8A.1 Rear-flank downdraft dynamics in tornadic and non-tornadic supercell thunderstorms

Tuesday, 12 October 2010: 1:30 PM
Grand Mesa Ballroom F (Hyatt Regency Tech Center)
Michael I. Biggerstaff, Univ. of Oklahoma, Norman, OK; and D. P. Betten, C. L. Ziegler, D. R. MacGorman, L. J. Wicker, D. W. Burgess, and E. R. Mansell

The role of the rear-flank downdraft on the organization and intensification of a low-level mesocyclone in a tornadic supercell has been studied using dual-Doppler data that extends for more than 50 minutes. Combined with observations from VORTEX2, we will document the influence of surges in the rear-flank downdraft on the evolution of low-level mesocyclones and compare tornadic to non-tornadic storms observed during VORTEX2.
- Indicates paper has been withdrawn from meeting
- Indicates an Award Winner