Metgrid error

[VORTEX]

Hi,

I am using NAM data which is grib2 format without changing it to grib1 format. I compiled WPS in serial I linked georgic-nmm, nam-vtable and metgrid viable-nmm but I am getting this error
ERROR: In entry 65 of METGRID.TBL, the wind U-component field must be interpolated to the V staggered grid points.
FORTRAN STOP

Thanks,

[ohihi]

i got this problem too,
i'm try to run HWRF v3.6a.
i know this problem cause to U and V should be interpolated to the V staggered grid points.
but i don't know how to modify METGRID.TBL
the section about U ans V as below:
=============================
#name=U ; output_name=UU # If we get U, use entry from UU and
# write the field out as UU
========================================
#name=UU
# mandatory=yes # MUST HAVE THIS FIELD
# interp_option=sixteen_pt+four_pt+average_4pt
# is_u_field=yes
# output_stagger=U
# fill_missing=0.
# fill_lev=200100:const(-1.E30)
#========================================
#name=V ; output_name=VV # If we get V, use entry from VV and
# # write the field out as VV
#========================================
#name=VV
# mandatory=yes # MUST HAVE THIS FIELD
# interp_option=sixteen_pt+four_pt+average_4pt
# is_v_field=yes
# output_stagger=V
# fill_missing=0.
# fill_lev=200100:const(-1.E30)
========================================


right now i was remove this part. and metgrid.exe works.
and log show
2014-11-27 15:36:58.229 --- WARNING: Entry in METGRID.TBL not found for field VV. Default options will be used for this field!
i'm not sure that's right way to solve this problem.
Dose anyone could told me how to solve this problem?
thanks.

[takong]

I feel you got that error because you used the default METGRID.TBL (which is prepared for the ARW core) file which was found in the metgrid directory when you installed WPS. You are now running the NMM core. So you need to copy the METGRID.TBL.NMM to METGRID.TBL before running metgrid.exe.

In fact, using WRF3.7.1, I ran into a similar problem. Particularly "ERROR: In entry 69 of METGRID.TBL, the wind U-component field must be interpolated to the V staggered grid points.". So I simply did as I earlier indicated above and the problem was solved.

[Jay sambho]

I am also suffering same problem despite of changing metrid to metgrid.tbl.nmm. i think removing uu and vv is not the solution.