This report critically evaluates and analyzes data visualization designs, focusing on rain radar and text-based weather visualizations. It examines the structure, meaning, and attributes of the data, including spatial and temporal aspects. The report delves into various classes of techniques, such as scientific versus information visualization, spatial versus non-spatial visualization, and continuous versus discrete data visualization. It discusses the strengths and weaknesses of each technique, providing a comprehensive understanding of their applications. The context provided to the visualizations, including filters, groups, and sets, is also discussed. This analysis aims to assess the effectiveness and clarity of the visualization designs, offering insights into their ability to convey information effectively.