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.
On May 3, 1999 as tornadoes ravaged Oklahoma scientist measured the highest recorded wind speed at about 7:00 p.m. near Moore, Oklahoma. A wind speed of 318 mph was recorded where a tornado killed four people and destroyed 250 homes. The fastest wind measured prior was 286 mph on April 26, 1991 in a tornado near Red Rock, Oklahoma. The 318 mph speed placed the tornado 1 mph below an F6 on the 0 to 6 Fujita scale. No tornado has ever been classified as an F6.