NDBC’s moored buoys measure and transmit barometric pressure; wind direction, speed, and gust; air and sea temperature; and wave energy spectra from which significant wave height, dominant wave period, and average wave period are derived. Even the direction of wave propagation is measured on many moored buoys.

The list of measurements provided by buoys is rather extensive. Here’s a guide to the various measurements published by NDBC: Wind Direction (WDIR) Wind direction (the direction the wind is coming from in degrees clockwise from true N) during the same period used for WSPD. Wind Speed (WSPD) Wind speed (m/s) averaged over an eight-minute [...]