Hurricane Storm Surges (IMAGE) University of Copenhagen Caption Storm surges are considered to be the most dangerous and the most destructive aspect of tropical cyclones. The study shows that globally warm years has been associated with a significantly higher risk of extreme hurricane storm surges like the one that followed Katrina, which hit the New Orleans area in 2005 and caused devastating floods and thousands of deaths. Credit Credit: LCDR Mark Moran, NOAA Corps, NMAO/AOC Usage Restrictions Credit required License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.