No, some tornadoes will form without a wall cloud. In most cases there are of a variety called landspouts, which are tornadoes that do not form in association with the mesocyclone of a supercell. These tornadoes are typically weak, though on occasion have been known to cause damage as high as F3.
Wall cloud.
The cloud formation before a tornado funnel forms is typically a rotating wall cloud. This type of cloud is often associated with severe thunderstorms and can indicate that a tornado may develop. It is important to take shelter if you see a rotating wall cloud, as it could produce a tornado.
The wall cloud is a large section of cloud extending down from the base of a thunderstorm. The wall cloud marke the strongest part of the mesocyclone, which is the rotating updraft that can produce a tornado. A funnel cloud or tornado usually extends from the base of a wall cloud.
The only cloud you will actually find inside a tornado is the condensation funnel. Other clouds, such as the wall cloud and cumulonimbus are outside the tornado itself.
Tornadoes form in thunderstorms, which are composed of cumulonimbus clouds. Usually a tornado will form from a wall cloud that develops are the based of the cumulonimbus cloud, and will develop from a funnel cloud that comes out of the wall cloud.
No, the wall cloud is a lowered section of the cloud base from which a tornado or funnel cloud descends. The dark cloud at the base of a tornado is called the debris cloud.
A tornado usually emerges from a wall cloud, which is at the base of a cumulonimbus cloud.
Wall cloud.
The cloud formation before a tornado funnel forms is typically a rotating wall cloud. This type of cloud is often associated with severe thunderstorms and can indicate that a tornado may develop. It is important to take shelter if you see a rotating wall cloud, as it could produce a tornado.
There often is. Most tornadoes are associated with a wall cloud but not all.
The wall cloud is a large section of cloud extending down from the base of a thunderstorm. The wall cloud marke the strongest part of the mesocyclone, which is the rotating updraft that can produce a tornado. A funnel cloud or tornado usually extends from the base of a wall cloud.
A wall cloud is part of the mesocyclone of a supercell and is sometimes a precursor to a tornado. A waterspout is basically a tornado on water.
The wall cloud itself doesn't do the damage. The wall cloud is an indicator of rotation in a thunderstorm that can lead to the formation of a tornado.
Before a storm develops into a tornado, it typically forms a rotating wall cloud. This wall cloud can often be seen beneath a thunderstorm and is a key indicator of a possible tornado forming. It is important to monitor the situation closely and take appropriate precautions if a wall cloud is observed.
A wall cloud, or, if a potential tornado is already developing, 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.
A wall cloud is suspended from a cumulonimbus cloud (mostly during thunderstorms). Then the wall cloud begins rotating counter-clockwise. Then a funnel cloud will drop from it.