Tornado Research Paper

Ministry of Educational Zone Tornado INTRODUCTION The word tornado is an altered form of the Spanish word tronada, which means thunderstorm. This in turn was taken from the Latin tonare, meaning to thunder. It most likely reached its present form through a combination of the Spanish tronada and tornar. A tornado is also commonly referred to as a twister, and is also sometimes referred to by the old-fashioned colloquial term HYPERLINK http//en.wikipedia.org/wiki/Cyclone o Cyclone cyclone. HYPERLINK http//en.wikipedia.org/wiki/Tornado l cite_note-TT-11 12 The term cyclone is used as a synonym for tornado in the often-aired 1939 film, HYPERLINK http//en.wikipedia.org/wiki/The_Wizard_of_Oz_(1939_film) o The Wizard of Oz (1939 film) The Wizard
HYPERLINK http//en.wikipedia.org/wiki/Tornado l cite_note-Glossary_of_Meteorology-12 13 HYPERLINK http//en.wikipedia.org/wiki/Tornado l cite_note-significant_tornadoes-19 20 HYPERLINK http//en.wikipedia.org/wiki/Tornado l cite_note-20 21 Characteristics Size and shape HYPERLINK http//en.wikipedia.org/wiki/FileBinger_Oklahoma_Tornado.jpg HYPERLINK http//en.wikipedia.org/wiki/FileBinger_Oklahoma_Tornado.jpg o Enlarge A wedge tornado, nearly a mile wide. HYPERLINK http//en.wikipedia.org/wiki/May_1981_tornado_outbreak o May 1981 tornado outbreak This tornado hit HYPERLINK http//en.wikipedia.org/wiki/Binger,_Oklahoma o Binger, Oklahoma Binger, Oklahoma. Most tornadoes take on the appearance of a narrow HYPERLINK http//en.wikipedia.org/wiki/Funnel o Funnel funnel, a few hundred yards (meters) across, with a small cloud of debris near the ground. Tornadoes may be obscured completely by rain or dust. These tornadoes are especially dangerous, as even experienced meteorologists might not spot
Funnel clouds and small tornadoes are reported as whistling, whining, humming, or the buzzing of innumerable bees or electricity, or more or less harmonic, whereas many tornadoes are reported as a continuous, deep rumbling, or an irregular sound of noise. HYPERLINK http//en.wikipedia.org/wiki/Tornado l cite_note-tornado_music-38 39 Since many tornadoes are audible only in very close proximity, sound is not reliable warning of a tornado. And, any strong, damaging wind, even a severe hail volley or continuous thunder in a thunderstorm may produce a roaring sound. HYPERLINK http//en.wikipedia.org/wiki/Tornado l cite_note-sound_obs-39 40 HYPERLINK http//en.wikipedia.org/wiki/FileTornado_infrasound_sources.png HYPERLINK http//en.wikipedia.org/wiki/FileTornado_infrasound_sources.png o Enlarge An illustration of generation of infrasound in tornadoes by the HYPERLINK http//en.wikipedia.org/wiki/Earth_System_Research_Laboratory o Earth System Research Laboratory Earth System Research Laboratorys Infrasound Program Tornadoes also produce identifiable inaudible HYPERLINK http//en.wikipedia.org/wiki/Infrasonic o Infrasonic infrasonic