Fetid was a child of the Latin word fetidus, and dates back to the early 15th century, as does its cousin (now in disuse), fetor. Reek, which originally was a verb meaning âto smoke,â took on the connotation of âto smell badâ in the 17th century.
A F4 tornado has a maximum speed of 260mph (418 kph). However it should be noted that the wind estimates of the original Fujita scale, which were meant to correlate with damage levels, have been found to be inaccurate. on the new Enhance Fujita scale the top estimated wind speed for an EF4 tornado is 200 mph.
The fastest Tornado to have its recorded had winds of 301 mph, though others may have had higher winds, but not had them measured as such measurements are rare. Tornadoes typically have winds between 40 mph and 110 mph. In terms of traveling speed most tornadoes travel at 30 to 40 mph.