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20030103: GEMPAK: plotting forecast visibilities

Patrick,

The RUC2 grids on the Unidata IDD (HRS feed of NOAAPORT, grid 236)
provide VSBY (in meters) on gvcord=none, glevel=0. Use gdinfo
to see what grids are in your grid files.

If you are running the dcnmos decoder for NGM, you will see
FVIS as one of the parameters (use SFPARM=dset in SFLIST to
see all parameters being decoder, or the packing file
$GEMTBL/pack/ngmmos.pack) for sfgram.

Steve Chiswell

On Fri, 3 Jan 2003, Patrick O'Reilly wrote:

> Has anyone had a try at this?  I would like to plot visibility as either a
> plan view contoured plot or even as a forecast meteogram.  The only place I
> know I have visibility information is in the MOS files, but I see forecast
> meteograms on the web plotting visibility using NGM and Eta.  I can find
> VSBK/VSBY in SFPARM, but cannot find any visibility parameter either in the
> grids or as a GEMPAK parameter for grid data.  Thanks for any direction you
> may be able to point me in.
>
> Patrick
> _______________________________________
> Patrick O'Reilly
> Meteorological Decision Support Scientist
> The STORM Project - University of Northern Iowa
> address@hidden  ~  ph: 319-273-3789
> http://www.uni.edu/storm
>