tornadoes most often form along a cold front.
As many that is needed to correct your Grammar.
It is useful to know the wind speed of a tornado because it provides an understanding of tornado intensity and dynamics. It is important to know the forwards peed of a tornado because that is needed to know when a tornado might reach a location in its path.
The weather that precedes a tornado, including heavy rain and hail generally occurs in the front part of a supercell thunderstorm, with the tornado closer to the back.
A Tornado A Front.
Mostly it is because it is hard for a storm to gather the energy needed for a strong tornado.
The largest tornado on record (the Hallam, Nebraska tornado of May 22, 2004) was produced by a supercell thunderstorm that most likely was associated with a cold front or dry line.
Yes it is. Tornadoes form during thunderstorms, and a downdraft caused by rain is one of the things needed to produce the tornado.
The strong wind in a tornado is the source of its destructive potential.
A tornado is typically associated with a cold front, which is the leading edge of a cooler air mass pushing under a warmer air mass. The clash of cold and warm air can create the conditions necessary for the development of tornadoes.