[gembud] HWRF nested grids

[Michael Nelson]

I am decoding the grids with nagrib, and it is working fine for most
fields.

For the PMSL field,  I am getting a large number of grid points decoding as
a -100 with some lower pressures a couple of grid points in to the real
values.

Is there a method to get these values of -100 to be decoded as missing, and
to smooth out the 2 rows of lower values.


I am getting the data from ftpprd.ncep.noaa.gov.   Directory
/pub/data/nccf/com/hur/prod/hwrf.YYYYMMDDCC
File name    stormname.YYYMMDDCC.hwrfprs_n.grb2HH


Any help would be appreciated

Thanks

Michael Nelson
Manager of Meteorology
DTE Energy Trading
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