UEMS/WRF EMS Unofficial Forums

Hi all,

I am happy that I found this forum. I have problem when running ems_prep (metgrid.exe). I would like to use wrfout files as inputs of an other one ( --dset wrf which uses the wrf_gribinfo.conf file) When I am running the version 3.1.1.4.26.beta I have no problem, but whit the newer versions (3.1.1.5.0 and 3.1.1.5.1) I have the following error messages:

IV. Horizontal interpolation of the intermediate files to the computational domain
EMS ERROR : In metgrid - This is not looking good!
See:
/home/wrf/wrfems/runs/probe_nmm/log/prep_metgrid.log
For more information.
! A little help from your friend
The log files from your failed run have been written to:
/home/wrf/wrfems/runs/probe_nmm/log/2010031208.metgrid_crash_logs.

At the end of the prep_metgrid.log is the error message:

At the end of the prep_metgrid.log is the error message:

INFORM: Field LANDSEA.mask does not have a valid mask and will not be checked for missing values
WRF_DEBUG: Warning DIM 4 , NAME num_metgrid_levels REDIFINED by var VV 40 39 in wrf_io.F90 ine 2424
ERROR: Error in ext_pkg_write_field

And in the prep_metgrid2.log file:
2010-03-12 09:38:30.718 --- INFORM: Field LANDSEA.mask does not have a valid mask and will not be checked for missing values
2010-03-12 09:38:30.740 --- Initializing output module.
2010-03-12 09:38:30.789 --- ERROR: Error in ext_pkg_write_field

Please tell me what is going wrong. Why the newer versions have this problem or what I am doing wrong?

I would apritiate any kind of help.
Thank you in advance.

Robert

It has been solved...

Hi
I'm doing save test as you, and recieve the same problem.
Could you tell me how to solve this problem?

my email： xuehaile@kuweather.com

Hi. I also get the same error when I tried to run with NCEP/GDAS 0.25 degree data for September 2019. Geogrid and ungrib run are successful, but when I run the metgrid the error message given below appears. Thank you for any help.


Processing domain 1 of 3
Processing 2019-09-08_00
FILE
ERROR: Error in ext_pkg_write_field

I use WRF 3.7 version.

How to fix?
This is because the GFS data was updated in June 2019 with a new format (solution credit of this link, retrieved 12/9/2019).

The solution is rather simple: compile the version 4.0 of the WRF PreProcessing System (WPS) and use ungrib.exe from there. You don’t need to change the Vtable or anything else in your existing 3.x WRF+WPS installation. After this step, copy the files to the WPSv3 and run ./metgrid.exe.