The FPP scale rates the intensity of the tornado, and measured both the path length and the path width. F2 Significant tornado 113-157 mph Considerable damage. These winds are very unlikely. The small area of damage they might produce would probably not be recognizable along with the mess produced by F4 and F5 wind that would surround the F6 winds. Missiles, such as cars and refrigerators would do serious secondary damage that could not be directly identified as F6 damage.
Large tornadoes can be weak, and small tornadoes can be violent.
This tornado is pictured on the right side of the slipcase, shown here . Notice the debris in the air. Eyewitnesses to this tornado claim to have seen as many as 6 vehicles in the air at the same time when it passed over a parking lot. Another consideration is the stage in the life cycle of the tornado. Large tornadoes can also be strong and small tornadoes can be weak.