Yes. A tornado is often visible as a funnel cloud as it develops.
Before it reaches the ground a developing tornado is known as a funnel cloud.
Tornadoes commonly produce what is known as a funnel cloud, which is also the term for a tornado that hasn't touched down.
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.
That is not known. Not enough measurements have been taken from inside a tornado.
No, the longest a tornado has been known to last was about 3 and a half hours.
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.
Before it reaches the ground a developing tornado is known as a funnel cloud.
Before it reaches the ground a developing tornado is known as a funnel cloud.
No. Tornadoes themselves are a kind of violently rotating windstorm. The cloud of a tornado, known as the funnel, is found in most tornadoes but not all.
Tornadoes commonly produce what is known as a funnel cloud, which is also the term for a tornado that hasn't touched down.
No. Tornadoes and earthquakes are completely unrelated. At this point in time, formation of tornadoes are not fully understood by scientists. They usually form in a giant rotating thunderstorm called a supercell. Supercells form when cold polar air meets warm tropical air. The result is a great instability caused by the rising warm air. A squall line, or narrow zone of cumulonimbus clouds forms, giving life to the tornadoes. Lightning flashes, and heavy rains and hail begin to fall. Soon after, the easiest recognizable part of the tornado, the funnel, seems to descend from the base of the cloud. In actuality, it does not, but rather the pressure within the cloud drops due to the increasing wind speeds. This is known as Bernoulli's principle. As the pressure drops, it causes moisture in the air to condense. This action continues down the spiral, giving the impression that the funnel is descending from the cloud base. In addition to the visible funnel, there is also a hissing sound, which turns into a loud roar when the tornado touches the earth. Many people believe that there is no tornado unless there is a visible funnel cloud. However this is not true, for 'invisible' tornadoes can exist. Its the same thing as a normal tornado, but the funnel cloud does not descend to the ground. The latter situation is extremely rare. This is a simulation of how a tornado forms:
The five stages of a tornado are 1. the whirl stage--when the cumulonimbus clouds begins being hit by winds blowing in different altitudes, and start rotating horizontally. this causes a funnel of air to form, otherwise known as a vortex, both whirling around and up. 2. the organizing stage--once the funnel touches the ground, it forms a solid base, and the upward, whirling motion sucks up debris into the funnel. this causes the tornado to darken. 3. the mature stage--this is the most destructive stage, where things are destroyed, as it is the most powerful. 4. the shrinking stage--when the tornado is dissipating, and weakens to the point where it is no longer visible, and slowly begins to die down. 5. the decaying stage--the tornado is completely gone.
A tornado is also commonly known as a cyclone.
A rotating column of air is known as a whirlwind. If it is violent and connects to both the ground and the cloud base of a thunderstorm, it is considered a tornado.
I believe ipo-ipo or buhawi (as locally known) are also known as waterspouts. Please refer to the story in this link: http://tubagbohol.mikeligalig.com/index.php?topic=16991.0 What exactly is a waterspout? A waterspout is an intense columnar vortex (usually appearing as a funnel-shaped cloud) that occurs over a body of water and is connected to a cumuliform cloud. In the common form, it is a nonsupercell tornado over water, and brings the water upward. It is weaker than most of its land counterparts.[1] (Source: http://en.wikipedia.org/wiki/Waterspouts) I hope this helped! :)
These sagging pouches are likely a type of cloud known as mammatus. Such clouds are not necessarily associated with tornadoes, but are a feature of thunderstorms. They are generally more common during severe storms.
Clouds themselves are not what forms a tornado, at least not directly. The process is complicated.First, a condition called wind shear, in which the speed or direction of the wind changes with altitude. If the shear is strong enough it can essentially tilt a thunderstorm, this separates the updraft and downdraft of the thunderstorm, preventing them from interfering with one another. This allows the storm to become stronger and last longer.Additionally, if the wind shear is strong enough it can start the air rolling in what is called horizontal vorticity. This horizontal vorticity can then be turned vertical by a thunderstorm's updraft. When this happens, the thunderstorm may start rotating. The rotation is especially strong in an updraft called a mesocyclone. If the storm intensifies rapidly enough, a relatively warm downdraft called a rear-flank downdraft or RFD can wrap around the bottom part of the mesocyclone. This can then tighten and intensify its rotation and bring it down to the ground to produce a tornado.