Not really. There are theoretical categories up to F12, but they are not used in practice.
F5 is the highest rating that is actually used.
Since the scale is technically based on damage and F5 damage is total destruction there is no room for a higher category.
Tornado - 1973 is rated/received certificates of: West Germany:6 (f)
Yes. F0 is the lowest rating a tornado can receive. Such a tornado peels shingles, damages signs, and breaks tree limbs. Tornadoes that occur in open fields and cause no damage are also rated F0. About 60% of tornadoes receive F0 ratings.
No. For one thing, Fujita (F) scale ratings measure the strength of a tornado, not its size. F1 is the second weakest rating a tornado can get (F0 is the weakest). Weak tornadoes such as this are generally small, but occasionally can be large. The highest rating a tornado can get is F5.
Keep on eating up mini tornadoes (im not sure if there even is an f6)
There is no such thing as an electric tornado.
No. The Tri-State tornado was an F5. There is no such thing as an F6 tornado.
There is not such thing as a "chemical tornado" a tornado is the result of thermodynamic physical processes.
No. The highest rating a tornado can attain is F5.
No. A tornado and a twister are the same thing.
Neither. A tornado and a twister are the same thing.
There is no such thing as an ice tornado.There is no way of stopping a tornado.
Nobody knows how to control a tornado. Such a thing is impossible.