In the summer of 2005, while the U.S. economy was growing comfortably despite a few longstanding concerns over deficits and outsourcing, storms were brewing off the Gulf Coast. On August 25, 2005, Hurricane Katrina blasted New Orleans, Louisiana, and the surrounding coastal areas in the Gulf of Mexico. Barely a month later, a second storm, Hurricane Rita, swept through the Gulf region to make landfall between Sabine Pass, Texas, and Johnson's Bayou, Louisiana. Speculation over their likely impact on the world energy markets and the U.S. economy began as soon as the hurricanes were forecast to strike the oil-rich Gulf region. This case documents the paths of the storms and provides a summary of the Congressional Budget Office's estimates of the storms' impact on the U.S. economy. It is designed for use in the first year Global Economies and Markets course to teach the concept of national income accounts. It can also be used to analyze the impact of exogenous shocks.