This report will explore the U.S. National Oceanic and Atmospheric Administration's (NOAA) storm database. This database contains characteristics of major storms and weather events in the United States during 1950-2011. This report will find answer for two questions. 1. Which types of events are most harmful with respect to population health? 2. Which types of events have the greatest economic consequences? This report is part of a course project for Reproducible Research on Coursera.