This invention is a method of advanced contingency analysis visualization for power grid operations. It converts the large volume of contingency analysis results to a visual space and presents the results as user-friendly color-contoured maps. This novel visualization method unloads overwhelmed power grid operators from examining raw data and enables them to focus on critical portions of the grid and respond to adverse situations in a timely manner. The major point of novelty of this invention is the visual representation of the analysis results of multiple contingencies, which has not been done in the area of power grid operations. Geographical information is readily included in the visualization techniques. Another point of novelty is the quantitative assessment of risks. Comprehensive analysis of the contingency analysis results is performed and risk indices are derived. This quantitative risk assessment is not available in today’s tool. The developed visualization and analysis reveals the vulnerability of the power grid which otherwise would be buried in the pages and pages of tabular entries.