Outline for Informative Speech
Your name
Tornadoes
Purpose: To inform the audience about tornadoes.
Thesis: In order to better understand tornadoes, it is important to explore what causes tornadoes to develop, how researchers classify types of tornadoes, and odd occurrences that may be associated with tornadoes.
Organizational Pattern: Topical
I. Introduction
A. Attention Getter: What can hurdle automobiles through the air, rip ordinary homes to shreds, defeather chickens, and travel at speeds over 60 mph?
B. Relevance: Illinois rests on the boundary of what tornado researchers call tornado alley. This is the area of the country that receives the most tornadoes every year. According to a 1995 brochure distributed by the National Oceanic and Atmospheric Administration (NOAA), Illinois averages 27 tornadoes a year. Also, nearly 5 people die every year in Illinois as a result of tornadoes [ AID]. In fact, according to Tornado Project Online!, a website hosted by a company that gathers tornado information for tornado re searchers, the deadliest tornado in U.S. recorded history occurred in Murphysboro, Illinois. In 1925 a violent tornado killed 234 people in this Southern Illinois town.
C. Credibility: I grew up in the heart of tornado alley and have been interested in this weather phenomenon for a very long time. Also, I am a trained weather spotter for the Bloomington/Normal civil defense agency.
D. Thesis: In order to better understand tornadoes, it is important to explore what causes tornadoes to develop, how researchers classify types of tornadoes, and odd occurrences that may be associated with tornadoes.
E. Preview: So, let's crash through the causes of tornadoes, twist around the types of tornadoes, and blow through some of the oddities associated with tornadoes.
Transition: Initially, I'll crash through the causes of tornadoes.
II. Body
A. What causes tornadoes?
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.
2. The USA Today Tornado Information site also indicates that there are three key conditions for thunderstorms to form.
a. First, moisture in the lower to mid levels of the atmosphere.
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 article by Jeff Piotrowski and the article on the Joplin Tornado: Evil Swirling Darkness, explains that the Joplin tornado took out the city of Joplin, Missouri. The tornado came into the town of Joplin on May 22, 2011 and was about a mile wide. Fires were attacking the city and homes from broken gas lines, and many people were buried alive in their houses. The fire department was gone and no one could find any police to help. Neighbors helped neighbors, pulling each other out of the ruble. Over 125 people had died all from being trapped and suffocated, to be cut open by sharp objects that fell. In the end many people had died and were injured during the tragic tornado that came through and left Joplin in horror and terror.
I have chosen the scene when the tornado actually hits during this scene there are two main characters Dexter and famous storm chaser Dr. Norman Gage. Dexter is eleven years old and loves to study the weather he says when he grows up he wants to be a storm chaser just like Dr. Norman Gage. The other main character is Dr. Norman Gage he has his own T.V. series showing him chase storms but in the scene he makes a terrible mistake of getting out of his car and trying to get some good footage of the tornado and gets swept away. Dexter’s mom and dad allowed him to go storm chasing while they left the town.
In conclusion, the deadliest and most devastating U.S. tornado outbreak of the 20th century was the April 3–4, 1974, “Super Tornado Outbreak.” It lasted 16 hours and at least 148 twisters tore up 2,500 miles of Earth through 13 states over a 24-hour period, according to the National Weather Service. The "super outbreak," as meteorologists now call it, left 330 people dead and 5,484 injured. Property losses were placed at $600 million and only ten of the thirteen states that were hit, were declared a disaster area.
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 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?
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 powerful and destructive phenomena created in strong thunderstorms. Tornadoes are most common in the United States, and in the U.S., they are common in an area called Tornado Alley. Every year, tornadoes wreak havoc on the countryside, towns, and even cities. The deadliest tornado in U.S. history crossed over three states, destroyed 15,000 homes, and killed almost 700 people. There are only a couple of people on record that claim to have been in and seen the center of a tornado and lived. Tornadoes even have their own rating scale, based on their wind and damage level.Tornadoes are powerful vortexes created in thunderstorms, are common in the U.S., have its own rating scale, have only been seen on the inside a few times, have the potential to demolish towns, and can take lives.
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.
With an average of 13 minutes before a tornado strikes, each second counts. Scientists created unmanned aerial vehicles (UAVs) to study tornadoes and to improve the warning time. The UAVs penetrate tornadoes and gather data with cameras and other advanced gadgets. The scientists possess the resources and the technology to study tornadoes, but the authority to use UAVs due to the U.S government refusal. One can see the UAVs are necessary by looking at tornadoes, drones, and the warning time.
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.
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.
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...
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.