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Chapter 18 - Tornadoes

Chapter 18 - Tornadoes. 3 May 1999 radar animation. http://severewx.atmos.uiuc.edu/18/050399.reflectivity.html. Velocity animation. http://severewx.atmos.uiuc.edu/18/050399.velocity.html. Fujita Scale. http://ivis.eps.pitt.edu/courses/hazards/lectures/19.pdf. Low Level Jet.

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Chapter 18 - Tornadoes

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  1. Chapter 18 - Tornadoes

  2. 3 May 1999 radar animation http://severewx.atmos.uiuc.edu/18/050399.reflectivity.html

  3. Velocity animation http://severewx.atmos.uiuc.edu/18/050399.velocity.html

  4. Fujita Scale http://ivis.eps.pitt.edu/courses/hazards/lectures/19.pdf

  5. Low Level Jet

  6. Courtesy: Jeff Beck (TTU) Mesocyclone #2 Mesocyclone #3 Weak Convergence along Forward-Flank Reflectivity Gradient Mesocyclone #1

  7. Cyclic supercell pics RFGF RFGF meso meso

  8. New Occluded Occluded New New Cherokee, OK 4/14/12 Occluded

  9. Dumas, TX – VORTEX2 2010

  10. Tornadogenesis During VORTEX2 (Limon, CO 6/11/2010)

  11. 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

  12. In-situ pressure measurements of a tornado

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