![](https://inside.nssl.noaa.gov/nsslnews/wp-content/uploads/sites/21/2011/04/3dvar-w-vort-150x150.png)
NWS forecasters will be evaluating a new weather-adaptive three-dimensional variational data assimilation (3DVAR) system from NSSL/CIMMS that automatically detects and analyzes supercell thunderstorms during the 2011 Experimental Warning Program in the Hazardous Weather Testbed.