Yup. Buoys.I mention buoys to people here and I get confused looks. Closest buoy to me is 170 NM away so a good 8 hours or so for wave travel time. That makes the buoy the best forecast tool and real time indicator for anything within 8 hours.
After you watch the buoys for years on end, you know what swells do what and where to go.
Why would you gt buoy data anywhere other than NDBC?
Get the raw data and combine that with your experience of how these swell/wind/tide conditions manifest themselves at the spots you surf, then go down there and fucking look.