Tornadoes are produces by cumulonimbus clouds. Often a wall cloud and/or funnel cloud are seen before or during a tornado.
A wall cloud
Tornadoes are often made visible by a funnel cloud, which forms as a result of the pressure drop inside the tornado.
A tornado.
It is usually just called a debris cloud or dust whirl.
No, it can not happen. You will always need a cloud to form a tornado. The kind of cloud that a tornado uses is a cumulonimbus cloud.
The cloud that forms the visible part of a tornado is called a funnel cloud.
A wall cloud
Tornadoes are often made visible by a funnel cloud, which forms as a result of the pressure drop inside the tornado.
It is simply a tornado and even a tornado that is considered "weak" by tornado standards can produce a cloud of dust at ground level.
A storm does not become a tornado; it produces one. The rest of the storm remains largely unchanged as a cumulonimbus cloud. The tornado itself forms a funnel cloud.
it forms from a super-cell in a huge cloud.
When a tornado forms it often produces a funnel cloud.
A wall cloud is a lowering of a cloud base that is often seen before a tornado forms. It marks the most intense portion of the mesocyclone, the rotating updraft from which a tornado forms. The links below shows picture of what wall clouds often look like.
The whirling wind forms a tornado.
No, the mesocyclone is the larger circulation that the tornado forms from. It can sometimes be seen as a lowering of the cloud base called a wall cloud.
To a degree. A tornado is often made visible by a cloud known as a condensation funnel or funnel cloud. The tornado itself is not a cloud, however, but a violent rotating windstorm. The condensation funnel is sometimes absent in a tornado.
A tornado is often visible as a funnel cloud.