I am significantly involved in the planning for the International H2O Project (IHOP) to be conducted 13 May - 30 June 2002. My collaborators in NSSL's contribution to IHOP are Erik Rasmussen (CIMMS/NSSL) and Paul Markowski (Penn State University). We are presently concentrating efforts toward the development and field testing of ground-based mobile remote and in-situ sensors. Our field sensors will be combined with other ground-based mobile observations, airborne microwave radar and DIAL systems, an airborne cloud-sensing radar system, and dropsondes in support of the convection initiation (CI) component of the upcoming IHOP field study. In all about 15 CI missions will be conducted during IHOP. The CI component also has plans to collaborate with the atmospheric boundary layer (ABL) component of IHOP on roughly 5 joint missions. Current plans call for IHOP's convection initiation missions to be conducted in the region of the eastern Texas/Oklahoma Panhandles, western Oklahoma, and southern Kansas on the southern U.S. Plains.