This is a list of costliest Atlantic hurricanes. Hurricanes, as defined by the National Oceanic and Atmospheric Administration (NOAA), are tropical cyclones—a warm-core, non-frontal synoptic-scale cyclone, originating over tropical or subtropical waters with organized deep convection and a closed surface wind circulation about a well-defined center—in the Atlantic, Caribbean Sea, Gulf of Mexico, or eastern Pacific, in which the maximum 1-minute sustained surface wind exceeds 64 kts (74 mph) or greater. The hurricanes on the list below depict the severity of the damage the system has caused. Typically, if a hurricane has caused significant damage to a particular location, it is requested to be retired by the region the system affected. The costliest hurricane ever recorded in the Atlantic was Hurricane Katrina, which struck the coastline of Louisiana in August 2005, causing $108 billion (2005 USD) in property damage. The most recent, costliest hurricane was Hurricane Sandy, which struck the coastlines of Jamaica, Cuba and New Jersey causing $68 billion in total cost (2012 USD) in late October 2012.