 Hurricane Katrina is estimated as the second-costliest tropical cyclone worldwide, causing $81.2 billion in property damage (2008 USD) alone, with overall damage estimates exceeding $100 billion (2005 USD).Katrina killed at least 1,836 people after striking Louisiana and Mississippi as a major hurricane in August 2005.Hurricane Maria is the third most destructive tropical cyclone in U.S. history, with damage totaling $91.61 billion (2017 USD), and with damage costs at $68.7 billion (2012 USD), Hurricane Sandy is the fourth most destructive tropical cyclone in U.S history.