P1.9
The Texas mesolow of 12 June 2003
Lance F. Bosart, Univ. at Albany/SUNY, Albany, NY; and T. J. Galarneau
On 11-12 June 2003 a mesolow formed over the southern portion of the Texas panhandle. The evolution of the mesolow circulation was captured in the available west Texas mesonet surface data, and the clear-air mode base velocity observations from the operational NWS Doppler radar network. The evolution of this mesolow is of interest, despite its status as a nonevent on the convective meteorological Richter scale, because the absence of deep convection permits the life cycle of a relatively simple dry vortex to be examined.
The mesolow formed in a large-scale environment that featured an unusually strong subtropical jet (STJ), with embedded mesoscale disturbances. These disturbances were associated with a rich variety of mesoscale convective systems (MCSs) during 9-13 June 2003 from the New Mexico, Oklahoma and Texas region east-northeastward to the lower Great Lakes. The purpose of this poster presentation is to document the evolution and life cycle of the 11-12 June 2003 mesoslow and to assess to what extent it responded to: (1) large-scale dynamical forcing associated with the STJ, (2) mesoscale forcing associated with the multiple MCSs, and (3) terrain-flow interactions over the High Plains.
Poster Session 1, Severe Storm Environments
Monday, 6 November 2006, 3:00 PM-4:30 PM, Pre-Convene Space
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