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Chapter 18 - Tornadoes
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3 May 1999 radar animation
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Velocity animation
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Fujita Scale
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Low Level Jet
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Weak Convergence along Forward-Flank Reflectivity Gradient
Courtesy: Jeff Beck (TTU) Mesocyclone #2 Mesocyclone #3 Weak Convergence along Forward-Flank Reflectivity Gradient Mesocyclone #1
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Cyclic supercell pics RFGF RFGF meso meso
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New Occluded Occluded New New Cherokee, OK 4/14/12 Occluded
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Dumas, TX – VORTEX2 2010
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Tornadogenesis During VORTEX2 (Limon, CO 6/11/2010)
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Tornado Structure * Very strong near-surface radial inflow
* Sharp transition to upward motion in center of vortex (corner region) * May develop two-celled structure (descent in center of vortex) – immediately precedes multiple vortex structure
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In-situ pressure measurements of a tornado
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