The WPC International Desks use
the freeware WINGRIDDS (winweather.org)
for the analysis of GFS Model data,
due to its versatility and easy installation/operation on Windows platforms.
*Note: This executable will install the Wingridds Version (3.2) used at the WPC International Desks.
This version includes several macros/scripts and variables used for weather forecasting
at the desks. An example is the Galvez-Davison Index. To download GFS data using this version
you will need to use the following set of programs and place
them in C:/WINGRIDDS/datosector_gfs/en . You might need to adjust your scripts so they
grab the date from the computer correctly. Please refer to our
for detailed instructions.
Downloading model data from the NOMADS Server
is a versatile tool to download GFS model data from
the NOMADS server. It allows choosing horizontal resolution
(among 1, 0.5 and 0.25°) and forecasting cycle (00, 06, 12 and 18 UTC).
Courtesy of Juan Jose Amides Figueroa from MARN (El Salvador).
The program needs to be installed in C:\WINGRIDDS\datosector_gfs\en .
It uses the program
to connect to the ftp server, and should be placed in
the same directory as Easy_GFS_Download_v1.7.cmd .
Macros/Algorithms developed by the WPC International Desks
The WPC International Desks have developed several algorithms/macros
to enhance weather forecasting practices. A description of some of
these macros and the files needed for their installation is available
The current output of operational algorithms/macros applied into
GFS 00 and 12 UTC forecast cycles is available via this
Most recent update: JMG, 13 September 2017