Data Transfer: HRRR Sub-Hourly Forecasts

g2sub V1.1

g2subset (grib2 subset) allows you to subset (time, field, level, or region) a GRIB2 file and sends you the result
 
Directory:   /hrrr.20250710/conus

**NEW** Select one file only (size in bytes)

GRIB Filter

For GRIB data you have to option to filter the data.

Extract Levels and Variables

You may select some or all levels and variables. The selections below represent common choices which may or may not be relevant to the files that you have selected. For example choosing RH (relative humidity) would be pointless in file of sea-surface temperatures. In addition, not all possibilities are allowed. For example, suppose you only want the virtual temperature at the tropopause at 01Z. In this case you'd have to transfer the entire file.

For GRIB-2 data only.

Select the levels desired:
 all     1000 m above ground    10 m above ground    2 m above ground    4000 m above ground    5000-2000 m above ground    80 m above ground    cloud base    cloud ceiling    cloud top    entire atmosphere    surface    top of atmosphere  

Select the variables desired:
 all     APCP    CFRZR    CICEP    CPOFP    CRAIN    CSNOW    DLWRF    DPT    DSWRF    FROZR    GUST    HGT    PRATE    PRES    REFC    REFD    RETOP    SBT113    SBT114    SBT123    SBT124    SPFH    TCOLI    TCOLW    TMP    UGRD    ULWRF    UPHL    USWRF    VBDSF    VDDSF    VGRD    VIL    VIS    WEASD    WIND  

Extract Subregion

File transfer times can be reduced by only transferring a subregion. You can use this section to extract a geographic subsection from a most GRIB files. Use negative numbers for south and west.
make subregion  left longitude right longitude
top latitude bottom latitude

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