NOAA Wavewatch III Wave Model (NOAA OMB). This is the best wave model yet produced by anyone. Graphically displays both swell height, swell period and direction for all oceans. Also predicts significant seas, swell height and period for up to 6 swells hitting simultaneously for most buoys across the globe. Has very accurate swell propagation algorithms. This model is driven by the AVN Atmospheric Model. (Note: Data readings are in meters. Multiply readings times 3.28084 to convert to feet. Data updated 2 times daily.)
NOAA Wavewatch III Wave Model (Scripps Research Institute) This site provides different views of the predictions made by the Wavewatch III Wave Model.