WPC QPF GRIB Files



  • The WPC makes available its Day 1-3 6-hourly QPF files in GRIB 1 format at 32km resolution. The GRIB files are available for download via the NCEP anonymous FTP server (ftp.hpc.ncep.noaa.gov), under:

    /grib/ccYYMMDD

    where: cc = century; YY = year; MM = month; DD = day.

  • The files use the following naming convention:

    p06m_ccYYMMDDhhfFFF.grb

    where: cc = century; YY = year; MM = month; DD = day;
    hh = hour valid from (00, 06, 12, 18); FFF = forecast hour.

    For example, p06m_2000032112f060.grb represents the 6-hourly QPF from 54-60 hours from the 03/21/2000 1200 UTC cycle.  By default, QPF GRIB data are coded in millimeters.

  • 24-hour Day 3 (p24m_ccYYMMDDhhf072.grb),
    48-hour Days 4-5 (p48m_ccYYMMDDhhf120.grb),
    and 5-day total (p120m_ccYYMMDDhhf120.grb)
    are also available for download.



   Additional information about GRIB 1 format: