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A tornado is a vortex of air rising into a cloud. This distinguishes them from other kinds of thunderstorm winds that blow down from the storm, and which can often do serious damage ... Air rising from the ground in the tornado vortex creates low air pressure near the ground, which air rushes inward to fill.
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www.usatoday.com/weather/wtwist7.htm
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Many tornadoes contain smaller, rapidly spinning whirls known as subvortices, or suction vortices; but they are not always as clearly visible as in this big tornado near Altus OK, on 11 May 1982. Suction vortices can add over 100 mph to the ground-relative wind in ... Multiple Vortex Tornado near Altus OK (11 May 1982)
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www.spc.noaa.gov/faq/tornado/altus.htm
www.spc.noaa.gov/faq/tornado/altus.htm
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Roger Edwards of the Storm Prediction Center presents basic Frequently Asked Questions and the answers about tornadoes. ... How close must two or more different tornadic circulations become to qualify as a one multiple-vortex tornado, instead of separate tornadoes? There are no firm answers. BACK UP TO THE TOP...
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www.spc.noaa.gov/faq/tornado/
www.spc.noaa.gov/faq/tornado/
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How are tornadoes ranked?; Tornadoes are ranked on a six-tiered "Fujita Scale". A rank of F0 means that the tornado is weak and has caused a minimal of damage, while a rank of F6 means that the tornado was severe ... The vortex of a tornado is a dangerous place to be because here is where there is maximum rain and hail.
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www.indiaparenting.com/kidcentric/learning/science/015....
www.indiaparenting.com/kidcentric/learning/science/015.shtml
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Watch this Video Next ... Lennart Green - Master Close-up Magician ... Close Up Of Tornado Vortex Related Videos...
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www.videosift.com/video/Close-up-of-tornado-vortex
www.videosift.com/video/Close-up-of-tornado-vortex
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A multiple-vortex tornado contains two or more small, intense sub-vortices rotating around the center of the larger tornadic circulation. Occasionally visible, these vortices may form and die within a few seconds, and can occur in all torna...
http://test.crh.noaa.gov/lmk/soo/docu/tornado_faq.php
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Scientists developed this computer simulation to better understand the movement of air within the vortex of a tornado. Colored surfaces in the diagram show areas of equal air pressure, with pressure decreasing from gray through red, orange, and blue.
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www.classzone.com/books/earth_science/terc/content/visu...
www.classzone.com/books/earth_science/terc/content/visualizations/es2006/es2006page01.cfm?chapter_no=visualization
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Howells, P. C., R. Rotunno, and R. K. Smith, 1988: A comparitive study of atmospheric and laboratory analogue numerical tornado-vortex models. Q. J. Roy. Met. Soc., 114, 801-822. ... Howells, P. C., R. Rotunno, and R. K. Smith, 1988: A comparitive study of atmospheric and laboratory analogue numerical tornado-vortex models.
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citeseer.ist.psu.edu/context/942890/0
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Multiple vortex tornado - Wikipedia, the free encyclopedia
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A multiple vortex tornado is a tornado that contains several vortices rotating around, inside of, and as part of the main vortex. These multiple vortices are somewhat similar to eyewall mesovortic...
en.wikipedia.org/wiki/Multiple_vortex_tornado
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