netcdf ncep/rtma/202505/202505_rtma_precip.grb2 {
  dimensions:
    x = 420;
    y = 370;
    time = 742;
    altitude_above_msl = 1;
  variables:
    int LambertConformal_Projection;
      :grid_mapping_name = "lambert_conformal_conic";
      :latitude_of_projection_origin = 25.0; // double
      :longitude_of_central_meridian = 265.0; // double
      :standard_parallel = 25.0; // double
      :earth_radius = 6371200.0; // double

    float x(x=420);
      :standard_name = "projection_x_coordinate";
      :units = "km";

    float y(y=370);
      :standard_name = "projection_y_coordinate";
      :units = "km";

    double time(time=742);
      :units = "Hour since 2025-04-30T23:00:00Z";
      :standard_name = "time";
      :long_name = "GRIB forecast or observation time";
      :calendar = "proleptic_gregorian";
      :bounds = "time_bounds";

    double time_bounds(time=742, 2);
      :units = "Hour since 2025-04-30T23:00:00Z";
      :long_name = "bounds for time";

    double reftime(time=742);
      :standard_name = "forecast_reference_time";
      :long_name = "GRIB reference time";
      :calendar = "proleptic_gregorian";
      :units = "Hour since 2025-04-30T23:00:00Z";

    float altitude_above_msl(altitude_above_msl=1);
      :units = "m";
      :long_name = "Specific altitude above mean sea level";
      :positive = "up";
      :Grib_level_type = 102; // int
      :datum = "mean sea level";

    float Total_precipitation_altitude_above_msl_1_Hour_Accumulation(time=742, altitude_above_msl=1, y=370, x=420);
      :long_name = "Total precipitation (1_Hour Accumulation) @ Specific altitude above mean sea level";
      :units = "kg.m-2";
      :abbreviation = "APCP";
      :missing_value = NaNf; // float
      :grid_mapping = "LambertConformal_Projection";
      :coordinates = "reftime time altitude_above_msl y x ";
      :Grib_Statistical_Interval_Type = "Accumulation";
      :Grib_Variable_Id = "VAR_0-1-8_L102_I1_Hour_S1";
      :Grib2_Parameter = 0, 1, 8; // int
      :Grib2_Parameter_Discipline = "Meteorological products";
      :Grib2_Parameter_Category = "Moisture";
      :Grib2_Parameter_Name = "Total precipitation";
      :Grib2_Level_Type = 102; // int
      :Grib2_Level_Desc = "Specific altitude above mean sea level";
      :Grib2_Generating_Process_Type = "Forecast";
      :Grib2_Statistical_Process_Type = "Accumulation";

  // global attributes:
  :Originating_or_generating_Center = "US National Weather Service, National Centres for Environmental Prediction (NCEP)";
  :Originating_or_generating_Subcenter = "Environmental Modeling Center";
  :GRIB_table_version = "1,0";
  :Type_of_generating_process = "Forecast";
  :Analysis_or_forecast_generating_process_identifier_defined_by_originating_centre = "RTMA (Real Time Mesoscale Analysis)";
  :file_format = "GRIB-2";
  :Conventions = "CF-1.6";
  :history = "Read using CDM IOSP GribCollection v3";
  :featureType = "GRID";
}