21. Weird Weather Records anecdotal stories about hurricanes, fires, extreme temperatures, tornadoes, flooding, droughts and other weather related phenomena. http://gardenearth.com/weirdwea.html

22. Tornadoes Theme Page Looks at what tornadoes are, how they are measured, how they have impacted the world in the past, and what people can do to prepare for them. Includes activity sheets. http://www.stemnet.nf.ca/CITE/tornadoes.htm

Elementary Theme Pages Tornadoes Featured in March /02 Main Elementary Themes Page What Are Tornadoes? How Are Tornadoes Measured? Tornado Alley ... Jim Cornish, Grade Five Teacher, Gander, Newfoundland, Canada. This page was last updated on February 2002. You have made the visit to my Theme Pages! privacy

23. Tornadoes Of Wisconsin Features chase information, reports, and photos from our many chases from the Texas Panhandle to Category Science Earth Sciences Storm Chasing Personalities......Welcome! to the tornadoes of Wisconsin. tornadoes of Wisconsin A photo and essayarchive of some of the most interesting tornadoes in Wisconsin history. http://www.wx-fx.com/

Welcome! to the Tornadoes of Wisconsin and Don and Jennie Lloyd's stormchasing page... Stormchasing Chase reports, links, and information related to stormchasing. The 2002 chase season is now complete. Tornadoes of Wisconsin A photo and essay archive of some of the most interesting tornadoes in Wisconsin history. Wx-Fx Photo Gallery Our favorite chase photographs, including photos of the F5 tornado in Oakfield, WI and many other tornadoes from Iowa, Kansas, Oklahoma, and Nebraska. The Wx-Fx Video Gallery Video from our chases. Wx-Fx Sales Photos and videos for personal or commercial use. Professional buyers check out our stock photo index Visitors to date: 172751 Last updated 11/24/2002 These pages maintained by Don and Jennie Lloyd Mail us with your comments, suggestions, or ridicule.

24. Tornado Information Index Basic tornado science. Learn all about tornadoes, including funnels with more thanvortex, dust devils and waterspouts, and the conditions that cause them. http://www.usatoday.com/weather/wtwist0.htm

Home News Money Sports ... Weather Main Categories Weather briefs Cold science Weather basics Hurricanes ... Almanac More weather The week ahead Weather extremes Weather safety Travel forecasts ... Talk Today 03/16/00- Updated 01:37 PM ET Tornado information index Check out USA TODAY's new tornado index This index page has been replaced by our new tornado information index that now contains all the latest details on tornado formation and research. In 10 seconds you will be automatically switched to the new index, or simply click on the link below. Don't forget to change your ange your bookmarks and links to our new tornado page at: http://www.usatoday.com/weather/tornado/wtwist0.htm Inside the new tornado information index Watches and warnings Understanding tornadoes Latest tornado news Recent severe storm reports ... Latest tornado watches, reports Links to severe thudnerstorm outlooks, watches, warnings and severe storm and tornado reports. Answers to your tornado questions USA TODAY's Weather Team and a host of scientists answer your frequently asked tornado questions. Tornado safety Learn what to do in a tornado when your home, away from home, in your car or at school.

25. CNN - Southeast Tornadoes Leave 'massive' Cleanup Ahead - Apr. 13, 1998 CNN.com http://www.cnn.com/WEATHER/9804/13/tornado.folo/

COMMUNITY Message Boards Chat Feedback SITE SOURCES Contents Help! Search CNN Networks SPECIALS Quick News Almanac Video Vault News Quiz Southeast tornadoes leave 'massive' cleanup ahead Remains of the demolished Open Door church in Minor, Alabama April 13, 1998 Web posted at: 8:55 a.m. EDT (1255 GMT) In this story: 'Life is important' Related stories and sites (CNN) Storm victims who weren't grieving for lost loved ones were cleaning up massive damage and trying to put their lives back together in the aftermath of last week's devastating tornadoes in the Southeast. More funerals were planned for Monday in north-central Alabama , the state hardest hit by violent weather that also claimed lives in Georgia and Mississippi. There were 33 deaths in Alabama alone. Thousands of homes and businesses were damaged or destroyed in the three states. Federal Emergency Management Agency Director James Lee Witt told CNN that storm survivors face a difficult task. "Just the cleanup and getting ready to rebuild is going to be massive," he told CNN on Monday morning. The damage, Witt said, was the worst he had seen in his five years at FEMA. "Everything is debris. There's nothing left," he said.

26. CNN - Deadly Tornadoes Strike South, Midwest - Mar. 2, 1997 CNN.com http://www.cnn.com/WEATHER/9703/02/storm.update/

Deadly tornadoes strike South, Midwest March 2, 1997 Web posted at: 8:57 a.m. EST (1357 GMT) LITTLE ROCK, Arkansas (CNN) As the phrase goes, March came roaring in like a lion across much of the South and into the Ohio Valley. Sunday morning, half a dozen states from Mississippi to West Virginia were cleaning up from a string of deadly tornadoes and thunderstorms that left at least 30 people dead and hundreds more wounded. Arkansas got the worst of the punishing weather, which claimed at least 23 Arkansans. The storm was deadliest in Saline County, just southwest of Little Rock, where 12 deaths have been attributed to the storm. Fierce tornadoes flattened parts of downtown Arkadelphia, a small town about 50 miles (80 km) from Little Rock, and reduced many neighborhoods and businesses to rubble. W E A T H E R Radar image for North America Search dogs were brought in to help locate the dead and injured buried in rubble that resembled a war zone. "It's horrible. The whole downtown is gone," said resident Jeremy Cox. "There's one mobile home left standing out of I don't know how many, maybe about 60," Arkadelphia Police Chief Bob Johnson said. "We lost count of the serious injuries at 19."

27. Tornadoes: Violently Rotating Columns Of Air Roger Edwards answers questions about tornado basics, forecasting, climatology, damage, safety, research, spotting chasing, and historical tornados. This FAQ is not intended to be a comprehensive guide to tornadoes. Instead, it is a quickreference summary of tornado http://ww2010.atmos.uiuc.edu/%28Gh%29/guides/mtr/svr/torn/home.rxml

Tornadoes violently rotating columns of air A tornado is defined as a violently rotating column of air in contact with the ground and pendent from a cumulonimbus cloud Photograph by: Marshall They can be categorized as "weak", "strong", and "violent"; with weak tornadoes often having a thin, rope-like appearance, as exhibited by this tornado near Dawn, Texas. About 7 in 10 tornadoes are weak, with rotating wind speeds no greater than about 110 MPH. (looking west from about 1 mile.) The typical strong tornado often has what is popularly considered a more "classic" funnel-shaped cloud associated with the whirling updraft. Rotating wind speeds vary from 110 to 200 MPH. Photograph by: NSSL Nearly 3 in 10 tornadoes are strong, such as this twister on the plains of North Dakota. Looking northeast (from about 2 miles), note the spiraling inflow cloud, probably a tail cloud, feeding into the tornado. An important safety consideration is that weak and strong tornadoes by definition do not level well-built homes. Thus, a secure home will offer shelter from almost 100 percent of all direct tornado strikes. Only violent tornadoes are capable of leveling a well-anchored, solidly constructed home. Fortunately, less than 2 percent of all tornadoes reach the 200+ MPH violent category. Furthermore, most violent tornadoes only produce home-leveling damage within a very small portion of their overall damage swath. Less than 5 percent of the 5,000 affected homes in Wichita Falls, Texas were leveled by this massive 1979 tornado. (Looking south from 5 miles).

28. CNN - Tornadoes Rip Through Kansas, Oklahoma, Texas - May 26, 1997 CNN.com http://www.cnn.com/WEATHER/9705/26/tornadoes/

Tornadoes rip through Kansas, Oklahoma, Texas No serious injuries reported May 26, 1997 Web posted at: 9:58 a.m. EDT (1358 GMT) GAINESVILLE, Texas (CNN) The flatlands of southern Oklahoma and northern Texas took the brunt of wild spring weather Sunday night when a string of tornadoes and hailstorms blew through the area. The line of storms began in Kansas, destroying homes and downing power lines in Oklahoma before crossing the Red River into Texas Sunday evening. Four tornadoes touched down near Purcell, Oklahoma, about 40 miles south of Oklahoma city, causing minor injuries. "We've had six or seven houses and two mobile homes destroyed but there were no serious injuries," said Jason Walker of the McClain County Sheriff's Department. "They were lucky." "Thought? I knew we were dead," said Nanette Williams who was inside her mobile home along with her teen-age daughter when a tornado knocked if off its foundation. At least six tornadoes touched ground along the river border between Texas and Oklahoma with no injuries, although the winds blew down trees and damaged roofs. "Everything's a mess, but I don't have anything as being obliterated," said Dee Hazle of the Cooke County (Texas) Sheriff's Department.

29. Weathervine Storm Intercept Team - Weathervine.com Storm chasers of both hurricanes and tornadoes, the WeatherVine Storm Intercept Team tells their stories of their chases through audio and video. http://www.weathervine.com

Advertising Information Stock Video Requests Hurricane Interviews/Consulting Weathervine TShirts ... Media Inquires March 2003 Spring '03 Any Search Info Tornado Alley 2002 Review 2002 Video Clips Expedition 2002 Expedition 2001 ... Expedition 1997 Hurricanes Hurr Lili 2002 Trop Isidore 2002 Hurr Michelle 2001 Hurr Gabrielle 2001 ... Hurricanes 92-97 Florida FL Lightning 3/7/03 FL Funnel/Hail 3/12/03 FL Supercell 3/13/03 FL Svr Storms 3/14/03 ... Florida Chasing 92-98 Winter 12/5/02 Snow Storm 12/11/02 Ice Storm 12/13/02 Svr Storms 12/20/02 FL Storms ... Surface Wind Streamline Storm Enthusiasts Poll What is your main interest in Weather? Severe Storms Hurricanes Forecasting All of the above View current results Weathervine As seen on Yahoo! Site Last Updated: 3/16/03 Sun. 12:00am ET. Southeast Storm Chaser Picnic Today Florida Supercell Photos 2002 Video Clips Watch Video Clips Supercell Highlands Co, FL 3/14 -Photo By: J Gammons Third Annual Southeast Storm Chaser Picnic To be held today March 16, 2003 at 11:30am in West Palm Beach / Wellington, Florida. (Palm Beach County) Escape the cold for the weekend and join us in sunny South Florida for a day of chase video's and food. This year's picnic will once again be held in West Palm Beach, Florida at a local park in the Village of Wellington. We have a large pavilion with power and close restrooms setup again for this year. We will be having hotdogs and burgers along with snacks drinks.

30. NSSL Research Topics - Tornadoes tornadoes. tornadoes can occur in many parts of the world, however, they aremost frequent during the Spring in the central United States. tornadoes http://www.nssl.noaa.gov/researchitems/tornadoes.shtml

Who We Are Special Projects Scientific Publications Accomplishments ... Current weather (courtesy NWS/SPC) Employment Archive of Links Site Map Privacy Notice Accessibility Last Updated 6 March 2003 Tornadoes T ornadoes can occur in many parts of the world, however, they are most frequent during the Spring in the central United States. Each year an average of 800-1000 tornadoes are reported nationwide resulting in many deaths and injuries. Research at NSSL is focused on gaining a better understanding of tornado development and the environment in which tornadoes form. This is accomplished through theoretical studies, field programs, and radar algorithm development and testing. The resulting knowledge and technology is then provided to the National Weather Service where it is put to use in the form of forecasts, watches, and warnings to the public. Verification of the Origins of Rotation in Tornadoes Experiment (VORTEX) Severe Storms and Tornado Research The NSSL Tornado Detection Algorithm SWAT's WSR-88D Mesocyclone and Tornado Signature Case Study Page ... Neural Networks/Artificial Intelligence for Tornado Diagnosis NSSL and NWS Education pages: tornadoes... Nature's Most Violent Storms

31. 2002 Paducah Tilghman High School Football Schedule and scores of 1999 Paducah (KY) Tilghman High School football. Also District rankings. http://users.hcis.net/tkerley/football.htm

My Companies Paducah Tilghman High School Football 2002 Season 659 wins and counting! This page is not affiliated with nor associated with Paducah Tilghman High School in any manner. State Champion: State Finals: District Champion: 2002 Team Roster Current District rankings Game of the Week poll results 2002 Schedule and Scores Record: 10 - 3 District Champions Date Opponent Score Aug. 24 Union City, TN (PTHS Fall Classic) 26 - 13 W Aug. 30 Open Sept. 6 Graves County 7 - 24 L Sept. 13 Harrisburg, IL 41 - 21 W Sept. 20 Marshall County 35 - W Sept. 27 Mayfield 22 - 28 L Oct. 4 Lone Oak * 30 - 8 W Oct. 11 Hopkins Co. Central * (Homecoming) 41 - 27 W Oct. 18 Union County * 47 - W Oct. 25 Calloway County * 32 - 8 W Nov. 1 Hopkinsville * (Senior Night) 33 - 28 W Playoffs Nov. 8 Franklin-Simpson 55 - 21 W Nov. 15 Allen Co.-Scottsville 40 - 21 W Nov. 22 Hopkinsville 7 - 21 L Games at 7:30 PM Bold indicates Home game * District Game Kentucky AAA Region 1, District 1 Rankings Team District All Games Paducah Tilghman Hopkinsville Hopkins County Central Calloway County Lone Oak Union County - Top - Game of the Week Poll Predictions and Results Game Predictions Game Votes Winner Paducah Tilghman Union City Paducah Tilghman Paducah Tilghman Graves County Graves County Paducah Tilghman Harrisburg, IL

32. Geneva College Official site with news, schedule, roster and statistics. http://www.geneva.edu/athletics/baseball/index.html

Meet the Coach News Releases Roster Schedule ... Send Your Stats 3200 College Avenue Beaver Falls, PA 15010 web@geneva.edu Baseball The Golden Tornadoes participated in the NAIA World Series in 1993 and 1996 and were named the Northeast Regional champions. In 1993 and 1999, the team also participated in the NCCAA national championship. This will be a bit of a "reloading" year for Geneva. Pitching and defenses will be the key to 2003, according to Head Coach Alan Sumner . A strong nucleus of returning players, including catcher Bob Harris and infielders Vince D'Angelo, Matt Nowaczynski and outfielder Liam Miller will lead the way. Coach Sumner believes that each student has unique God-given gifts. "My goal is to help student athletes develop physically, mentally, socially and spiritually," he says. For more information on playing at Geneva, contact: Admissions Office 3200 College Avenue Beaver Falls, PA 15010

33. The Online Tornado FAQ By Roger Edwards, SPC Roger Edwards of the Storm Prediction Center presents basic Frequently Asked Questions and the answers Category Science Earth Sciences Weather Phenomena tornadoes...... consent. THE BASICS ABOUT tornadoes. What is a tornado? BACK UP TO THETOP. HISTORICAL tornadoes. What were the deadliest US tornadoes? The http://www.spc.noaa.gov/faq/tornado/

About this FAQ The Basics about Tornadoes Tornado Forecasting Tornado Damage ... ABOUT THIS FAQ FAQ Last updated 16 Dec 2 This list of Frequently Asked Questions (FAQ) has been compiled from questions asked of the author and his colleagues, as well as basic tornado research information and countless scientific resources. More material will be added, time permitting. This FAQ is not intended to be a comprehensive guide to tornadoes. Instead, it is a quick-reference summary of tornado knowledge, which will link you to more detailed information if you desire. Recent books from your local library or a major university library are still the best resource for learning about tornadoes and other severe storms; so if you are doing your own research or school reports, please visit the library in person. There are many good websites with tornado information also. Some of them are linked from the answers below. None of the links to outside websites implies any kind of commercial endorsement on the part of the author or SPC. The intent here is to direct you to the best tornado info available, regardless of whether the source is private, public or commercial. There is also a partial list of technical scientific references related to tornadoes for those with some meteorological education and training.

34. National Oceanic And Atmospheric Administration (NOAA) - Outlook - Tornadoes - F 1999 Tornado Outbreaks Some Significant tornadoes Major Cities Recently Struckby tornadoes — Oklahoma City, OK, May 3, 1999 On Monday evening, May 3, a http://www.outlook.noaa.gov/tornadoes/tornfact.htm

1999 Tornado Outbreaks Some Significant Tornadoes Oklahoma City, OK, May 3, 1999: On Monday evening, May 3, a long track F5, violent tornado traveled from near Chickasha, Oklahoma, to just east of Oklahoma City, Oklahoma. Along its path this tornado produced areas of F5 damage to both rural sections of central Oklahoma as well as densely populated areas of Oklahoma City and its suburbs. In the wake of this single tornado, there were 42 people left dead, several hundred injured and over 1 billion dollars in damage. Deadliest Other deadly tornadoes include the May 6, 1840 tornado which killed 317 people in Natchez, Mississippi; the May 27, 1896, tornado which killed 255 in St. Louis, Missouri. Tornadoes on successive days in 1936 killed 216 people in Tupelo, Mississippi, on April 5; and 203 people in Gainesville, Georgia, on April 6. Biggest, Costliest Outbreaks The second most devastating outbreak of tornadoes of modern record was the 1965 Palm Sunday outbreak. Severe thunderstorms in the Upper Midwest spawned a total of 51 tornadoes within twelve hours. Indiana, Ohio and Michigan were hardest hit. The tornadoes killed 256 people and caused more than $200 million in damages. Two powerful tornadoes, about 30 minutes apart in time, traveled nearly identical paths across Branch, Hilsdale, Lenawee and Monroe counties in extreme south central and southeastern Lower Michigan. The tornadoes killed 44, and caused more than $32 million in damages to those areas. In Lenawee County, the damage path was up to four miles in width.

35. Pennsylvania Tornadoes Listing of all tornadoes by county from 1950 to 1995. http://www.tornadoproject.com/alltorns/patorn.htm

This page lists the date and location of all the tornadoes that have occurred in Pennsylvania during the years 1950 to 1995. If you are interested in reading about the "worst" tornadoes that have struck Pennsylvania(and all other states), see this page on our site . If you want to find out about specific tornadoes that have occurred since 1995, check out the NCDC Storm Events page. Pennsylvania Tornadoes 1950-1995 Links to the Specific Counties A B C D ... Y all times are Eastern Standard Time Beaver County Tornadoes JUN 10, 1954 012 2304 1 F2 007 MAY 13, 1956 001 0050 F2 007 APR 23, 1966 001 1530 F1 007 SEP 03, 1970 012 1927 5 F1 007 MAR 24, 1975 001 1600 F1 007 JUN 04, 1975 004 1845 F2 007 JLY 11, 1976 014 1330 F1 007 JUN 21, 1981 004 1450 F1 007 JLY 04, 1983 007 1825 1 F1 007 JLY 19, 1983 009 1700 F1 007 MAY 31, 1985 017 1910 3 40 F3 007 JLY 22, 1990 010 1628 F1 007 Butler County Tornadoes JUN 01, 1954 010 1830 F2 019 AUG 30, 1970 008 1615 F1 019 JLY 23, 1976 019 1430 F1 019 JUN 16, 1978 006 2220 1 F1 019 JUN 27, 1978 007 1530 1 F1 019 APR 28, 1981 001 1607 F2 019 JLY 20, 1981 008 1300 F2 019 MAY 31, 1985 017 1934 6 80 F3 019 JLY 22, 1990 012 1745 F0 019 JLY 22, 1990 013 1803 F0 019 JLY 22, 1990 014 1915 F0 019 SEP 06, 1990 016 1610 F1 019 JLY 23, 1991 016 1230 F0 019 JLY 29, 1994 019 1935 F1 019

36. CNN - Tornadoes, Wind Storms Sock U.S. South Again - May 8, 1998 CNN.com http://www.cnn.com/WEATHER/9805/08/storms.early/

COMMUNITY Message Boards Chat Feedback SITE SOURCES Contents Help! Search CNN Networks SPECIALS Quick News Almanac Video Vault News Quiz Tornadoes, wind storms sock U.S. South again Tornado damage in South Carolina May 8, 1998 Web posted at: 10:22 a.m. EDT (1422 GMT) EDGEFIELD, South Carolina (CNN) In four southern states, thousands of people began a task Friday that has become somewhat routine during this year's severe storm season: cleaning up after deadly tornadoes. The tornadoes that raced through Georgia, South Carolina, North Carolina and Virginia Thursday night and early Friday killed at least one woman and injured at least 20 people, officials said. Scores of people were forced from their homes, and thousands were left without power. Some of the worst damage was reported along the Georgia-South Carolina border, where hundreds of buildings were damaged. A L S O : Map of the storm-damaged region "We've got trees down, houses down, mobile homes blown through," said John Pettigrew, the mayor in Edgefield, 55 miles southwest of the capital, Columbia. A woman was killed when she was crushed under a mobile home near Meriwether, just north of Augusta, Georgia, said Mike Casey, Edgefield County's emergency preparedness director. Officials did not release the woman's name.

37. SPC Historical Tornado Data Archive Tornado documents, graphs and maps compiled and sorted by state/territory.Category Science Earth Sciences Weather Phenomena tornadoes...... Click here for a map of state FIPS numbers. No tornadoes reported 19501995in the following territories tornadoes by state/territories 1950-1995. http://www.spc.noaa.gov/archive/tornadoes/

Last updated 27 May 99 STORM PREDICTION CENTER Historical Tornado Data Archive This historical tornado data archive was compiled under a grant by the Nuclear Regulatory Commission during the 1970s, and has been maintained since then by the National Severe Storms Forecast Center (now by the Storm Prediction Center). Raw coded data is available only for 1950 through 1995. Other tornado information is compiled from Storm Data IMPORTANT NOTE: 1995 was the last year for raw severe weather data archival at SPC. Raw severe weather data from 1996 onward will be archived along with all other types of U.S. weather data at the National Climatic Data Center in Asheville, NC. Any further updates to these stats will come from data provided by NCDC, and from NWS event surveys. We will add updated tables, HTML files and images as time and resources permit. Please contact NCDC through their home page at http://www.ncdc.noaa.gov/ for further information on final tornado data. For details about the NCDC publication Storm Data , contact NCDC ordering dept. at

38. CNN - Florida's 'worst Day Of Tornadoes' Kills 36 - February 23, 1998 CNN.com http://www.cnn.com/WEATHER/9802/23/florida.storm.pm/

COMMUNITY Message Boards Chat Feedback SITE SOURCES Contents Help! Search CNN Networks SPECIALS Quick News Almanac Video Vault News Quiz S P E C I A L Florida's 'worst day of tornadoes' kills 36 February 23, 1998 Web posted at: 11:25 p.m. EST (0425 GMT) KISSIMMEE, Florida (CNN) An 18-month-old baby boy sucked out of his father's arms was one of at least 36 people killed when a deadly round of tornadoes tore through central Florida late Sunday and early Monday. About 250 people were injured, according to state officials. The federal government on Monday declared the area eligible for federal disaster aid. President Clinton plans to visit the damaged areas Wednesday. "This is the worst day of tornadoes ever to hit central Florida," said Gailee Cardwell, a spokeswoman for the state Department of Emergency Management. The tornadoes hit four counties: Osceola, Orange, Seminole and Volusia. A L S O : Detailed Map of Central Florida 13 killed in campground One of the hardest hit areas was the Ponderosa Campground in Osceola County north of Kissimmee. The campground was unusually full because of an annual rodeo and the opening of baseball spring training. The campground is located behind a stadium used by the Houston Astros for spring training.

39. Tornadoes . Information about tornadoes from the National Weather Service.Category Science Earth Sciences Weather Phenomena tornadoes......tornadoes . Nature's Most Violent Storms. Waterspouts occasionally move inlandbecoming tornadoes causing damage and injuries. How Do tornadoes Form? http://www.nws.noaa.gov/om/brochures/tornado.htm

Tornadoes.... Nature's Most Violent Storms A PREPAREDNESS GUIDE Including Safety Information for Schools U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Weather Service September 1992 (NOAA, FEMA, The American Red Cross ) For full color graphic version click here (you need an adobe acrobat reader to view this - download a free copy now.) Tornado! Although tornadoes occur in many parts of the world, these destructive forces of nature are found most frequently in the United States east of the Rocky Mountains during the spring and summer months. In an average year, 800 tornadoes are reported nationwide, resulting in 80 deaths and over 1,500 injuries. A tornado is defined as a violently rotating column of air extending from a thunderstorm to the ground. The most violent tornadoes are capable of tremendous destruction with wind speeds of 250 mph or more. Damage paths can be in excess of one mile wide and 50 miles long. Once a tornado in Broken Bow, Oklahoma, carried a motel sign 30 miles and dropped it in Arkansas! What causes tornadoes?

40. CNN - El Niño May Weaken Spring Tornadoes - March 16, 1998 CNN.com http://www.cnn.com/WEATHER/9803/16/tornado/

COMMUNITY Message Boards Chat Feedback SITE SOURCES Contents Help! Search CNN Networks SPECIALS Quick News Almanac Video Vault News Quiz S P E C I A L By Environmental News Network staff William Monfredo, who has been busy studying 40 years of accumulated weather data, is predicting a decrease in the frequency of strong and violent 1998 season tornadoes those rated 2-5 on the Fujita scale for the central United States. The national tornado season is February-July and usually peaks in the spring. Monfredo obtained much of his data from weather balloon recordings. After analyzing the information with a statistical model, he determined that wind speed and direction were inconsequential factors. "Cap strength" is another matter, however. "The stronger the cap, the longer it takes for building clouds to break through into the upper atmosphere," he explained. "The resulting storms and tornadoes traditionally are more violent than usual." Related ENN Stories: Twister's tornado sensor may become reality Tornado chasers return to the field Related sites: National Weather Service ENN El Nino Special Report Strange Brew Fire and Rain ... Sound off on our A Time Warner Company Terms under which this service is provided to you.

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