A headline within National Weather Service high seas forecasts transmitted via the GMDSS to indicate that a hurricane or hurricane force winds are forecast.
- Browse Related Terms: 88D, AMVER/SEAS, Congressional Organic Act of 1890, NAVTEX Forecast, NOAA Weather Radio, NWR, NWSH, Pan Pan, S-Band Radar, Securite, SIGWX, Wind Waves, WX