AbstractThe third generation spectral wave model WAM Cycle 4.6 has been adapted to the Black Sea area und runs successfully on the Sun-Cluster at HZG. The shallow water version is implemented on a spherical grid with a spatial resolution of about 3 km (133 * 100 sec) with 24 directional and 30 frequency bins. The number of active wave model grid points is 44699. The model takes into account depth refraction and wave breaking and provides currently a ten days forecast with one-hourly output once a day. The atmospheric forcing is taken from ECMWF in NetCDF and locally (on HZG server) transformed into WAM format forcing, following the PQWG metrics definitions.