Lighting and Tornado are Formed

Lighting and Tornado Formed

Tornado

A tornado is a rapidly spinning tube of air that touches both the ground and a clouds above.

  • Tornadoes are sometimes called twisters.

  • Not all tornadoes are visible but their high wind speeds and rapid rotation often form a visible funnel of condensed water.

  • The Fujita Scale is a common way of measuring the strength of tornadoes. The scale ranges from F0 tornadoes that cause minimal damage through to F5 tornadoes which cause massive damage.

  • Most tornadoes have wind speeds less than 100 miles per hour (161 kilometres per hour).

  • Extreme tornadoes can reach wind speeds of over 300 miles per hour (483 kilometres per hour).

  • Most tornadoes travel a few miles before exhausting themselves.

  • Extreme tornadoes can travel much further, sometimes over 100 miles (161kilometres).

  • The Tri-State Tornado that travelled through parts of Missouri, Illinois and Indiana in 1925 left a path of destruction over 219 miles (352 kilometres) long.

  • The Tri-State Tornado was the deadliest tornado in US history, killing 695 people.

  • The USA averages around 1200 tornadoes every year, more than any other country.

  • The majority of these tornadoes occur in a geographically unique area nicknamed ‘Tornado Alley’.The most powerful Tornadoes occur in the United States.Tornado reporting methods have changed a lot in the last several decades, so the officially recorded tornadoes are believed to be incomplete. Although the actual average is unknown, recent trends indicate the number is around 1,300. This year, the number of tornadoes is 1,151 reports which is on pace for a record season

  • This is the top 10 most deadliest tornados

    1) March 18, 1925, Tri-State (Mo./Ill./Ind.), 695 deaths

    2) May 6, 1840, Natches, Miss., 317 deaths

    3) May 27, 1896, St. Louis, Mo., 255 deaths

    4) April 5, 1936, Tupelo, Miss., 216 deaths

    5) April 6, 1936, Gainesville, Ga., 203 deaths

    6) April 9, 1947, Woodward, Okla., 181 deaths

    7) April 24, 1908, Amite, La.,/Purvis, Miss., 143 deaths

    8) May 22, 2011, Joplin, Mo., 124 deaths (pending final totals)

    9) June 12, 1899, New Richmond, Wis., 117 deaths

    10) June 8, 1953, Flint, Mich., 115 deaths

    How Do Tornadoes Form? - Instant Egghead #37

    Lighting

    Lightning is one of the most powerful natural forces on the planet. It is a natural discharge of the static electricity built up in storm clouds. However how is lightning formed? A lot of its formation is linked with cloud formation. Most lightning is formed as a part of thunderstorms. We know from observation of static electricity that static electrical discharges such as lightning are caused by separation of charges into positive and negative ions. Over time more of one charge builds until its natural attraction to the opposite charge causes it to migrate in an electrical discharge.

    In the case of lightning cloud formation is seen as the main way that the separation of charges occurs. This is because clouds are largely made of condensed water vapor. Water has many interesting traits and one of them is polarizing charges on the molecular level. Scientist believe that as water changes states during cloud formation an extra charge is developed and separated by water molecules. Some hypotheses see the charges so separated that all of one side of a cloud can be one charge.

    There is also the fact that there is a corresponding build up charge on the ground or in opposing clouds. This build up charge is what creates the conditions for lightning. This makes the discharge of lightning possible. Thunderstorm clouds such as cumulonimbus are the main type of cloud involved in the formation of lightning. This is because the rising and sinking of air involved in this volatile type of cloud causes a bumping of air and water molecules that causes the buildup of a charge. Now let’s get back to the charge of the ground; this is induced by the thunderclouds above. As a thunder cloud becomes increasing charged it induces a positive charge in the ground to balance things out.

    Epic Lightning Storm in Georgia

    WaterSpouts

    Waterspouts exist on a microscale, where their environment is less than two kilometers in width. The cloud from which they develop can be as innocuous as a moderate cumulus, or as great as a supercell. While some waterspouts are strong and tornadic in nature, most are much weaker and caused by different atmospheric dynamics. They normally develop in moisture-laden environments as their parent clouds are in the process of development, and it is theorized they spin as they move up the surface boundary from the horizontal shear near the surface, and then stretch upwards to the cloud once the low level shear vortex aligns with a developing cumulus cloud or thunderstorm. Weak tornadoes, known aslandspouts, have been shown to develop in a similar manner.[7] More than one waterspout can occur in the same vicinity at the same time.Though the majority occur in the tropics, they can seasonally appear in temperate areas throughout the world, and are common across the western coast of Europe as well as the British Isles and several areas of the Mediterranean and Baltic Sea. They are not restricted to saltwater; many have been reported on lakes and rivers including the Great Lakes and the St. Lawrence River.[17] Waterspouts are fairly common on the Great Lakes during late summer and early fall, with a record 66+ waterspouts reported over just a seven-day period in 2003.[18] They are more frequent within 100 kilometers (60 mi) from the coast than farther out at sea. Waterspouts are common along the southeast U.S. coast, especially off southern Florida and the Keys and can happen over seas, bays, and lakes worldwide. Approximately 160 waterspouts are currently reported per year across Europe, with the Netherlands reporting the most at 60, followed by Spain and Italy at 25, and the United Kingdom at 15. They are most common in late summer. In the Northern Hemisphere, September has been pinpointed as the prime month of formation. [19] Waterspouts are frequently observed off the east coast of Australia,[20][21] with several being described by Joseph Banks during the voyage of the Endeavour in 1770.[22]
    Waterspout in Tampa Bay wrecks havock