OpenGrADS provides extensions and interfaces for GrADS.
The Grid Analysis and Display System (GrADS) is an interactive desktop tool for easy access, manipulation, and visualization of earth science data. The OpenGrADS Project seeks to develop advanced interfaces and extensions based on the main GrADS engine.
WeatherNET is a software projected devoted to the formation of an open source weather forecasting suite. The primary goal is to produce a product that even professionals would use, although our audience are amateur weather forecasters.
Weather Manager is a content management system focused on weather. You will be able to run sites like Weather.com and Accuweather.com. Version 2 will be extensible with modules and themes. It will come with a set of modules and a valid XHTML theme.