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Tornado Facts: What You Need to Know About the Spinning Air of Destruction
Most people know what a tornado is, but not all of them know what a tornado really is. There is more to it than just a swirling mass of wind that only scares the bejeezus out of you or leaves destruction on its wake.
What is a tornado?
Also known as twisters, cyclone and funnel, a tornado is a tube of air that touches both the ground and clouds and spins rapidly. For a vortex of wind to be called a tornado, it must touch the ground.
How is a tornado formed?
Tornado formation follows several steps and involves different factors.
It starts with large thunderstorms that happens in cumulonimbus cloud. When wind direction and speed changes at high altitude, air would swirl horizontally. When air rising from the ground pushes up on the funnel of swirling air and then tips it over, the funnel wood start to suck up more warm air from the ground. This causes the funnel to stretch and grow longer. When one end of it touches the ground, it officially becomes a tornado.
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It takes on the shape of a narrow funnel that stretches from the clouds to the ground. Giant tornadoes would look wider and bigger. Size and wind speed of a tornado can vary widely. In the United States, a typical tornado ranges from a few feet to around 500 feet wide, and spins at a speed from 65 to 250 miles per hour.
What are the different colors of a tornado?
Most tornadoes are colored Gray, but it can change, depending on the local environment. Some are almost invisible, while others can look red, black, white, blue or even green.
Do tornadoes rotate in a specific direction?
In the northern hemisphere, most tornadoes rotate counter-clockwise when viewed from above. In the southern hemisphere, it rotates in the opposite
Many scientists often find themselves wondering if the tri-state tornado was really a single massive tornado or if it was part of a family of tornadoes that continuously evolve from one supercell to another. Only one factor stands in the way of this theory and that is a cyclical supercell usually has breaks in its destructive path. The tri-state tornado's path of damage appeared to be continuous despite two slight decreases in the destruction. One of which was near the onset of the storm, and one near the demise. No matter which is believed, one thing is for certain, and that is a storm like the tri-state tornado could very well happen again, but there is no telling when or where it may occur.
According to Webster’s Dictionary, a tornado is a rotating column of air accompanied by a funnel shaped downward extension of a cumulonimbus cloud and having a vortex several hundred yards in diameter whirling destructively at speeds of up to three hundred miles per hour. There are six classifications of tornadoes, which are measured on what is known as the Fujita Scale. These tornadoes range from an F0 to an F5, which is the most devastating of all. Abnormal warm, humid, and oppressive weather usually precede the formation of a tornado. Records of American tornadoes date back to 1804 and have been known to occur in every state of the United States.
Around 1,200 tornadoes hit the United States, most inside “tornado alley”, and during the main “tornado season” during spring and summer. As Earth’s tilt decides where the Sun will be, and what once was undisturbed air, now changed by gravity, can all lead to the production of a tornado. Mother Nature’s most dangerous and mysterious pheromones still unknown and still being researched. What else can cause the formation of tornadoes, beside Earth’s tilt and gravity? Meteorologist are still looking for the answer. Constantly learning more and more about tornadoes, maybe one day there will be a smaller death toll from tornadoes.
Tornadoes are “violent windstorms that take the form of a rotating column of air or vortex that extends downward from a cumulonimbus cloud” as Tarbuck and Lutgens (2012) explain.
On May 4, 2007, the town of Greensburg, Kansas was devastated by an exceptionally strong tornado. With maximum winds estimated to be in excess of 205 miles per hour, and leaving a damage path as wide as 1.7 miles, the storm would go on to be rated a rare EF5, the first recorded in the United States since 1999. When the storm finally subsided, 95 percent of Greensburg had been destroyed, killing eleven people.
Tornadoes are devastating atmospheric events that affect the ecology and the lives of people in their paths. Tornadoes are defined as “a violently rotating column of air, in contact with the ground, either pendant from a cumuliform cloud or underneath a cumuliform cloud, and often (but not always) visible as a funnel cloud” (Glossary of Meterology, 2011). The Tri-state tornado was the most deadly tornado in the United States. It stayed on the ground for a total of 219 miles through areas of Missouri, Illinois, and Indiana, killed a total of 695 people, and an estimated $16.5 million in damages (National Weather Service, 2011). Luckily, the tornado’s path was largely rural farmland with scattered small towns between them.
I would like to start out by what we know about tornados and outbreaks, and what is said to be the cause of such catastrophic events, such as the outbreak that occurred November 17th in the Midwestern, portion of the United States. Tornado outbreaks occur when there are multiple tornados that are said to be produced by the same weather system. The classification of an outbreak can vary depending on interpretation. It is said that in order to be classified as a “tornado outbreak” there must be a certain number of tornados that touch down. It is said that the US has the most tornados of any country. This can be attributed the location with in the mid latitude. The Rocky Mountains, have the ability to block moisture and “buckle” the atmospheric flow; thus forcing a lot of dry air at mid-levels of the troposphere, due to downslope winds. While the Rockies are forming a “dry-line” the Gulf of Mexico on the other hand contributes a lot of low level moisture. This mixture of warm air and cold air is to blame for the large number of tornados that form in the US. These events are most prevalent in the Midwestern and Southeastern United States, along with the Great Plains also known as (tornado alley) although some of these systems have been known to move as far North as Canada. The tornado outbreak that took place on the 17th of November is said to have been the one of the largest outbreaks to have occurred in eight years. This particular storm spawned a total of 72 tornados that swept through seven states, according to the National Weather Service. This outbreak is being considered the fourth largest outbreak of its kind, especially this time of year.
It seems like every year Oklahoma is hit by massive storms and tornados that kill people and wound many others. Although some may say Oklahomans are used to getting hit by storms and tornados, but the outcome is never something we get used to and this year, just like any other, we got hit. On May 20, 2013 an EF5 tornado started to develop and little did we know that this tornado would be talked about everywhere. This tornado did major damage to houses, towns, and buildings, but what got this tornado so much attention was that it tore through an elementary school, that was unprotected from tornados, and killed seven children. According to the National Weather Service’s Top Ten Deadliest Oklahoma Tornados (1882-Present) this specific tornado is ranked number nine, killing 23 individuals and injuring 237 others. Even though there is a slim chance we could have saved everyone, we still could have saved those children in the Plaza Towers Elementary school. All they needed was a storm shelter at their school to take cover in and they probably would have all survived.
A tornado occurs in very powerful thunderstorms, and usually it occurs in a super cell. A super cell is a type of storm that already has rotation inside of it, called a mesocycle. A tornado begins to form when a downdraft of air pulls the mesocycle down towards the ground. A funnel begins to form, and when the funnel cloud finally touches down, it officially becomes a tornado. As warm, moist air (the fuel of a tornado) is drawn into the tornado, it matures...
A tornado requires some basic ingredients to come together. First, energy in the form of warm, moist air must exist to feed thunder storms. Second, there must be a top layer of hot, dry air called a cap. This air acts like a lid on a simmering pot, holding in the warm air that’s accumulating in the atmosphere below until the storm’s ready to burst. Last, there has to be rotating winds speeding in oppositedirections at two different levels in the atmosphere, a phenomenon called wind shear, can cause the storms to rotate. Tornado alley is perfectly situated to meet these requirements. (1)
Tornadoes are one of the deadliest and most unpredictable villains mankind will ever face. There is no rhyme or reason, no rhythm to it’s madness. Tornados are one of the most terrifying natural events that occur, destroying homes and ending lives every year. April 29th, 1995, a calm, muggy, spring night I may never forget. Jason, a buddy I grew up with, just agreed to travel across state with me so we could visit a friend in Lubbock. Jason and I were admiring the beautiful blue bonnets, which traveled for miles like little blue birds flying close to the ground. The warm breeze brushed across the tips of the blue bonnets and allowed them to dance under the perfectly clear blue sky. In the distance, however, we could see darkness. A rumbling sky was quickly approaching.
1. According to the USA Today Tornado Information website, a tornado is a "violently rotating column of air in contact with the ground and pendant from a thunderstorm." Therefore, thunderstorms are the first step in the creation of a tornado.
For a hurricane to form, the ocean temperature must be warmer than twenty-six degrees Celsius, or eighty degrees Fahrenheit. Also, the air near the oceans surface must be filled with moisture. The seawater that is warmed by the heat from the sun evaporates to form vast storm clouds. As the warm air rises, the cooler air replaces it thus creating a wind. The rotation of the earth bends the wind inward causing it to rotate and spiral upward with a great amount of force. Around the Equator, the spin is the fastest. There, it can be faster than six hundred miles per hour.
A tornado is defined as a violently rotating column extending from a thunderstorm to the ground. The most violent tornadoes are capable of tremendous destruction with wind speeds of two hundred and fifty miles per hour or more. Damage paths can be more than one mile wide and fifty miles long. In an average year, eight hundred tornadoes are reported nationwide, resulting in eighty deaths and over one thousand five hundred injuries. In the body of my essay, I will tell you about types of tornadoes, where tornadoes come from, where and when tornadoes occur, the damage they inflict, variations of tornadoes, and how to detect tornadoes.