Yes. Tornadoes are a product of thunderstorms. Thunderstorms form as a result of warm air rising through cooler, denser air.
Air is transparent. Therefore the fundamental forming medium of a tornado will be invisible (transparent) it is only when the tornado incorporates water droplets (form the forming cloud) or debris form the ground that it becomes visible / opaque.
Tornadoes of any intensity can merge, however, it would be extremely unusual for two F5 tornadoes to be in such close proximity. The closest this came to happening in Kansas in 1990. As the Hesston, Kansas tornado was beginning to dissipate the tornado that would later hit Gossel, Kansas was forming. The two tornadoes neared each other and eventually the smaller Hesston tornado, which was in its "rope-out" stage was absorbed into the other, intensifying tornado. Although both tornadoes were ultimately rated F5, neither was at F5 intensity when the two twisters merged.
Tornadoes, particularly the strong ones, usually form in powerful thunderstorms called supercells. Supercells form best along boundaries with highly contrasting temperatures and/or moisture content. Florida's subtropical climate means that temperature contrasts are generally small, so especially powerful thunderstorms such as supercells have trouble forming, and when they do form they often have difficulty becoming intense enough to produce strong tornadoes. There are mechanisms where a storm other than a supercell can produce a tornado, which are not uncommon in Florida, but such tornadoes rarely exceed EF1 strength.
No. Humidity is an important factor in the formation of tornadoes but it is not a direct cause of tornadoes.
It all involves the conditions that lead to them forming. To produce a strong, long tornado a thunderstorm must have strong rotation and a strong updraft, and the relative humidity should be fairly high. In order to produce a long-track tornado, the storm must be able to maintain the tornado-producing state. Weak tornadoes form when conditions are less ideal. Some weak, short-lived tornadoes are spin ups that form outside of a larger supporting circulation.
No.
No... is that a joke...
The Tornadoes website offers a variety of information about tornadoes. These include: types and categories of tornadoes, weather conditions that signify tornadoes forming, and safety tips.
If general weather conditions favor the formation of tornadoes then a tornado watch is issued.
Tornadoes
Different storm centers (National Weather Service as an example) have high tech radars to detect any tornadoes that are forming or are potentially able to form. Meteorologists know the conditions that contribute to the forming of any tornadoes.
Strong tornadoes typically descend from a wall cloud.
No. Tornadoes come from thunderstorms, which form in the air. The tornado itself starts forming several thousand feet above the ground.
States with lowest tornado incidences include Alaska, Hawaii, and Vermont. These states typically have cooler climates and are not located in the traditional tornado alley region of the United States.
Yes. Population density does not affect the likelihood of a tornado striking. Many tornadoes have hit cities.
Tornadoes are poorly understood and scientists are still not sure what is involved in forming them. Furthermore, the factors that we do know contribute to tornadoes can be diffdifficult to detect.
That is difficult to determine. Many of the longest official tornado tracks were actually tornado families, series of tornadoes forming in succession, rather than individual tornadoes.