Grlevelx

GRLevelX is a suite of data processing and display programs developed by Gibson Ridge Software, LLC (GRS), to view weather radar data. It went on the market in March 2005. It comes in three versions, all of which ingest raw data: GRLevel2 and GRLevel2 Analyst Edition for viewing Level II data of the National Weather Service, and GRLevel3 for viewing Level III data. Both program lines feature high speed, high quality displays with an intuitive user interface. All programs are capable of rendering dual polarization data.

The software allows the user to view real time data and analyze it on spot. It also can load archive data stored locally or over the internet. It is used by professional forecasters and researchers for general precipitation analysis as well as severe storm, tornado, and tropical cyclone monitoring and analysis. Its usage base grew to include many television weathercasters, including by The Weather Channel severe storms expert Greg Forbes, as well as storm chasers, storm spotters, emergency managers, weather enthusiasts, and is often used within the NWS, itself.

GRLevel2 Analyst Edition allows the user to take a 3D images of precipitation within clouds, such as in supercell thunderstorms. It's integrated algorithms flag possible hail, tornado vortex signatures, and mesocyclones.

All GRx applications are written in multithreaded C++ using the base Windows APIs. Software engineer Michael Scott Gibson wrote the programs.