Tornadoes are around 500 feet (150 m) across on average and stay on the ground for 5 miles (8 km).
A tornado's width is measured at bottom, usually by the width of the damage path.
The funnel of a tornado always connects to cloud base and typically all the way to the ground (the circulation of a tornado can reach the ground even if the funnel does not). Cloud base height is variable but in a tornado supercell is usually about 3000 feet to a mile above the ground. The circulation of the tornado usually goes a great distance above cloud base and can reach heights of more than 4 miles.
There is not given size for an F5 tornado as ratings are based on damage rather than size. Typical F5 damage is well constructed houses blown clean off their foundations.
It depends. Some people mistakenly refer to the size of a tornado as its length, while width is a more appropriate term. No tornado has ever come close to 10 miles wide. However, in terms of. Path length, or the distance a tornado travels, a tornado can easily go for 10 miles or more. The most destructive tornadoes often have path lengths of 20 to 50 miles.
If you mean in diameter, then yes. If you mean in height, then no, A typical tornado is several kilometers tall.
A tornado does not always have an eye. When it does it can be about a quarter of the width of the funnel.
Not sure what you mean by a funnel tornado. If you are referring to the Seymour, Texas tornado of April 10, 1979, it had a well-defined funnel and it was funnel-shaped. However, it did touch down so it was not merely a funnel cloud.
tornado clouds
A tornado that does not touch the ground is a funnel cloud.
A funnel cloud is like a tornado only it does not reach the ground.
A funnel cloud is a developing tornado that has not reached the ground.
Yes. A tornado is often visible as a funnel cloud as it develops.
A tornado starts out as a funnel cloud.
The "eye" of a tornado is at the center of the funnel.
To some extent, yes. A funnel cloud is the visible portion of a tornado. However, not all funnel clouds are tornadoes. If the winds associated with a funnel cloud do not reach the ground then it is not a tornado. Conversely, if the winds do reach the ground the term funnel cloud is not usually used, and the event is simply called a tornado.
the average tornado diameter is 50 yards. Some tornadoes, however are less than ten yards wide, while the biggest can be over two miles wide.
A tornado has actually touched down on the ground - a funnel cloud is a spinning cloud that has not actually touched the ground.