WRF

Free Met Data from NCAR

Real-time Data from NCEP

 

 

 

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

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.






Previous Releases

Version 4.0
Release Date:
June 8, 2018
WRF-ARW
Details
WPS
Details
WRFDA
Details
WRF-Chem
Website
Version 3.9.1.1
Release Date:
August 28, 2017
WRF-ARW
Details
WPS
*No V3.9.1.1 WPS Release
Details
WRFDA
*No V3.9.1.1 WRFDA Release
Details
WRF-Chem
*No V3.9.1.1 WRF-Chem Release
Website
Version 3.9.1
Release Date:
August 17, 2017
WRF-ARW
Details
WPS
Details
WRFDA
Details
WRF-Chem
Website
Version 3.9
Release Date:
April 17, 2017
WRF-ARW
Details
WPS
Details
WRFDA
Details
WRF-Chem
Website
Version 3.8.1
Release Date:
August 12, 2016
WRF-ARW
Details
WPS
Details
WRFDA
Details
WRF-Chem
Website
Version 3.8
Release Date:
April 8, 2016
WRF-ARW
Details
WPS
Details
WRFDA
Details
WRF-Chem
Website
Version 3.7.1
Release Date:
August 14, 2015
WRF-ARW
Details
WPS
Details
WRFDA
Details
WRF-Chem
Website
Version 3.7
Release Date:
April 17, 2015
WRF-ARW
Details
WPS
Details
WRFDA
Details
WRF-Chem
Website
Version 3.6.1
Release Date:
August 14, 2014
WRF-ARW
Details
WPS
Details
WRFDA
Details
WRF-Chem
Website
Version 3.6
Release Date:
April 18, 2014
WRF-ARW
Details
WPS
Details
WRFDA
Details
WRF-Chem
Website
Version 3.5.1
Release Date:
September 23, 2013
WRF-ARW
Details
WPS
Details
WRFDA
Details
WRF-Chem
Website
Version 3.5
Release Date:
April 18, 2013
WRF-ARW
Details
WPS
Details
WRFDA
Details
WRF-Chem
Website
Version 3.4.1
Release Date:
August 16, 2012
WRF-ARW
Details
WPS
Details
WRFDA
Details
WRF-Chem
Website
Version 3.4
Release Date:
April 6, 2012
WRF-ARW
Details
WPS
Details
WRFDA
Details
WRF-Chem
Website
Version 3.3.1
Release Date:
September 22, 2011
WRF-ARW
Details
WPS
Details
WRFDA
Details
WRF-Chem
Website
Version 3.3
Release Date:
April 6, 2011
WRF-ARW
Details
WPS
Details
WRFDA
Details
WRF-Chem
Website
Version 3.2.1
Release Date:
August 18, 2010
WRF-ARW
Details
WPS
Details
WRFDA
Details
WRF-Chem
Website
Version 3.2
Release Date:
April 2, 2010
WRF-ARW
Details
WPS
Details
WRFDA
Details
WRF-Chem
Website
Version 3.1.1
Release Date:
July 31, 2009
WRF-ARW
Details
WPS
Details
WRFDA
Details
WRF-Chem
Website
Version 3.1
Release Date:
April 9, 2009
WRF-ARW
Details
WPS
Details
WRFDA
Details
WRF-Chem
Website
Version 3.0.1.1
Release Date:
August 22, 2008
WRF-ARW
Details
No Bug Release 3.0.1.1 for WPS
WRFDA
Details
Version 3.0.1
Release Date:
August 6, 2008
WRF-ARW
Details
WPS
Details
WRFDA
Details
Version 3.0
Release Date:
April 4, 2008
WRF-ARW
Details
WPS
Details
WRFDA

**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).

 


 
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