This analysis explores the NOAA Storm Database to determine which weather event types are most harmful to population health and which cause the greatest economic damage in the United States. Population health impact is measured using fatalities and injuries, while economic consequences are calculated from property and crop damage. The analysis starts from the raw compressed CSV file and performs necessary data transformations inside this document. Results show that tornadoes are the leading cause of fatalities and injuries. Floods and hurricanes cause the largest economic damage. These findings can help government officials prioritize preparedness and resource allocation.