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WRF Source Codes and Graphics Software Downloads
Before downloading the WRF software for the first time, please read the WRF Public Domain Notice, and then fill-out the registration
form by clicking
on the link to 'New Users' below. After submitting the registration,
you will be prompted to the software download page, which also subscribes
you to the WRF news email list
(with your confirmation). This list is used to broadcast messages regarding WRF updates and events.
If you registered previously, click the link for 'Returning Users' below.
If you are a first-time WRF user, learn
how to use the model via the online
tutorial
To DOWNLOAD, click one of the links below:
New User
Returning User
See below for information on the
current and previous releases:
Current Releases
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Beginning with V4.0 of the WRF/WRFDA/WRF-Chem/WPS code, all release
downloads and corresponding information will be available from our public WRF-Model Release
page on GitHub.
Please click on "New User" or "Returning User" above to access the page.
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Version 3.9.1.1
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Release Date:
August 28, 2017
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WRF-ARW
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Details
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WPS
*No V3.9.1.1 WPS Release
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Details
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WRFDA
*No V3.9.1.1 WRFDA Release
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Details
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WRF-Chem
*No V3.9.1.1 WRF-Chem Release
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Website
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Version 3.0.1.1
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Release Date:
August 22, 2008
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WRF-ARW
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Details
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No Bug Release 3.0.1.1 for WPS
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WRFDA
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Details
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Version 3.0
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Release Date:
April 4, 2008
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WRF-ARW
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Details
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WPS
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Details
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WRFDA
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**The last WRF model release, prior to version 3, was
V2.2.1 on November 1, 2007. See details.
External packages you may need to run WRF and
graphics programs:
- netCDF for WPS and WRF model: http://www.unidata.ucar.edu/
- NCAR Graphics for NCL and RIP4: http://ngwww.ucar.edu/
Free input data for initializing WRF at
NCAR:
NCAR's Computational Information Systems Laboratory (CISL) is providing a number of datasets archived
at NCAR for the latest year free and they can be otained online.
Free input data for initializing WRF at
NOAA:
The NOAA National Operational Model Archive
and Distribution System (NOMADS) provides near real-time and historical operational model data
via web portal.
Real-time data from NCEP's ftp site:
NCEP provides a variety of regional (NAM) and
global (GFS) data in GRIB format, and they can be used to initialize
WRF in real-time. As of Feb 4 2008, all GFS and NAM data are in grib 2.
For NAM data, a popular dataset is the 40 km
one, which has the following file names: nam.t{00,06,12,18}z.awip3dff.tm00.grib2,
where ff stands for forecast hours. Forecast hours from
0 to 84 are available 4 times daily at 3 hourly interval.
For GFS data, several resolution datasets are available for forecast hours 0 to
384, 4 times daily, at a 6 hour interval. For 0.5 degree data, the file names are
gfs.t{00,06,12,18}z.pgrb2fhh (where hh stands for the forecast hour). For 1 degree data,
the file names are gfs.t{00,06,12,18}.pgrbfhh.grib2. UPDATE: Beginning Jan
7, 2015 (1200 UTC), GFS data has been updated to include 0.25 degree resolution gridded output. The
new file name format is: gfs.tCCz.pgrb2.0p25.fFFF (for 0.25 degree resolution data), and
gfs.tCCz.pgrb2.0p50.fFFF (for 0.5 degree resolution data).
updated 05/22/2025 11:28:13
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