plotting two files with different variables

[Jason Snyder]

To Whom it May Concern,

I have two wind files from NCEP, one with zonal wind data and another with
meridional wind data.  I am trying to open both files in grads and use
data from both files to calculate overall wind magnitude and direction.
How do I open both files so that I can utilize the data from these files
simulataneously?

For example if I have a zonal wind file uwnd.2008.nc with a variable uwnd
and a meridional wind file vwnd.2008.nc with a variable vwnd.  How do I
open both these files so that I can display both uwnd and vwnd?

Thanks,

Jason Snyder