162 Single and Dual-Doppler Radar Observations of a Nontornadic Supercell Thunderstorm on 6 June 2010

Wednesday, 7 November 2012
Symphony III and Foyer (Loews Vanderbilt Hotel)
Zachary B. Wienhoff, University of Illinois, Urbana, IL; and J. Frame
Manuscript (1.3 MB)

Handout (1.8 MB)

Radar observations of a nontornadic supercell obtained by two Doppler on Wheels (DOW) radars on 6 June 2010 near Ogallala, NE, during the second field phase of the Verification of the Origins of Rotation in Tornadoes Experiment 2 (VORTEX2) are presented. The observations began while the storm was a mature, right-moving supercell and continued for about 90 minutes, after which time the storm began to weaken. Single-Doppler observations of the reflectivity and radial velocity fields along with dual-Doppler wind syntheses will be used to diagnose the hydrometeor, flow, and vorticity fields near the mesocyclone as well as within the rear flank downdraft and to hypothesize reasons for tornadogenesis failure. Additionally, thermodynamic data obtained from mobile mesonets and sounding platforms will be analyzed in concert with the radar-derived wind fields and related to proposed mechanisms of tornadogenesis to confirm developed hypotheses.
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