First, the storm itself needs to be very strong and have a rotating updraft. Such a storm is called a supercell. The rotation originates from differences in wind speed and direction at different altitudes, a condition called wind shear. The mechanism that causes the rotating updraft of a supercell (called a mesocyclone) to produce a tornado is not fully understood, but the leading hypothesis states that as the mesocyclone intensifies a downdraft forms near the back of the storm and wraps around the mesocyclone, tightening it into the more intense vortex of a tornado.
warm, humid air rises in a stable environment.
Tornadoes occur in about 1% of thunderstorms.
Tornadoes always happen during thunderstorms. They cannot occur without them.
Because tornadoes occur during strong thunderstorms they are usually accompanied by rain and often by hail.
Yes. Tornadoes form from thunderstorms, usually supercells.
Thunderstorms and the tornadoes the produce are associated with cumulonimbus clouds.
Tornadoes occur in about 1% of thunderstorms.
About 1% of thunderstorms produce tornadoes.
Tornadoes occur during severe thunderstorms.
Yes. Tornadoes occur during thunderstorms.
Both tornadoes and thunderstorms are potentially dangerous weather events that occur as a result of convection. Tornadoes are a product of thunderstorms
Yes. Tornadoes form during severe thunderstorms. They cannot form without them.
No. Tornadoes occur from severe thunderstorms called supercells. It is doubtful that a tornado can form in a snowstorm.
No. Tornadoes can occur almost anywhere that gets thunderstorms.
Tornadoes
Everywhere that there are thunderstorms.
Yes. Tornadoes occur during thunderstorms that produce rain and often hail.
Yes. Tornadoes can occur almost anywhere that gets thunderstorms. Tornadoes have been recorded on every continent except Antarctica.