79 Severe Convective Storm and Tornado Data Collected by RaXPol During the 2017 and 2018 Spring Seasons

Tuesday, 23 October 2018
Stowe & Atrium rooms (Stoweflake Mountain Resort )
Howard B. Bluestein, Univ. of Oklahoma, Norman, OK; and Z. B. Wienhoff, D. W. Reif, and B. L. Cheong

This presentation will highlight the datasets collected during the last two spring field experiments using RaXPol, a mobile, rapid-scan, X-band, polarimetric Doppler radar.

In 2017, data were collected on 12 days in Oklahoma, Kansas, Texas, Wyoming, and Nebraska. Highlights included: three tornadoes in supercells, two of which formed in a cyclic manner; many non-tornadic supercells; bores generated above a gust front/outflow boundary from a severe, multicell storm; large hail on several occasions, including baseball-size – 3 inch diameter hail.

In 2018, data were collected on 13 days in Oklahoma, Kansas, Wyoming, and South Dakota. Highlights included: the evolution of a tornadic storm from a near first echo/ordinary cell stage through supercell formation and tornadogenesis; the structure of an intense QLCS vortex; the split of a convective storm; supercell evolution including simultaneous time-lapse video documentation; mammatus structure and evolution at the rear of an MCS; and the characteristics of a smoke plume from a forest fire. Doppler spectra were also collected in a tornadic supercell. The 2018 storm season was unusual in that there were no deployments in March or April.

A brief summary of the data collected along with opportunities for research projects will be given.

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