Abstract: A high performance real-time interactive exploration and visualization tool brings massive amounts of 4-D data, including output from multiple environmental forecast models as well as different data from different observations, in one place. Server side architecture provides a real-time stream processing system utilizing server-based Graphical Processing Units (GPU's) for data processing, wavelet based compression, and other preparation techniques for visualization, to minimize the bandwidth and latency for data delivery to end-users. Client side users interact through the visualization application developed using the Unity game engine and takes advantage of the GPU's allowing a user to interact with large data sets in real time.