GR2Analyst Version 2

GR2Analyst Version 2 is an advanced Nexrad Level II analysis application. Key features of GR2Analyst are:


Volumetric Display

GR2Analyst's volume rendering engine produces high quality semi-transparent and isosurface 3D displays for any of the base Level II data products (reflectivity, velocity, storm relative velocity, and spectrum width):

May 3, 1999 Moore tornado

With this unprecedented visualization capability, you will see storm structures develop and be able to predict when and where severe weather will impact the ground. 


Using the Volume Renderer


High Resolution Derived Products

GR2Analyst derives five 2D products from the Level II volume reflectivity: Echo Tops, VIL, VILD, POSH, and MEHS. All are displayed on a high resolution radial grid (1km x 1 x 230km with 256 data levels):

High Resolution Echo Tops

In Live mode, each derived product updates as new tilts are received, keeping you informed even in rapidly changing severe weather events.




GR2Analyst Version 2 is available for a 21 day trial period. The trial version is fully functional. Click on the link below to install it on your computer.

GR2Analyst 2 Setup (8.5MB)

Your graphics hardware must support Shader Model 2.0. GR2Analyst will not run without that support. See below for more system requirements information.



GR2Analyst Version 2 can be ordered online at any time. Once you have purchased GR2Analyst, a registration key will be sent to you via email. Select Help->About, click the Register button, paste the registration key into the dialog box, and press OK to remove the trial time limit.

GR2Analyst Version 2 is available from for $250. Fastspring offers a full range of payment options. Click on the button below to purchase a full GR2Analyst 2.00 license via their secure online ordering system. If you already have a GR2Analyst 1.00 license, please see the GR2Analyst 2.00 News section of the Owner forums for information on upgrading to 2.00.

Please evaluate GR2Analyst with the 21 day free trial before purchasing as there are no refunds once a purchase is made.


Note: If you intend to use GR2Analyst 2.00 for TV station operations, please contact [email protected] for full details before purchasing. GR2Analyst is only available as a non-exclusive license. GR2Analyst is not available for purchase by TV stations in the following markets:

Note: all GRS applications are distributed electronically. There is no boxed product. You must allow email from and through in order to purchase, register, and sign up on the Owner forums. GRS is not responsible for lost electronic key delivery due to "spam blockers" or other email interference applications. GRS will not make special efforts to communicate with you should a "blocked" reply come your email host.

Note: you must run with administrator privileges in order to enter your registration key(s).


System Requirements

GR2Analyst has significant system requirements:

With the exception of the volume renderer, most shader model 2.0 video cards will be sufficient to run GR2Analyst. The volume renderer is both CPU and GPU intensive. Recommended requirements for the volume renderer: