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    <p>Thank you Dennis.  Unfortunately, I still just get the error
      message, so apparently it's something peculiar to my machine.  I
      wonder if there could possibly be something wrong in the way I've
      configured NCL? <br>
    </p>
    <p>I could update to the latest version of NCL.</p>
    <p>Jim<br>
    </p>
    <br>
    <div class="moz-cite-prefix">On 07/19/2018 06:53 PM, Dennis Shea
      wrote:<br>
    </div>
    <blockquote type="cite"
cite="mid:CAOF1d_55BRqJ=FUCktnnnVtumDJDAJGwoAp1VU7gBT7DdASRRA@mail.gmail.com">
      <div dir="ltr">
        <div>Jim<br>
          <br>
        </div>
        NCL 6.3.0 handles the WRF grib2 file just fine [well,  99%]. <br>
        <br>
        %> <b>ncl_filedump</b> 1807190600_wrfout_arw_d02.grb2  <b>|
          less</b><br>
        <div><br>
        </div>
        <div>There is only <b>one initial time</b>  and <b>one
            forecast time</b> on the file. If you want single dimension
          included in the dimensioning:<br>
          <br>
          %> <b>ncl_filedump</b> 1807190600_wrfout_arw_d02.grb2 <b>-itime</b>
          <b>-ftime</b>  <b>| less</b><br>
          <br>
          %> <b>ncl_filedump</b> 1807190600_wrfout_arw_d02.grb2 <b>-itime</b>
          <b>-ftime</b>   >&!   out.<b>630_itime_ftime</b>.1807190600_wrfout<wbr>_arw_d02<br>
          <br>
        </div>
        <div>Within an NCL script:   <a
href="https://www.ncl.ucar.edu/Document/Functions/Built-in/setfileoption.shtml"
            moz-do-not-send="true">https://www.ncl.ucar.edu/Document/Functions/Built-in/setfileoption.shtml</a><br>
          <br>
             <b>setfileoption</b>("grb","SingleEle<wbr>mentDimensions","Initial_time"<wbr>)<br>
        </div>
        <div>or<br>
             <b>setfileoption</b>("grb","SingleEle<wbr>mentDimensions",
          (/"Initial_time","Forecast<wbr>_time"/))<br>
          <br>
        </div>
        <div><br>
          ===<br>
        </div>
        <div>I have also tried the recently released 6.5.0<br>
          <br>
        </div>
        <div>You get the exact same result.<br>
          <br>
          ===<br>
        </div>
        <div>NOTE:<br>
        </div>
        <div><br>
        </div>
        <div><br>
          [a]  Some of the descriptive attributes:<br>
          <br>
                float <b>REFC_P8_L10_GLC0_max30min</b> (
          initial_time0_hours, ygrid_0, xgrid_0 )<br>
                   center :       US National Weather Service - NCEP
          (WMC)<br>
                   production_status :    Operational products<br>
                   long_name :    Composite reflectivity<br>
                   units :        dB<br>
                   _FillValue :   1e+20<br>
                   coordinates :  gridlat_0 gridlon_0<br>
                   grid_type :    Lambert Conformal can be secant or
          tangent, conical or bipolar<br>
                   parameter_discipline_and_categ<wbr>ory :   
          Meteorological products, Forecast radar imagery<br>
                   parameter_template_discipline_<wbr>category_number
          :        ( 8, 0, 16, 5 )<br>
                   level_type :   Entire Atmosphere<br>
                   level :         0<br>
          <b>         type_of_statistical_processing :       Maximum<br>
                     statistical_process_duration : 30 minutes (ending
            at forecast time)</b><br>
                   forecast_time :        780<br>
                   forecast_time_units :  minutes<br>
          <br>
        </div>
        <div>[b] <b>Warning messages<br>
            <br>
          </b></div>
        <div><b>The variables are unpacked correctly!!<br>
            <br>
          </b></div>
        <div>NCL uses look-up tables to match-up parameter id numbers
          with information such as lon_name, units, etc.<br>
        </div>
        <div>Unfortunately, GRIB is a moving target and NCL developers
          are not privy to information or it is just not publicly
          available.<br>
          <br>
        </div>
        <div>So, for example:<br>
        </div>
        <div><br>
          <b>warning: Entry (243)</b> not found in code table file
          /Users/shea/devel/ncl/lib/ncarg/grib2_codetables/ncep/4/4.2.0.1.table<br>
        </div>
        <div>NCL unpacks the variables and creates the appropriate
          dimension names. It just does not have the needed lookup info.<br>
        </div>
        <div><br>
                float <b>VAR</b>_0_1_<b>243</b>_P0_L1_GLC0 (
          initial_time0_hours, ygrid_0, xgrid_0 )<br>
                   center :       US National Weather Service - NCEP
          (WMC)<br>
                   production_status :    Operational products<br>
                   long_name :    unknown variable name<br>
                   units :        unknown<br>
                   _FillValue :   1e+20<br>
                   coordinates :  gridlat_0 gridlon_0<br>
                   grid_type :    Lambert Conformal can be secant or
          tangent, conical or bipolar<br>
                   parameter_discipline_and_<wbr>category :    <b>Meteorological
            products, Moisture</b><br>
                   parameter_template_discipline_<wbr>category_number
          :        ( 0, 0, 1, 243 )<br>
                   level_type :  <b> Ground or water surface</b><br>
                   level :         0<br>
                   forecast_time :        780<br>
                   forecast_time_units :  minutes<br>
          <br>
        </div>
        <div>HTH<br>
        </div>
        <div>D<br>
        </div>
        <br>
      </div>
      <div class="gmail_extra"><br>
        <div class="gmail_quote">On Thu, Jul 19, 2018 at 2:26 PM, Jim
          Means <span dir="ltr"><<a
              href="mailto:jim@weatherextreme.com" target="_blank"
              moz-do-not-send="true">jim@weatherextreme.com</a>></span>
          wrote:<br>
          <blockquote class="gmail_quote" style="margin:0 0 0
            .8ex;border-left:1px #ccc solid;padding-left:1ex">
            <div text="#000000" bgcolor="#FFFFFF">
              <p>Hello,</p>
              <p>I am trying to find out what's inside a grib2 file
                created by WRF, and I'm attempting to use ncl_filedump
                to find out the details. I'm running ncl_filedump with
                no options:</p>
              <p>ncl_filedump 1807190600_wrfout_arw_d02.grb2<br>
              </p>
              <p>and I get</p>
              <p>fatal:NclGRIB2: Invalid Product Definition Template.<br>
                <br>
                Variable: f<br>
                Type: file<br>
                (0) File Missing Value : -1<br>
                <br>
              </p>
              <p>What am I doing wrong?</p>
              <p><br>
              </p>
              <p>Thanks,</p>
              <p>Jim<span class="HOEnZb"><font color="#888888"><br>
                  </font></span></p>
              <span class="HOEnZb"><font color="#888888">
                  <div class="m_-8470552032457726943moz-signature">-- <br>
                    <p
style="text-decoration:none;color:#000000;font-size:13px;font-family:'Roboto',sans-serif;font-weight:700!important">James
                      D. Means, Ph.D.<br>
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