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Topic: List of F5 tornadoes

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	Sudden downturn of F5 tornadoes - Biocrawler (Site not responding. Last check: 2007-10-26)
		The United States has been experiencing a somewhat unusual lack of tornadoes ranked at "F5" on the Fujita scale.
		However, it is not unheard-of to go five or six years between F5 tornadoes.
		The May 22, 2004 Hallam, Nebraska death is the latest date inside of a year for a tornado death in a home.
	www.biocrawler.com /encyclopedia/Sudden_downturn_of_F5_tornadoes (249 words)

	Tornado
		Tornadoes are known for being extremely destructive and are usually visible due to water vapor from clouds and debris from the ground.
		Tornadoes normally rotate in a cyclonic (counterclockwise) direction in the northern hemisphere, as the warm air in which thunderstorms usually form sweeps north and jet streams come from the west, creating a situation in which the storms rotate.
		Tornadoes do occur throughout the world as well; the most tornado-prone region of the world (outside North America), as measured by number of reported tornadoes per unit area, is the Netherlands, followed by the United Kingdom (especially England).
	www.brainyencyclopedia.com /encyclopedia/t/to/tornado.html (3382 words)

	Tornado (Site not responding. Last check: 2007-10-26)
		A tornado is a violently rotating column of air which is in contact with both a cumulonimbus (or, in rare cases, cumulus) cloud base and the surface of the earth.
		A tornado is defined by the Glossary of Meteorology 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..
		Anticyclonic tornadoes often form on the anticyclonic shear side of the descending RFD in a cyclonic supercell, usually south or southeast of the main cyclonic circulation associated with the mesocyclone for a typical right-moving supercell in the Northern Hemisphere.
	www.tocatch.info /en/Tornadoes.htm (5783 words)

	Tornado K-12 Experiments for Lesson Plans & Science Fair Projects
		A tornado is a violently rotating column of air which is in contact with both a cumulonimbus (or, in rare cases, cumulus) cloud base and the surface of the earth.
		Tornadoes do occur throughout the world as well; the most tornado-prone region of the world (outside North America), as measured by number of reported tornadoes per unit area, is the Netherlands, followed by the United Kingdom (especially England).
		Tornadoes in dreams are sometimes said to be associated with fear, chaos, and upheaval.
	www.juliantrubin.com /encyclopedia/earthsciences/tornado.html (3260 words)

	Armageddon Online - Tornadoes & Twisters devistate towns across the American Midwest
		A tornado is an etremely intense windstorm known by a twisting, funnel-shaped cloud.
		The word "tornado" comes from the Spanish or Portuguese verb tornar, meaning "to turn." The event appears in storms all around the world, though they most commonly occur in a broad area of the American Midwest and South known as Tornado Alley, but some other countries see the storms occur in even higher densities.
		However, tornadoes do occur throughout the world; the most tornado-prone region of the world, as measured by number of tornadoes per unit area, is the United Kingdom, especially England.
	www.armageddononline.net /tornado.php (823 words)

	seattle bellevue redmond weather directory washington (Site not responding. Last check: 2007-10-26)
		A tornado is defined by the Glossary of Meteorology 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..
		However, many tornadoes are preceded by a funnel cloud aloft in which condensation descends from the parent storm as saturation occurs at progressively lower altitude.
		Tornadoes occurring in these conditions are especially dangerous, since only radar observations, or possibly the sound of an approaching tornado, serve as any warning to those in the storm's path.
	www.coolpup.net /mod3.php?title=Tornado (5532 words)

	tornadoes (Site not responding. Last check: 2007-10-26)
		Tornadoes occur on all continents of the world except Antarctica, with the Great Plains of the United States accounting for 70% of the total number.
		As you can see, the most common month for tornadoes to occur in is May. May is the month with the highest frequency of tornadoes, but the most powerful tornadoes occur a bit earlier in the year in April.
		Tornado deaths occur throughout the year, but with a maximum in the early spring and summer months, coinciding with the peak of tornadoes.
	www.hprcc.unl.edu /nebraska/tornadoes-NDS99-where.html (569 words)

	Tornado information - Search.com
		A tornado does not necessarily have to be visible; however, the low pressures caused by the fast wind speeds (see Bernoulli's principle) usually cause water vapor in the air to condense into a visible condensation funnel.
		Known officially as a dust-tube tornado, it is usually weak, features a small condensation funnel which often does not appear to reach the ground, and is often marked by a tall tube of dust and/or debris reaching as far up as the parent cloud.
		The longest modern-day tornado track was a tornado which was on the ground for 160 miles in northeastern North Carolina on November 22, 1992.
	www.search.com /reference/Tornado (3303 words)

	tornado
		Tornadoes develop from severe thunderstorms, usually spawned from squall lines and supercell thunderstorms, though they sometimes happen as a result of a hurricane.
		Tornadoes are inextricably associated with lightning, and tornadoes (as well as dust devils) exhibit enormous electromagnetic fields that are inexplicable by convection models.
		Tornadoes can be nearly invisible, marked only by swirling debris at the base of the funnel, though some nocturnal tornadoes have been observed glowing diffuselyhttp://www.science-frontiers.com/sf105/sf105p11.htm.
	www.mcfly.org /tornado (1678 words)

	The Dispatch - Serving the Lexington, NC - News
		This is a list of all official and possible F5 tornadoes ever recorded.
		The tornadoes on this list have been officially rated F5 by the National Weather Service and compiled by the Storm Prediction Center and National Climatic Data Center.
		For United States tornadoes as of February 1, 2007, the Fujita scale has been recalibrated to more accurately match tornado speeds with their damage and to augment and refine damage descriptors.
	www.the-dispatch.com /apps/pbcs.dll/section?category=NEWS&template=wiki&text=List_of_F5_tornadoes (292 words)

	Tornado Alley Maps and Information
		Tornado alley maps are all made up of a general area from data taken over a long period of time.
		Tornado alley should be thought of on a more yearly basis also, since weather patterns can change, making some states harder hit one year versus others, like Illinois in 1925, 1974 and 2004.
		While it may be true that tornado frequency may be highest in a small area in the US on a yearly basis, dangerous and violent tornadoes happen over many tornado alley sections within the US that may have prolonged droughts of tornadoes before being annihilated by large, long lived tornadoes again and again.
	www.tornadochaser.net /tornalley.html (1478 words)

	Downtown Tornadoes
		This is just a partial list of tornadoes in the "downtown" areas of major cities -- here defined as the central business district.
		Tornadoes such as Dallas (02 April 1957), Oklahoma City (3 May 1999) or Worcester (9 June 1953) which hit the city away from downtown are not included.
		The Lubbock death toll is given as 26 in NCDC records (Storm Data) and 28 according to a tally by Fujita, used in Grazulis (1993).
	www.spc.noaa.gov /faq/tornado/downtown.html (122 words)

	NOAA Home Page - Tornadoes Portal
		An F5 tornado rated years ago is still an F5, but the wind speed associated with the tornado may have been somewhat less than previously estimated.
		A tornado is a violently rotating column of air extending from a thunderstorm to the ground.
		The April 3-4, 1974 Super Outbreak was the largest known outbreak of tornadoes, with 148 tornadoes in 11 states.
	www.noaa.gov /tornadoes.html (658 words)

	Tornadoes
		The technical definition of a tornado is a violently rotating column in contact with the ground that is usually pendant from a parent cumulonimbus cloud.
		Tornado” because he conducted much of the pioneering work on tornadoes which serves as the basis of today’s rapidly improving understanding of severe storms.
		Tornadoes have a strong tendency to form near the right rear portion of a thunderstorm cell, particularly if it is an isolated storm called a supercell.
	sky-fire.tv /index.cgi/tornadoes.html (8536 words)

	NCDC: Tornadoes > Climatology (Site not responding. Last check: 2007-10-26)
		Strong to violent tornadoes (those of F3 or stronger on the Fujita Tornado Damage Intensity Scale), are relatively rare, and are not usually experienced outside of the central United States.
		By mid-summer, most of Tornado Alley is active and tornadoes may occur throughout the U.S. Late summer tends to bring some of the stronger tornadoes into the upper Midwest and Ohio valleys, and the pattern shifts back southward into the late autumn.
		Although all of these top tornadoes occurred prior to the invention of the Fujita Scale, historical records of their damage have led them to be classified as either F4 or F5.
	www.ncdc.noaa.gov /oa/climate/severeweather/tornadoes.html (1547 words)

	Top Ten US Killer Tornadoes
		In the 1950s, there were 18 tornadoes that killed 18 or more people.
		In the 1970s,there were 11 tornadoes that killed 18 or more people.
		All content, text, and graphics on these pages are the property of The Tornado Project and may not be reproduced, electronically or otherwise unless specified.
	www.tornadoproject.com /toptens/toptens.htm (244 words)

	F5 and EF5 Tornadoes of the United States - 1950-present (SPC)
		F5 and EF5 Tornadoes of the United States
		This is a map and list of tornadoes since 1950 which the National Weather Service has rated F5 (before 2007) or EF5 (equivalent, 2007 onward, the most intense damage category on the Fujita and Enhanced Fujita damage scales.
		The tornadoes are numbered in the order they happened since 1950; so the numbers run from the bottom up.
	www.spc.noaa.gov /faq/tornado/f5torns.html (136 words)

	Tornado Safety -- Recommendations and Resources (Site not responding. Last check: 2007-10-26)
		These are some famous tornadoes and tornado outbreaks that have occurred in North America over the past few centuries.
		The word "tornado" comes from the Spanish or Portuguese verb ''tornar'', meaning "to turn." Tornadoes form in storms all around the world, most famously in a broad area of the American Midwest and South known as Tornado Alley.
		Although in pure number of incidences, the United States experiences more tornadoes than any other country, the United Kingdom is the most proportionally tornado-prone country for its size.
	www.becomingapediatrician.com /health/149/tornado-safety.html (580 words)

	Tornado Facts (Site not responding. Last check: 2007-10-26)
		The "Tri-state" tornado of 18 March 1925 killed 695 people as it raced along at 60-73 mph in a 219 mile long track across parts of Missouri, Illinois and Indiana, producing F5 damage.
		Tornado wind speeds have only been directly recorded in the weaker ones, because strong and violent tornadoes destroy weather instruments.
		Remember: Because the only way we can compare all tornadoes is by whatever damage they caused, and F5 damage is only possible when tornadoes hit well-built structures, the true "violence" of most historical tornadoes is unknown -- especially before the middle to late 20th century.
	www.rockdaletexas.org /~tornado/tornado_facts.htm (702 words)

	List of F5 tornadoes - Wikipedia, the free encyclopedia
		Edmonton Tornado (Officially a Strong F4, Possibly F5.
		Lists all F4 and F5 tornadoes up to June 1999
		List of strong tornadoes from 1879 to present
	en.wikipedia.org /wiki/List_of_F5_tornadoes (236 words)

	F5 Tornadoes
		Tornadoes are defined as rapidly rotating columbs of wind.
		F5 tornado is capable of lifting houses off their foundations and hurling them considerable distances.
		Tornadoes are classified by their windspeed strength according to the Fujita scale.
	www.netactics.co.uk /f5_tornadoes.html (372 words)

	discovery channel tornadoes information -- discovery channel tornadoes (Site not responding. Last check: 2007-10-26)
		The Bluster on Mars 29.05.05 The tiny tornadoes, or dust devils, that scientists have...
		The peak month for tornadoes in the U.S.A. is May, and in Britain it is...
		RE Fan was always intrigued by the dynamics of tornadoes, which led him to discover and patent a man...
	www.quadtornadoes.info /discoverychanneltornadoes (835 words)

	List of F5 tornadoes
		The following is a list of all F5 tornadoes that has hit in the United States since 1900.
		As of late, there has been a huge downturn in F5 tornadoes in the United States.
		See sudden downturn of F5 tornadoes for more information.
	en.mcfly.org /List_of_F5_tornadoes (66 words)

	FAQ : HURRICANES, TYPHOONS, AND TROPICAL CYCLONES
		L6) Are TC tornadoes weaker than midlatitude tornadoes?
		L10) Why are TC tornadoes especially difficult to deal with?
		This FAQ (Frequently Asked Questions) web site attempts to address various questions regarding hurricanes, typhoons and tropical cyclones that have been posed to us as hurricane researchers over the years.
	www.aoml.noaa.gov /hrd/tcfaq/tcfaqHED.html (1622 words)

	NWS Norman, Oklahoma - F5 Tornadoes in Oklahoma (1950 - 2007)
		NWS Norman, Oklahoma - F5 Tornadoes in Oklahoma (1950 - 2007)
		You are at: NWS » NWS SRH » NWS Norman » Tornado Data » Oklahoma » F5 Tornadoes
		* Tornado began in Oklahoma, but the F5 damage only occurred in Udall, Kansas.
	www.srh.noaa.gov /oun/tornadodata/ok/f5tornadoes.php (55 words)

	Storm Prediction Center Links
		SPC lists of deadliest U.S. tornadoes, F5 tornadoes since 1950, tornadoes hitting major downtowns, and websites devoted to historical tornadoes
		Tornado Oddities and Tornado Myths discussed by Tom Grazulis
		List of Educational Weather Links from NWS Louisville
	www.spc.noaa.gov /misc/links.html (354 words)

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