## Meteorology / Convert to ARL / WRF-NMM

This menu item is intended to convert existing North America Mesoscale (NAM) model GRIB files saved on the local computer to the ARL packed data format. The forecast WRF-NMM (NCEP egrd3d) GRIB-1 data files are in their native E-grid hybrid vertical coordinate system. Select any file in the GRIB directory. The "Set File Name" tab on the GUI is used to select any GRIB file within the forecast series. File names for individual forecasts are then constructed by the script based upon the time interval between files and the forecast duration selected. File names will be constructed by assuming that they end with {base}{HH}, where HH is the forecast hour. All files must be in GRIB version 1 format.

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