The content provided on this page supports model
development. These are not official NWS products and
should not be relied upon for operational purposes. This
web site is not subject to 24/7 support, and thus may be
unavailable during system outages.
Operationally generated graphics of the wave fields (no
spectra or source terms) are available from
Model Analyses and Guidance.
Bulletin files are available from the
Production FTP/HTTPS server.
Look for gfs.YYYYMMDD/CC/wave/station/bulls.tCCz/gfswave.stationID.bull
The wind sea period identifies
the period (the time between waves) of the locally generated waves (in cases
with strong local winds). Note that the peak period field shows discontinuities.
These discontinuities can loosely be interpreted as swell fronts, although
in reality many swell systems overlap at most locations and times.