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    how does a tornado form

    need to know the steps on how a tornado forms

    0  Views: 1944 Answers: 4 Posted: 13 years ago
    Tags: tornadoes

    4 Answers

    See steps here>>http://www.popularmechanics.com/science/environment/a15633/how-a-tornado-forms-in-4-steps/


    How o Tornadoes Form>>http://www.ducksters.com/science/earth_science/tornadoes.php


    http://i.imgur.com/nzQmGh0.gif

    ....when I make my wife mad

    mycatsmom

    Ha ha .

    I do not believe we have tornado in Aussie,the closest we get is a water spout..>>>>>>>><<<<<<<<..Image result for waterspout photos

    mycatsmom

    Terry , that is a tornado, only out in the ocean.
    terryfossil 1

    Nope MCM,that is a water spout,i have never heard of one hitting land,and they do not really have an eye,and nor do they last very long..>>>>>>>><<<<<<<<..Check this link out MCM..https://www.google.fr/webhp?sourceid=chrome-instant&rlz=1C1SAVS_enAU547AU553&ion=1&espv=2&ie=UTF-8#q=water+spout+facts

    They d on't have tornados in Europe 

    country bumpkin

    Moderator
    Europe averages 300 tornados per year, Europe is not a tornado free zone.
    https://horizon-magazine.eu/article/300-tornadoes-hit-europe-every-year_en.html
    From domestic to international: Tornadoes around the world
    JUL 25, 2013by KATHRYN PROCIVin TORNADO CLIMATOLOGY
    Map showing global tornado distribution. Source: commons.wikimedia.org
    Map showing global tornado distribution. Source: commons.wikimedia.org
    The United States experiences approximately 75 percent of the world’s known tornadoes and thus is notorious for its tornado climatology in terms of frequency, intensity, and destructive outbreak events. While it is appropriate to focus on tornadoes across the United States, it is important to recognize that tornadoes also happen in other countries of the world.

    This article investigates where many of the other 25 percent of the world’s tornadoes occur, with a specific emphasis on our North American neighbors of Canada and Mexico. How do other countries match up against the United States when it comes to tornado climatology? You’re about to find out. (Hint: The U.S. is the uncontested heavy weight champion of the world.)


    …North America…

    Canada

    This may serve as a bit of a surprise, but Canada is actually number two behind the United States for total annual frequency of tornadoes, with a whopping 5 percent of the globe’s total! While not intuitive at first, given Canada is often associated with a cold and rural landscape, it actually experiences a fairly robust tornado season from middle to late summer — typically mid-June through the month of July and into August.

    If you’re familiar with the monthly tornado climatology of the United States, you can recognize that tornadoes are focused in the South during the winter, near the Gulf of Mexico’s warmth, then travel northward as the warm season arrives. Tornado activity often reaches peak in the central plains of Oklahoma and Kansas by late May and early June, eventually reaching the Dakotas by mid-June into July.

    While we tend to dismiss what happens after that here in the United States, that northward trend in tornado occurrence continues into southern Canada through late summer. The Canadian Plains and Prairies, particularly encompassing the southern areas of Alberta, Saskatchewan and Manitoba, are much like the U.S. Great Plains, with flat and open terrain prone to clashes of Gulf of Mexico air and colder arctic air. Ontario and Quebec is another active tornado region in the country.

    On average, Canada experiences approximately 60 to 100 confirmed* tornadoes a year, with the majority in the F/EF0-F/EF2 range. (*Disclaimer: some tornadoes likely go unreported since the majority occur over the vast and unpopulated areas of the Canadian open Prairies.)

    An interesting note is that the tornado fatality rate tends to be lower in Canada than in the United States. An obvious reason for this is that lower population centers are in the path of most tornadoes, but another reason is that houses are often built stronger in order to endure the extreme winter weather conditions. Canada also tends to see fewer of the most extreme tornadoes, though the equivalent to an F5/EF5 event has been recorded there.

    Confirmed and probable tornadoes in Canada through 2009 (Environment Canada)
    Confirmed and probable tornadoes in Canada through 2009 (Environment Canada)
    Mexico

    Unlike Canada, the U.S. neighbor to the south does not have as impressive of a tornado history. Dominated by a moist and tropical air mass near the coasts and an arid one inland, Mexico is simply at too far of southern latitude for cold intrusions from the north that cause the temperature clash needed to produce numerous tornadic thunderstorms. With paltry reports of confirmed tornadoes and really no fatality records, there is not much of a tornado climatology for the country of Mexico.

    One interesting fact, however, is that Mexico claims the first tornado ever reported for North America, called the “Tenochtitlan-Tlatelolco tornado” which occurred on August 13, 1521. It is likely that places just south of the border of far south Texas have a similar tornado climatology to that region, but even the U.S. side does not see as frequent activity as spots further north in the state. Tropical systems are also likely a cause of some tornadoes in Mexico.

    When it comes to the continents, North America is the powerhouse for tornado climatology. The United States and Canada combined boasts 80 percent of the world’s tornadoes. That leaves the remaining 20 percent to be distributed across dozens of different countries, including those in continental Europe, as well as Bangladesh, South Africa, Australia, and Argentina among others.

    …Selected highlights across the world…

    Europe

    If Europe was one country, it would take Canada’s second place spot when it comes to tornado production per year. Scientists in the region have said that up to 300 tornadoes per year touch down across the continent, though a good deal less are usually reported.

    Russia, while not entirely (or mostly!) in Europe, is the likely leader of tornadoes per year in the region due to its massive size. Influenced by contrasting air masses courtesy of the Gobi Desert and the Himalayan Mountains, tornadoes can be quite prevalent across the large country. Most tornadoes there are weak and go largely unreported. The western/European part of the country is home to the most reports, but this may be population biased.

    The United Kingdom is believed to lead the pack in non-Russia Europe, with over 30 tornadoes per year, again largely of the weak variety. Germany, while boasting a lower average with just 10 per year, appears to be near the heart of Europe’s stronger tornado alley, which generally runs from northeast France toward Poland. Tornado frequency is also relatively high in many areas along the Mediterranean Sea.

    Because they are not terribly common in any one place, Europe does not tend to face high impact tornado events. The deadliest tornadoes in European history are both believed to have started as waterspouts. One in Malta killed upwards of 600 people in a shipping armada (1551), and another was described as twin waterspouts which became violent tornadoes near Sicily (1851), killing upwards of 500. Both of these incidents are so far in the past that it is difficult to ascertain their historical accuracy.
    http://www.ustornadoes.com/2013/07/25/from-domestic-to-international-tornadoes-around-the-world/


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