  The Lightning Launch Commit Criteria (LLCC) are a set of complex rules to
avoid natural and rocket-triggered lightning strikes to in-flight space launch
vehicles. The LLCC are the leading source of scrubs and delays to space
launches from Cape Canaveral Air Force Station (CCAFS) and NASA Kennedy Space
Center (KSC). An LLCC climatology would be useful for designing launch concept
of operations, mission planning, long-range forecasting, training, and setting
LLCC improvement priorities. Unfortunately, an LLCC climatology has not been
available for CCAFS/KSC. Attempts have been made to develop such a climatology,
but they have not been entirely successful. The main shortfall has been the
lack of a long continuous record of LLCC evaluations. Even though CCAFS/KSC is
the world's busiest spaceport, the record of LLCC evaluations is not detailed
enough to create the climatology. As a potential solution, the research in this
study developed a proxy climatology of LLCC violations by using the long
continuous record of surface electric field mills at CCAFS/KSC.
