141. Weather & Kids - Tornadoes April, May, and June are the most active months for tornadoes. tornadoescan last from just a few seconds to more than an hour! Tornado Facts. http://www.weatherandkids.com/tornadoes.htm

Tornado A spinning, funnel-shaped column of air accompanied by a thundercloud and moving destructively over a narrow path. April, May, and June are the most active months for tornadoes. Tornadoes can last from just a few seconds to more than an hour! Tornado Facts Most tornadoes have winds of 70-100 miles per hour, but the biggest tornadoes have winds of 200-300 miles per hour. About 75 people die each year as a result of tornadoes. Tornadoes rank just behind lightning as a weather threat. About 1200 tornadoes touch down in the United States each year. Tornado Alerts Tornado Watch : A tornado might happen, be aware of the possibility of severe weather. Tornado Warning : A tornado has been detected. The word warning means take immediate action. Taking Cover In homes and small buildings, go to the basement or to an interior part of the lowest level (closets, bathrooms or interior halls). Get under something sturdy and cover your head. In schools, nursing homes, hospitals, factories and shopping centers, go to designated areas.

142. CNN.com - At Least 2 Tornadoes Hit Near Detroit; No Injuries Reported - May 22, CNN http://cnn.com/2001/WEATHER/05/22/michigan.tornadoes/index.html

MAIN PAGE WORLD U.S. WEATHER ... ABOUT US CNN TV what's on show transcripts CNN Headline News CNN International ... askCNN EDITIONS CNN.com Asia CNN.com Europe set your edition Languages Time, Inc. Time.com People Fortune EW At least 2 tornadoes hit near Detroit; no injuries reported GALLERY At least two tornadoes swept through suburban Detroit, Michigan, on Monday, causing massive damage to buildings DETROIT, Michigan (CNN) Residents of suburban Detroit on Tuesday were cleaning up a day after at least two tornadoes overturned vehicles, uprooted trees and caused extensive damage to buildings. No serious injuries were reported. National Weather Service meteorologist David Koehler said that two tornadoes were confirmed Monday afternoon in Livingston, Oakland, Genesee and Lapeer counties in southeastern Michigan, and that numerous other funnel clouds were reported. A reported twister in Livingston County slammed a golf course, flipping over cars and golf carts and ripping off a part of a building. The storm also tore the roof off a house. In Oakland County, a barn was demolished. Lapeer County reported only minor damage. Wind and rain whipped through largely uninhabited areas, uprooting and snapping apart trees.

143. The Tornadoes – Bustin’ Surfboards The tornadoes (brothers Gerald and Roly Sanders, cousin Jesse Sanders, and drummerLeonard Delaney) came together as The Vaqueroes in high school in Redlands http://www.zptdudamusic.com/tornadoes/

[ HOME ] [ CART / CHECKOUT ] Music Styles ... Acoustic Guitar Closeouts/Discontinued Items Female Vocalists Jazz Roots Rock/Rockabilly/Honkytonk Various Artists/Compilations Washington DC Local Artists All Artists ... 3 Balls of Fire 9th Wave Alien Cowboys Alohas Aqua Velvets Astroglides Atlantics Atomic Mosquitos Bad Influence Bambi Molesters Bitch Boys Blue Hawaiians Brainwashers Roy Buchanan Cadillac Hitmen Marge Calhoun California Guitar Trio Cocktail Preachers Cosmonauti Diamondheads Duo-Tones Dynotones Eliminators Fifty Foot Combo Catfish Hodge Hypnotic IV Infrareds Insect Surfers Jetpack Jumpin' Jupiter Pete Kennedy Kennedys Kilaueas Cathy Ponton King Bill Kirchen Last Train Home Tommy Lepson Band Los Mel-tones Mach IV Barbara Martin Melanie Mason Mermen Meshugga Beach Party Metalunas Nebulas New World Relámpagos Nighthawks Penetrators Planet Seven Pollo Del Mar Tom Principato Pyronauts Quiets Razorblades Ralph Rebel Reef Rider Retroliners Ritmo Junction Serfs Slacktone Southern Culture on the Skids Supertones Surf Kings Surf-Liners Surfin’ Robots Swiv-O-Matics Thurston Lava Tube George Tomsco of the Fireballs Tornadoes Torquays Urban Surf Kings Vanduras Vara-tones Voodoo Court Waistcoats Mark Wenner Woodies Steve Wolf's Swing Speak [ ORDER FORM ] [ ZPTDUDA.COM ]

144. CNN.com - Tornadoes Batter More Than 20 Towns In Four States - May. 11, 2003 CNN http://cnn.com/2003/WEATHER/05/11/severe.weather/index.html

The Web CNN.com Home Page World U.S. Weather ... Special Reports SERVICES Video E-Mail Services CNNtoGO SEARCH Web CNN.com Tornadoes batter more than 20 towns in four states No deaths reported amid widespread injuries, damage Many homes were damaged in Rineyville, Kentucky, after storms struck overnight Sunday. Story Tools VIDEO A second twister in two days hits the Oklahoma City area, causing damage in suburban Bethany. (May 10) PLAY VIDEO CNN's Miles O'Brien recaps the storms that have rocked the Midwest and South. PLAY VIDEO RELATED Audio Slide Show: Damage to historic church Gallery: Southern floods On the Scene: Chattanooga floods Interactive: Facts and safety tips Multiple twisters hit Kansas Flooding continues in Southeast Tenn. hit hard by rain ... How a tornado forms RESOURCES Current watches, warnings and advisories National Climatic Data Center: Tornadoes Red Cross phone numbers: RINEYVILLE, Kentucky (CNN) Tornadoes ripped through towns in Kentucky and Illinois on Saturday night and Sunday morning, injuring several people and damaging scores of buildings. The twisters hit Rineyville and Harrodsburg, Kentucky, overnight. Late Saturday, tornadoes roared along a 130-mile corridor in Illinois, causing damage and injuries in 20 towns.

145. Why Chase Tornadoes? WHY CHASE tornadoes? by David Hoadley. March 31, 1982. © Copyright 1982 David Hoadley.Why chase tornadoes? This is a question frequently asked of chasers. http://www.stormtrack.org/library/chasing/whychas.htm

WHY CHASE TORNADOES? by David Hoadley March 31, 1982 Why chase tornadoes? This is a question frequently asked of chasers. It is not something that can be answered while waiting for the elevator or in small conversation at a cocktail party. It touches many levels and requires a measured response to fully answer. If my experience is characteristic of most chasers, there are at least five levels at which we relate to the big storm. First is the sheer, raw experience of confronting an elemental force of nature -uncontrolled and unpredictable- which is at once awesome, magnificent, dangerous and picturesque. Few life experiences can compare with the anticipation of a chaser while standing in the path of a big storm, in the gusty inflow of warm, moist gulf wind -sweeping up into a lowering, darkening cloud base, grumbling with thunder as a great engine begins to turn. Second is the challenge to forecast accurately and consistently where these deadly storms will occur. In a field that is still very much state of the art, each chaser must draw upon science, experience and intuition. Every day is a new puzzle of atmospheric ingredients, different from the day before, or last week, or last year. There is no textbook for what we do, that works every time. Even the National Severe Storms Forecast Center misses some big ones (ergo Grand Island, June 3, 1980, etc.). Third is the sense of participation in a great event that comes with knowledge of the dynamics and structure of those storms. Knowing the turbulent mosaic of wind streams that weave over, around and through the towering thunderheads -and understanding their sources in the great rivers of air that sweep the continent- makes the observer almost bocome a part of that which he observes; as if - by force of will- he could detach himself from earth and ride the wind up into the storm's core.

146. CNN - Four Dead As Storms Sweep Across Tennessee - May 6, 1999 CNN http://www.cnn.com/WEATHER/9905/06/more.tornadoes/index.html

[an error occurred while processing this directive] MAIN PAGE WORLD ASIANOW U.S. ... news quiz CNN WEB SITES: TIME INC. SITES: Go To ... Time.com People Money Fortune EW MORE SERVICES: video on demand video archive audio on demand news email services ... pagenet DISCUSSION: message boards chat feedback SITE GUIDES: help contents search FASTER ACCESS: europe japan WEB SERVICES: Four dead as storms sweep across Tennessee Severe storms in Tennessee Wednesday night destroyed homes IMAGE GALLERY Images from Kansas May 6, 1999 Web posted at: 1:29 p.m. EDT (1729 GMT) In this story: Arkansas Kansas Kentucky Georgia ... NASHVILLE, Tennessee (CNN) The severe weather that brought deadly tornadoes to Oklahoma, Kansas and Texas has reached the South, killing four people and damaging property in Tennessee, authorities said Thursday. "We've had damage reports from 30 of our 95 counties," Cecil Whaley of the Tennessee Emergency Management Agency told CNN. High winds Wednesday night uprooted trees, ripped off roofs - - including from two churches and blew down power lines. At least 50,000 customers in Nashville were without electricity. With the exception of rural areas, Whaley expected power to be restored to most of the buildings by Friday morning. Funnel clouds were reported in eight counties, but there were no confirmed tornado touchdowns, agency spokesman Kurt Pickering said.

147. Tornadoes tornadoes An Internet Hotlist on tornadoes. created by Instructional TechnologyKaty Independent School District. Top Ten tornadoes. Top Ten. Tornado Alley. http://www.katy.isd.tenet.edu/pathways/resources/sci/tornadoes5/TORNADOES.HTM

Tornadoes An Internet Hotlist on Tornadoes created by Instructional Technology Katy Independent School District Introduction All you need to know. Top Ten Tornadoes Tornado Alley ... Photos Introduction Going Around in Circles. To scientists who study them, twisters are the most fascinating storms on Earth. Let's say they're right ... and take a gander at the wild, whirling winds. The Internet Resources All you need to know. Tornado Safety What are Tornadoes? Dangers of Storms Fujita Scale ... Tornado Facts Top Ten Tornadoes Top Ten Tornado Alley Tornado Alley Photos Tornado photos Content by Instructional Technology, lstroud@it.katy.isd.tenet.edu http://www.kn.pacbell.com/wired/fil/pages/listtornadoein.html Last revised Tue May 4 8:20:42 US/Pacific 1999

148. Stormy Weather Provides internet activities, and information on tropical storms and tornadoes. http://www.educationcentral.org/stormy/main.htm

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149. Pictures Of Tornados And Dust Devils Images Nature, Weather: Photos By Photovaul PHOTOVALET (tm) Enter search term, Nature Weather; Tornados and DustDevils, Images by PHOTOVAULT. This page contains samples from http://www.photovault.com/Link/Nature/Weather/Tornadoes/NWTVolume01.html

PHOTOVALET (tm) Enter search term Nature: Weather; Tornados and Dust Devils Images by PHOTOVAULT T his page contains samples from our picture files on Tornados and Dust Devils . These photographs are available for licensing in any media. For Pricing, General Guidelines, and Delivery information click here . You may contact us thru email or by phone for more information on the use of these images, and any others in our files not shown here. You may also use our search engine PHOTOVALET (tm) to find other images not found on this page. Please do not ask us or email us for free use of these images and for free information! Included in the Vault are images of: Funnel Clouds, Sea Spouts See also: Flames Clouds Storms Floods Lightning ... CITIES Click on any of the thumbnail images below to view an enlarged photo Back to Category listings. Back to Category listings. PHOTOVAULT is a division of Wernher Krutein Productions Inc. and is based in San Francisco. All images represented and created and displayed on these pages by PHOTOVAULT are protected by US Law and the Berne Convention. No use, reuse, copying or reproduction is allowed without PHOTOVAULT'S specific agreement and permission, not even on the internet. Please respect the usage of these images.

150. CNN.com - Tornadoes Rip Through Midwest Injuring 3 - August 18, 2001 CNN http://cnn.com/2001/WEATHER/08/18/midwest.tornadoes/index.html

MAIN PAGE WORLD U.S. WEATHER ... ABOUT US CNN TV what's on show transcripts CNN Headline News CNN International ... askCNN EDITIONS CNN.com Asia CNN.com Europe set your edition Languages Time, Inc. Time.com People Fortune EW Tornadoes rip through Midwest injuring 3 JACKSON, Nebraska (CNN) Residents and authorities were cleaning up Saturday from a series of tornadoes that swept through the Midwest Friday evening, flattening homes, downing trees and forcing the evacuation of several neighborhoods. Authorities helped residents leave the small town of Jackson, Nebraska, about 85 miles north of Omaha, after a tornado tore through around 6 p.m. (7 p.m. ET). It was not clear when they would be allowed to return. "At this point we're making assessments on the safety of various buildings and structures so we can determine when we can allow the residents back in," said Capt. David Winkler of the Nebraska State Patrol. The tornado did heavy damage to the small town which has a population of 300 destroying 10 homes, several businesses and Jackson Public School, an elementary school, said Winkler. Two children and one woman were injured, he said. The children suffered minor injuries and the woman was hospitalized with injuries that were not life-threatening.

151. Welcome To The Tornadoes.com Site -- Presented By WebMagic The tornadoes.com™ site, presented by WebMagic, is a comprehensiveresource guide to tornadoes. tornadoes.com™ Recommended Reading. http://www2.webmagic.com/tornadoes.com/

WELCOME TO THE WEB SITE Presented by WebMagic In association with Disasters.com Register Now (free) Shopping News Links ... WebMagic Sites The site, presented by WebMagic, is a comprehensive resource guide to tornadoes. Definition and Facts News and Publications History Watch and Warning ... Twentieth Century With Mike Wallace: Terror of Tornadoes (1999) (VHS) Click 'Search' to find Amazon.com items about tornadoes Books Popular Music Classical Music Video Electronics Home Improvement Tornadoes.com WebMagic , Inc. and is designed, maintained and sponsored by WebMagic, Inc. Join WebMagic, Inc. Today!

152. Tornado Severe Weather, Safety, Current Probabilities, Statistics, Skywarn, Fact tornadoes, weather watchers, fact sheet statistics for every state, and links to the Disaster Center states pages. http://www.disastercenter.com/tornado.htm

Tornado and Severe Weather Tornado Statistics for every State CNN Ten dead in Alabama tornado Dec. 12, 2000 Alaska : Alabama : Arkansas : Arizona : California : Connecticut : Colorado : Delaware : Florida : Georgia : Hawaii : Idaho : Illinois : Indiana : Iowa : Kansas : Kentucky : Louisiana : Massachusetts : Maine : Michigan : Minnesota : Missouri : Maryland : Mississippi : Montana : North Carolina : North Dakota : Nebraska : Nevada : New Hampshire : New Jersey : New Mexico : New York : Ohio : Oklahoma : Oregon : Pennsylvania : Rhode Island : South Carolina : South Dakota : Tennesse : Tornado : Texas : Utah : Virginia : Vermont : Washington : Wisconsin : West Virginia : Wyoming : Please use our State bulletin boards for your State tornado reports To See our Current USA Situation Report The Disaster Center's Tornado Risk by State United States Tornadoes By Month and Year 1950 1997 Building a Safe Room Inside Your House ... The Journal of Storm Chasing Alabama Alaska Arizona Arkansas California Colorado Connecticut Delaware Florida Georgia Hawaii Idaho Illinois Indiana Iowa Kansas Kentucky Louisiana Maine Maryland Massachusetts Minnesota Michigan Mississippi Missouri Montana Nebraska Nevada New Hampshire New Jersey New Mexico New York North Carolina North Dakota Ohio Oklahoma Oregon Pennsylvania Rhode Island South Carolina South Dakota Tennessee Texas Utah Virginia Vermont Washington West Virginia Wisconsin Wyoming Tornado Statistics for every State 1950 1995 How Does Your State Rank?

153. Tornadoes FLORIDA STORM WATCH tornadoes, STORM WATCH PAGES. What Time Are Florida stornadoes Likely to Strike? Florida tornado climatology http://www.floridadisaster.org/bpr/EMTOOLS/Severe/tornadoes.htm

Public Business EM Community Programs ... Florida Department of Community Affairs Translate: FL Hazard Lookup NATURAL - Hurricane - Lightning - Tornado - Rain - Flood - Cold - Drought - El Nino - Heat Wave - Wildfire - Animal - Marine - Space TECH. - Computer - Foundation - HazMat - Nuclear CIVIL - Politics - Bombs - Info. Warfare - Terrorism - Aircraft NWS FORECAST- Enter City or Zip: HOME HAZARDS PAGE FLORIDA STORM WATCH TORNADOES STORM WATCH PAGES HEAT WAVE HURRICANES TORNADOES THUNDERSTORMS FLOODS When is Florida's Tornado Season? F lorida ha s two Tornado Seasons. The Summer Season , from June until September has the highest frequencies with usual intensities of or on the Fujita Scale . This includes those tornadoes that form from landfalling Tropical Cyclones. The Deadly Spring Season , from February through April is characterized by more powerful tornadoes because of the presence of the jet stream. When the jet stream digs south into Florida and is accompanied by a strong cold front and a strong squall line of thunderstorms, the jet stream’s high level winds of 100 to 200 mph often strengthen a thunderstorm into what meteorologists call a supercell or mesocyclone. These powerful storms can move at speeds of 30 to 50 mph, produce dangerous downburst winds, large hail and the most deadly tornadoes.

154. Tornadoes: Nature's Most Violent Wind Contains information about tornadoes such as how they are formed, how they are ranked, and the structure of a tornado. http://www.usatoday.com/weather/tg/wtorwhat/wtorwhat.htm

Top locations Boston Chicago Caribbean Florida Hawaii Las Vegas Los Angeles New York Orlando San Francisco Washington, D.C. Canada Europe Home News Money Sports ... Weather Inside the Basics Basics home Graphics, photos Storms, fronts Climate change ... Click here to get the Daily Briefing in your inbox 05/03/2001 - Updated 03:00 PM ET Source: USA TODAY research by Chad Palmer; Graphic by Chuck Rose Tornadoes: Nature's most violent wind Tornadoes have struck every U.S. state, including Alaska and Hawaii. But most tornadoes form in a belt from Nebraska southward through central Texas known as Tornado Alley and in the Southeast. Wind speeds in tornadoes can vary from 72 to almost 300 mph. Fortunately, only 2 percent of all tornadoes have winds greater than 200 mph. More details about tornadoes Fujita wind damage scale rates tornadoes Intense tornadoes can have more than one vortex Tornado information index USATODAY.com partners: USA Weekend Sports Weekly Education Space.com

155. TORNADOES tornadoes. This site contains all of the Nebraska tornado data beginningwith 1950. There are graphs, maps, tables, and photographs http://www.hprcc.unl.edu/nebraska/TORNADOES.html

TORNADOES This site contains all of the Nebraska tornado data beginning with 1950. There are graphs, maps, tables, and photographs and links to severe weather information. A Link to U.S. tornado data and information is also included. NEBRASKA TABLES: Hourly Statistics, 1950-2003 Total Number by County, 1950-2003 Monthly and Annual Totals, 1950-2003 Information on Each Tornado, 1950-1995 ... Year 2002 Listing of Nebraska Tornado Locations GRAPHS: Annual Frequency Line Graph, 1950-2003 Annual Frequency Bar Graph, 1950-2003 53-Year Total # of Tornadoes by Month Hourly Frequency Numbers, 1950-2003 ... Average Monthly Total 1950-2003 MAPS: Density of Tornadoes in Nebraska (1953-1999) Annual Maps of Tornadoes in Nebraska (1953-1997) Map of all F-5 Tornadoes (1950-1997) in the U.S. STORM CHASE RESOURCES: Nebraska Storm Chase Nebraska Vortex Intercept Team The Weather Shopping Mall Nebraska Tornado Density TORNADO SAFETY AND TORNADO EDUCATION Preparedness Guide Fujita Scale Tornado Myths Nebraska Tornado Facts ... Building a Safe Room NOTE: UNITED STATES SEVERE WEATHER: go to the U.S. Severe Weather page

156. NOAA Photo Library - NSSL /Tornadoes - Page 1 Back to Album. Left Arrow to Previous Screen. 1 2 3 4. Right Arrowto Next Screen. Publication of the National Oceanic Atmospheric http://www.photolib.noaa.gov/nssl/tornado1.html

Back to Album Publication of the NOAA Central Library Last Updated: 09-13-2000

157. CNN - Deadly Tornadoes Roar Across Arkansas - January 22, 1999 CNN http://www.cnn.com/WEATHER/9901/22/arkansas.tornadoes.01/index.html

MAIN PAGE WORLD ASIANOW U.S. ... news quiz CNN WEB SITES: TIME INC. SITES: Go To ... Time.com People Money Fortune EW MORE SERVICES: video on demand video archive audio on demand news email services ... pagenet DISCUSSION: message boards chat feedback SITE GUIDES: help contents search FASTER ACCESS: europe japan WEB SERVICES: Deadly tornadoes roar across Arkansas A woman was killed in LIttle Rock when a tree fell on her car January 22, 1999 Web posted at: 3:50 a.m. EST (0850 GMT) SEARCY, Arkansas (CNN) A series of tornadoes raced across Arkansas on Thursday night, killing six people and wiping out a fire department in a rural area northeast of Little Rock. One person was killed in North Little Rock and another was killed in Little Rock as a result of the storms. Four people were killed in White County when tornadoes gutted the communities of Beebe and Center Hill. Numerous injuries were reported across the state. The twisters were spawned by a rapidly moving weather front heading east across the Ohio Valley and the South toward the Gulf Coast. The storm also brought baseball-sized hail, powerful winds and lightning. In the small farm community of Joy, the fire department was destroyed.

158. Disaster Resources Website · Home · Who to Contact · EEO Statement Topics · Biosecurity · Drought· Earthquakes · Livestock · Floods · tornadoes · Educators · Winter http://www.ces.purdue.edu/eden/disasters/tornadoes/

Website Home Who to Contact EEO Statement Topics Biosecurity Drought Earthquakes Livestock ... Weather Links Around the House Keeping Food Safe USDA's Site Garden and Landscape damage and recovery Storms and trees (MS word file) When a storm strikes (PDF in English and Spanish) Around the farm Emergency/temporary grain storage information. Planning Farm Shops Chain Saw Safety Managing Farm Stress ... Weather Links Tornadoes Resources on how to deal with Nature's fury Take care of yourself and your family Safe After the Disaster Be safe after the disaster Purdue Web page with safety tips. Helping Children Cope with Stress A Purdue Extension Publication. Talking with Children Disaster procedures Includes fire and tornado safety for childcare settings. Children's reactions to stress Early childhood professionals recognizing stress reactions in children (PDF) Childhood stressWhat parents can do Advice for parents dealing with disaster recovery (PDF) Children's needs.

159. CNN.com - US - Death Toll Rises To 19 From Georgia Tornadoes - February 14, 2000 CNN http://www.cnn.com/2000/WEATHER/02/14/storms.05/index.html

U.S. News Editions myCNN Video ... Feedback CNN Sites CNN CNN Europe CNNfn CNNSI myCNN CNNfyi AllPolitics Languages Search CNN.com CNNSI.com CNNfn.com The Web U.S. TOP STORIES California braced for weekend of power scrounging Court order averts strike against Union Pacific railroad U.S. warning at Davos forum Two more Texas fugitives will contest extradition ... MORE TOP STORIES Thousands dead in India; quake toll rapidly rising Davos protesters confront police California readies for weekend of power scrounging Capriati upsets Hingis to win Australian Open ... MORE MARKETS 4:30pm ET, 4/16 DJIA NAS SPORTS Jordan says farewell for the third time ... LOCAL EDITIONS: CNN.com Europe change default edition MULTIMEDIA: video video archive audio multimedia showcase ... more services E-MAIL: Subscribe to one of our news e-mail lists Enter your address: DISCUSSION: chat feedback CNN WEB SITES: CNNfyi.com CNN.com Europe AsiaNow Spanish ... Korean Headlines TIME INC. SITES: Go To ... Time.com People Money Fortune EW CNN NETWORKS: CNN anchors transcripts Turner distribution SITE INFO: help contents search ad info ... jobs WEB SERVICES: Death toll rises to 19 from Georgia tornadoes Scenes of tornado damage in Camilla, Georgia

160. BBC - Weather Centre - WeatherWise - Fact Files - Tornadoes WeatherWise Fact Files - tornadoes - A Path of Destruction. SevereThunderstorms View this Illistration How are tornadoes created? http://www.bbc.co.uk/weather/weatherwise/factfiles/extremes/tornadoes.shtml

@import url('/includes/tbenh.css') ; Home TV Radio Talk ... A-Z Index THURSDAY 27th May 2004 Text only BBC Homepage Weather UK Weather ... Help Like this page? Send it to a friend! WeatherWise - Fact Files - Tornadoes - A Path of Destruction Severe Thunderstorms View this Illistration One of the most terrifying weather events is a fully developed tornado. The strong air currents within a storm cloud can create a high speed vortex (spiral) or funnel of winds. Wherever the end of the vortex touches the ground it creates a path of concentrated destruction that has no equal in nature. Near the core of a tornado, winds may spiral around at more than 480 km/h (300 mph). How are tornadoes created? Tornadoes develop near the boundary between the upcurrents and downdraughts in a storm cloud . A 'funnel cloud' develops first from the cloud base and this may then extend down to ground level. 'Waterspouts' are simply tornadoes that form over water rather than land. They tend to lose their energy as soon as they cross from water to land. Waterspouts are usually confined to shallow waters during warmer seasons.The destruction caused by tornadoes is due mainly to the violence of the winds. There is very low pressure at the centre of the vortex. If a tornado goes over a building it can explode outwards because of the sudden drop in pressure as the vortex passes over the building. Although they are usually less than 250 m across, they can travel a long way, sometimes more than 200 km (125 miles) across the land surface. They pick up material from the ground as they go, including cows, cats, dogs and other animals - including humans! They can be the source of some very

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