This image shows the wave model output from Oceanweather's Global Forecast as contours of significant wave height (in meters) with vectors representing vector mean direction (to which the waves are traveling). The valid time is given in GMT - Greenwich Mean Time. This image is updated once per day. The winds driving Oceanweather's Global Ocean Wave Model are derived from an assimulation of real-time buoys, ships, CMAN stations, altimeter, and scatterometer measurements along with a background wind field provided from NCEP's Aviation model. The wind observations are incorporated interactively by a skilled marine-meteorologist using Oceanweather's Wind WorkStation. Tropical systems are added to the final wind fields using Oceanweather's Tropical Boundary Layer Model.