NCAS-M Beltsville generates real-time, 3-day weather forecasts 4 times per day
(0, 6, 12, and 18 UTC) using the Weather Research and Forecasting (WRF) model to support real-time forecasting in the DC Area. The model forecast is generated using a high performance computer cluster. Our WRF model (v3.9) configuration includes:
- YSU turbulence
parameterization
- WDM6 microphysics
- RRTM longwave radiation
- Dudhia shortwave radiation
- Noah land-surface model
- 1 km horizontal grid scale
- 41 vertical levels
- Digital Filtering at model start
- Four Dimensional Data Assimilation with observation nudging for first 1 h and 40 min using publicly available weather observations from surface, upper air, ship buoys, and satellites.
- The model uses the HRRR (3-km) for initial and lateral boundary conditions for the first 18 hours, and the NAM 218 (12 km) for hours 18-72.
Acknowledgements: We acknowledge all suppliers of datasets employed in this research.
