Observations and Lagrangian cold pool analysis commence prior to the development of an intense low-level mesocyclone and proceed through the storm's decay phase (~ 2345-0024 UTC). A series of wind syntheses incorporate up to 5 Doppler radars (SR1, SR2, NOXP, and DOW6 mobile radars and the Dodge City WSR-88D), and estimate the smoothed storm-environmental mesoscale wind field employing mobile environmental soundings. These augmented radar-sounding wind analyses provide a storm-scale context to force the Lagrangian analysis, while both the wind syntheses and the Lagrangian analyses provide context to interpret in-situ observations from mobile mesonets and Sticknets. The storm was observed to move into colder BL air and a more stable environment as it peaked in overall intensity, before subsequently decaying as an LP storm.
We will examine the evolution of the Greensburg storm's Lagrangian-analyzed 3-D cold pool structure in relation to the overall storm evolution. The Lagrangian air trajectories will help define the thermodynamic evolution along trajectories that fed the forward- and rear flank downdrafts, the low-level mesocyclone, and the main updraft with respect to the early supercell structure and the storm's subsequent decay as it moved into an increasingly stable environment.