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3 aspects of tornadoes
A short note on tornado
Tornado formation and structure
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On May 20th, 2013 a EF 5 tornado hit Moore, Oklahoma and surrounding towns, with a path as wide as 1.3 miles wide (2.1 km) and had a wind speed, estimated at its peak, of 210 miles per hour (340 km/h). Killing 24 people, and injuring 377, this was one of the United States worst tornadoes in the past few years, along side the Joplin, Missouri tornado, in 2011. One of Mother Nature’s most dangerous and still very mysterious phenomenons averages about 1,200 reported each year, resulting in 80 deaths and injuring 1500. With very little known about them, especially whether or not they will form is one of the questions that plague meteorologist to this very day. What causes tornadoes, how does the tilt and gravity of the earth affect the winds to produce a tornado, and what will the future hold about our understanding of tornadoes?
Tornadoes, also called twisters or cyclones, are a localized, violently destructive windstorm occurring over land, and characterized by a long, funnel-shaped cloud extending toward the ground and made visible by condensation and debris. They come in many different shapes and sizes, but are typical in a funnel formation, where the narrow end makes contact with the earth. Most don’t reach winds over 110 miles per hour (177 km/h) or have a path wider than 250 feet (76m), and most only travel a few miles on ground before dissipating. Although, some can reach winds as high as 300 miles per hour (483 km/h) or higher, have a path that can be as wide as two miles (3.2 km) or more, and can travel for dozens of miles on the ground before dissipating.
The types of tornadoes include landspout, multiple vortex tornado, and waterspout. Landspouts are a kind of tornado not associated with the mesocyclone of a thunderstorm...
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...he tornado. The warning time for a tornado is 13 minutes, from the time it is spotted to the time it hits any populated area. The average is 13 minutes, but that doesn’t always mean that there is a time to warn people before a tornado hits.
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.
Although the tornado of 10 June 1938 has been known about, at least anecdotally, within the scientific community since it was brought to light in 1939 by Metro-Goldwyn-Mayer, this potentially rich source of historic information has lain fallow. It is within this rich field of mobile, American thinking that we undertake this effort. A team of scientists with courage, brains, and even heart brought the resources to bear on the challenge.
In the book Storm Over Texas, by Joel H. Silbey the critical controversy of North vs. South is displayed. The book goes into great detail of the wild moments leading into the Civil War, the political dysfunction that ran throughout Texas, and many reasons the American Civil War sparked up in the first place. This book truly captives great Texas history and has valid information and points of our states different point of views on history.
On May 22nd, 2011 a massive tornado hit Joplin, Missouri killing 162 people and injuring 1150. With wind speeds of 322km/h, the tornado made a total cost of over $2 billion for the city. 8000 structures were destroyed, 2000 of which were homes. Many people were left homeless. The tornado held an incredible EF5 rating on the Fujita scale, measured from the amount of destruction. The tragic event lasted 38 minutes, from 5:34 pm to 6:12pm. Cool wind from the Rockies in Canada and warm wind from the gulf of Mexico formed into a supercell thunderstorm creating a tornado in Kansas. The tornado rapidly moved into Joplin and continued on its 35 km path.
A tornado struck Joplin, Missouri on May 22, 2011 at around 5:40 pm. With a population around 50,559, it killed 161 people and injured approximately 1,100 people. The cost was an estimated $2.8 billion in damage. The American taxpayers had to give about $500 million in recovery money. This made it the deadliest tornado since 1950, which was when modern recordkeeping began. Since it was an EF5 tornado, it destroyed everything in its path. The city was ruined with only piles of debris left. It was a half-mile wide when it hit Joplin and grew to three-quarters of a mile wide. It destroyed nearly 7,000 homes in Joplin and damaged hundreds more. It covered over 1,800 acres of land. The warnings that the Joplin residents received were through three different ways. The tornado warning that was sent out for Joplin’s county was from Jasper County Emergency Operations Center (JCEOC) and they claim that the first siren went off at 5:11 pm. Two other warnings for the Joplin residents was they saw the tornado heading their direction, and the media coverage which was all local electronic media switched to wall-to-wall coverage seeing live footage of the tornado.
Water spouts have happen in the Pacific oceans in Huntington Beach where an intense funnel-shaped cloud vortex happens over a body of water. This vortex is a non-supercell form tornado over water.(water spouts definition). During a water spouts you can see dark clouds over the ocean.
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.
In this paper, I will discuss what tornadoes are and how they form, what different forms of tornadoes there are, what tornado watches and warning are and give examples of tornadoes in Oklahoma and what destruction they caused, also while providing information about the Doppler radar.
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.
Then finally, the storm can be bumped up into a hurricane if the winds reach 75 mph. The National Weather Service is constantly trying to provide us with data and other information about when and where hurricanes are forming. It has been said that the only way to reduce the number of fatalities in serious storms is to give people more warning time for them to go to a safer place. Many times in hurricanes people are told to evacuate their city or state. The more time that people have to do this, the more that people will do this.
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.
Most tornados produced from these storms are relatively weak, don’t enter inhabited areas, and cause little to no damage. The problem is that Oklahoma gets 55.1 tornados annually. With all of these tornados, a couple of them are bound to go through populated areas and cause damage. The damage the tornado causes incre...
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.
“Elsner and his colleagues found that since the 1950s the number of days with large outbreaks have been increasing” (Tornado Outbreaks Could Have a Climate Change Assist). Even though it is still rare, the odds of having 32 tornadoes have doubled. These increases in tornadoes are happening in clusters in place that already receive a lot of tornadoes. According to popular science, the tornado season can be expanded. Unstable atmosphere due to global warming causes more thunderstorms that can cause tornadoes.
Other than the sweltering heat in the summer time in Oklahoma City, the only dilemma are tornadoes. I grew up in the middle of this “tornado alley” and eventually developed a sixth sense for detecting tornadic activity. Even in the 1980’s tornadoes were known for their violent crime wave, vandalizing neighborhoods and kidnapping children and adults. Imagine a beautiful evening in Moore, a suburb lying on the outskirts of Oklahoma City. Mom is in the kitchen and the kids are playing in the yard. In a matter of minutes, the sky turns green and large cumulonimbus clouds start to churn. A crackle of thunder sends a chill up your spine, followed by a strong odor of ozone that fills the air as Mother Nature’s fireworks illuminate the dark sky. Large golf ball sized hail sting your window and a melody of car alarms play in the streets. You panic as the lights inside your house start to flicker as the tornado touches down and it is reported as an F-5, the largest of all the tornadoes, tearing through houses with awe-inspiring velocity. The tornado engorges cars, trees, and small houses as it approaches your house. Being prepared, you descend to the storm cellar and brace yourself for the full impact of the unforgiving monster. The tornado has left its calling card on your block. A scrap of metal and glass resembling your car is found on your next door neighbor’s lawn. The houses on your block have vanished, leaving behind a scene of ultimate destruction. Families stand outside telling stories of how their child was stripped right out of their hands as the behemoth rampaged through their houses.