Tornadoes, natureâs most violent storms, are spawned from powerful thunderstorms. With whirling winds that can reach 300 miles per hour, tornadoes can cause fatalities and devastate neighborhoods in seconds. The greatest number of tornadoes in one calendar month is 543, in May 2003. The highest recorded tornadic wind speed is 302 miles per hour, on May 3, 1999 in Bridge Creek, Oklahoma. The largest tornado outbreak in a 24 hour period occurred on April 3-4, 1974.
Rating Newest Oldest. Best Answer: Average size of the opening of the vagina (in a woman who has not delivered a baby through the birth canal) is 1.5-3.0 centimeters. This measurement is taken from the middle of the urethral opening to the posterior opening of the bottom part of the vagina. Average length of the vagina is approximately 8.0-12.5 centimeters.
In humans the vagina is about 9 cm (3.5 inches) long on average; it is located in front of the rectum and behind the bladder. The upper region of the vagina connects to the cervix of the uterus. The vaginal channel is narrowest at the upper and lower ends. In most virgins, the external opening to the vagina is partially closed by a thin fold of tissue known as the hymen. The opening (vaginal orifice) is partially covered by the labia majora.