Betsy made a second landfall near Grand Isle, Louisiana, with estimated winds of 155 mph, a Category 4 hurricane.
Storm surge measured eight feet at Big Pine Key, Florida, also with severe beach erosion along the Southwest Florida coast. Near Grand Isle, Louisiana, the storm surge measured about 16 feet.
The hurricane caused estimated economic losses of USD18.7 billion in 2010 dollars, correcting for wealth and inflation (1).
1. Blake, E.S., Landsea, C.W. and Gibney, E.J., 2011: The Deadliest, Costliest, and Most Intense United States Tropical Cyclones From 1851 to 2010. National Weather Service. NOAA Technical Memorandum NWS NHC-6.