How to Ingest and Display Text Products into GEMPAK

Unidata - To provide the data services, tools, and cyberinfrastructure leadership that advance Earth system science, enhance educational opportunities, and broaden participation.

DataToolsCommunityDownloadsSupportProjectsAbout Us

•

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

How to set 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 vistit 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 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]

For more information regarding the WMO feed and other feedtypes, please visit: 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

GEMPAK Home Page

If you have additional questions they should be directed to:
support-gempak@unidata.ucar.edu

Contact Us • Site Map • Search • Terms and Conditions • Privacy Policy • Participation Policy

Unidata is a member of the UCAR Office of Programs, is managed by the University Corporation for Atmospheric Research, and is sponsored by the National Science Foundation.

P.O. Box 3000 • Boulder, CO 80307-3000 USA • Tel: 303-497-8643 • Fax: 303-497-8690