Preliminary analysis of the 10 June 2010 supercells intercepted by VORTEX2 near Last Chance, Colorado

During the evening of 10 June 2010, a line of supercells developed over eastern Colorado in an environment favorable for tornado formation. The Second Verification of the Origins of Rotation in Tornadoes Experiment (VORTEX2) intercepted two of the supercells. The first (non-tornadic) supercell was intercepted near Hoyt between 2345 – 0040 UTC (11 June 2010). The second supercell produced two tornadoes near Last Chance between 0108 – 0127 UTC; data were collected from about 0110 – 0245 UTC. We present a preliminary analysis of the mobile radar and mesonet data collected, including the evolution of the dual-Doppler-derived winds and the thermodynamic fields (when possible). This case provides rare, detailed observations of non-tornadic and tornadic storms occurring in close proximity. Differences in their environments as well as in their internal storm processes are examined.