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Grib2 file or date problem, stopping in edition_num.


New member
I am trying to execute ungrib.exec and I am getting below error
*** Starting program ungrib.exe ***
Start_date = 2022-09-12_00:00:00 , End_date = 2022-09-12_06:00:00
output format is WPS
Path to intermediate files is ./
ERROR: Grib2 file or date problem, stopping in edition_num.

I am using files of the above data and the files 3 in total are around 150 MBs each.
Kindly help to resolve the issue

The namelist.wps is as below

wrf_core = 'ARW',
max_dom = 1,
start_date = '2022-09-12_00:00:00',
end_date = '2022-09-12_06:00:00',
interval_seconds = 21600
io_form_geogrid = 2,


  • ungrib.log
    652 bytes · Views: 4
  • geogrid.log
    11.5 KB · Views: 0
Can you attach your full namelist.wps file, and will you please issue the following:
ls -ls GRIBFILE* >& gribfile.log

and attach gribfile.log, as well? Thanks!
Thanks for replying.
I am past this error. I am now facing the error in executing real.exe.
I am attaching all the required files to get an idea of the error which I am not able to decode.


  • namelist.wps
    705 bytes · Views: 4
  • namelist.input
    3.9 KB · Views: 0
  • rsl.error.0000
    1.7 KB · Views: 0
  • real.log
    374 bytes · Views: 0
Since this is a new question/problem, will you please post a your new question again in the WRF section of the forum? Thanks!