NOAA NCEP GFS Wave 0.16° regional forecast

NOAA NCEP’s GFS-Wave couples atmospheric forcing from the Global Forecast System with WAVEWATCH III. The 0.16° product distributed by Open-Meteo combines higher-resolution regional grids between 52.5°N and 15°S, publishes hourly values, updates every six hours and reaches 16 days. La Bouée selects this grid where its regional coverage applies and exposes wave height, period and direction at supported forecast locations. It is numerical guidance, not an observation. The 0.16° label describes an approximately 16 km grid and does not resolve every reef, headland or nearshore depth; uncertainty increases with forecast range.