10 May 2010

Hotel location:  Perry, OK

Intercept location:  Seminole, OK

An outbreak of tornadoes occurred in central and eastern OK.  Supercell motions were very fast, ranging from 50-60mph.  Given the fast motions, it was believed that the best opportunity for useful scientific data collection would be by forming a fixed radar network with six of the mobile radars separated by approximately 30km.  The dual-Doppler region associated with the radar network was oriented parallel to the dryline and centered on I-44 near Stroud, OK.

Numerous cell interactions near OKC and Norman upstream of the radar network resulted in a dominant, eastward moving, cyclically tornadic supercell that traveled from roughly Norman, OK to north of Ft. Smith, AR  along I-40.  Due to the fast moving nature of the storm, it was difficult to obtain coordinated observations.  However, NOXP captured tornadogenesis of EF1 and EF3 tornadoes.  Useful data was also collected from OU-PRIME, the University of Oklahoma polarimetric research radar.  Balloons were launched in the pre-storm, in-storm, and post storm environment.  Photogrammetry conducted damage surveys following the event.