....
There is a standard height for measuring "surface" wind speeds. I've
forgotten what it is but I think it is 33 feet.
....

That's right, 10 meters is the "standard" in most models for surface
winds. From the GRIB standard definitions: "Wind Speed is the
expected sustained 10 meter wind speed (in knots) ..." The very
pointed headed folk can argue about what that 10 meters is above, but
"mean sea level" will do. Reporting stations just report the wind as
they measure it at their instrument and don't correct for height.
NOAA generally does average wind speeds over two minutes to get
sustained winds. Hence the wind/gust format for buoy reports.

-- Tom.