HRRR gridded output is used as input to an automated convective weather forecast product known as CoSPA. During the summer of 2011, an operational performance evaluation of CoSPA was conducted by the FAA to assess its impact on air traffic management (ATM) decision-making.
In this presentation, we will include an update of the changes implemented in the real-time HRRR model for 2011, including the adoption of the RR as a parent mesoscale model, along with results from an in-house assessment of HRRR model forecasts. Forecast evaluation from 2011 will include both the cool-season and warm-season and include verification of ATM related fields including ceiling, visibility, surface winds and reflectivity (convection).
Evaluation of model changes will include regional, diurnal (valid-time) lead-time, and multi-scale stratification of verification statistics. Case studies highlighting comparisons of the HRRR with the coarser-resolution parent model (RUC and/or RR) will be presented.
This research is partially in response to requirements and funding by the Federal Aviation Administration (FAA). The view expressed are those of the authors and do not necessarily represent the official policy or position of the FAA.