How to Ingest and Display Text Products into GEMPAK

GEMPAK can display Operational Forecast Discussions, NWS Severe Weather Watches & Warnings, Aviation Products, Metars, Maritime Data, and others.

Setting up your GEMPAK LDM configuration files

The GEMPAK distribution includes a template script that will have the most current actions included. To see more information regarding this process visit the GEMPAK documentation about this topic.
The information below is only an example of how the ldmd.conf and pqact.conf files may look. Your paths and actions may differ, but the information below should give a general idea on the process as well as descriptions and explanations of some of the terms.

ldmd.conf

How to request text model data via the LDM.

ldmd.conf example entry:


########################################
# Request Entries
########################################
#
# LDM servers request data from Data Sources
#
(request) (feedset) (pattern) (hostname pattern)
request	      WMO     ".*"    idd.unidata.ucar.edu [sample host pattern, yours may differ]

More information regarding the WMO feed and other feedtypes

pqact.conf

How to "act" on the data once it is on disk in the LDM queue.
Reminder: ALL spaces in the pqact.conf file need to be (tabs)!

pqact.conf example entries:


# SPC Products
#
# Severe Weather Outlook (Day 1-3) ACUS0[1-3]
WMO     ^...... .... ([0-3][0-9])([0-2][0-9]).*/pSWODY([0-9])
        FILE    data/gempak/nwx/spc/day\3/(\1:yyyy)(\1:mm)\1\2.day\3
#
# Convective Outlook Areal Outline (Day 1-3) WUUS0[1-3] KWNS
WMO     ^...... .... ([0-3][0-9])([0-2][0-9]).*/pPTSDY([0-9])
        FILE    data/gempak/nwx/spc/day\3/(\1:yyyy)(\1:mm)\1\2.ptsdy\3
#
# Thunderstorm/Tornado Watch Areas + Discussion
WMO     ^WWUS20 .... ([0-3][0-9])([0-2][0-9])
        FILE    data/gempak/nwx/spc/watch/(\1:yyyy)(\1:mm)\1\2.watch
#
# Thunderstorm/Tornado Watch Areas
WMO     ^WWUS30 KWNS ([0-3][0-9])([0-2][0-9])
        FILE    data/gempak/nwx/spc/watch/(\1:yyyy)(\1:mm)\1\2.wtch2
#
# Watch outline update (WOU)
WMO     ^...... .... ([0-3][0-9])([0-2][0-9]).*/pWOU
        FILE    data/gempak/nwx/spc/wou/(\1:yyyy)(\1:mm)\1\2.wou
#
# Public Outlook
WMO     ^WOUS40 .... ([0-3][0-9])([0-2][0-9])
        FILE    data/gempak/nwx/spc/public/(\1:yyyy)(\1:mm)\1\2.public
# International Temp/Precip Summary
WMO     ^ABUS2[3-6] .... ([0-3][0-9])([0-2][0-9])
        FILE    data/gempak/nwx/spc/tp_summ/(\1:yyyy)(\1:mm)\1\2.tp_summ
WMO     ^ABXX0[567] .... ([0-3][0-9])([0-2][0-9])
        FILE    data/gempak/nwx/spc/tp_summ/(\1:yyyy)(\1:mm)\1\2.tp_summ
WMO     ^ABCA01 .... ([0-3][0-9])([0-2][0-9])
        FILE    data/gempak/nwx/spc/tp_summ/(\1:yyyy)(\1:mm)\1\2.tp_summ
WMO     ^FPCN60 .... ([0-3][0-9])([0-2][0-9])
        FILE    data/gempak/nwx/spc/tp_summ/(\1:yyyy)(\1:mm)\1\2.tp_summ
WMO     ^WBCN02 .... ([0-3][0-9])([0-2][0-9])
        FILE    data/gempak/nwx/spc/tp_summ/(\1:yyyy)(\1:mm)\1\2.tp_summ
WMO     ^ABCN01 .... ([0-3][0-9])([0-2][0-9])
        FILE    data/gempak/nwx/spc/tp_summ/(\1:yyyy)(\1:mm)\1\2.tp_summ
# NHC Products
#
# Outlooks
WMO     ^ABNT20 KNHC ([0-3][0-9])([0-2][0-9])
        FILE    data/gempak/nwx/nhc/outlook/(\1:yyyy)(\1:mm)\1\2.outlk
WMO     ^ACPN50 PHFO ([0-3][0-9])([0-2][0-9])
        FILE    data/gempak/nwx/nhc/outlook/(\1:yyyy)(\1:mm)\1\2.outlk
WMO     ^ABPZ20 KNHC ([0-3][0-9])([0-2][0-9])
        FILE    data/gempak/nwx/nhc/outlook/(\1:yyyy)(\1:mm)\1\2.outlk
WMO     ^ABCA33 TJSJ ([0-3][0-9])([0-2][0-9])
        FILE    data/gempak/nwx/nhc/outlook/(\1:yyyy)(\1:mm)\1\2.outlk
WMO     ^ABPW10 PGTW ([0-3][0-9])([0-2][0-9])
        FILE    data/gempak/nwx/nhc/outlook/(\1:yyyy)(\1:mm)\1\2.outlk

Additional Information

For more information, please visit the GEMPAK Home Page.

Please direct any additional questions to support-gempak@unidata.ucar.edu