The Ocean Fast layer provides wave, wind, precipitation and pressure content. We choose the best model available for the particular area of the world ocean in which you are interested. Obviously, the Great Lakes model is in play for your Great Lakes wave and met information, then the NDFD for all areas covered by the NDFD and then the WW3 Navy model for all other locations.
Data is available for forecast periods from 1 to 7 days. NDFD and Great Lakes data update at approximately 4, 10, 16 and 2200 UTC. The WW3_Navy model updates at approximately 7 and 1900 UTC
