Research vehicles from NOAA's National Severe Storms Laboratory. They are equipped with roof-mounted weather stations used for storm chasing on the Great Plains during VORTEX2 (May-June, 2009 and 2010). VORTEX2 is designed to improve our understanding of tornado formation, which ultimately will better allow us to assess the likelihood of tornadoes in supercell thunderstorms and possibly tornado intensity, longevity, and cyclic behavior.
