65th Interdepartmental Hurricane Conference Miami, Florida February 28 - March 3, 2011 Hurricane Earl:September 2, 2010 Ocean and Atmospheric Influences on Tropical Cyclone Predictions: Challenges and Recent Progress S E S S Session 2 I The 2010 Tropical Cyclone Season in Review O N 2 The 2010 Atlantic Hurricane Season: Extremely Active but no U.S. Hurricane Landfalls Eric Blake and John L. Beven II (
[email protected]) NOAA/NWS/National Hurricane Center The 2010 Atlantic hurricane season was quite active, with 19 named storms, 12 of which became hurricanes and 5 of which reached major hurricane intensity. These totals are well above the long-term normals of about 11 named storms, 6 hurricanes, and 2 major hurricanes. Although the 2010 season was considerably busier than normal, no hurricanes struck the United States. This was the most active season on record in the Atlantic that did not have a U.S. landfalling hurricane, and was also the second year in a row without a hurricane striking the U.S. coastline. A persistent trough along the east coast of the United States steered many of the hurricanes out to sea, while ridging over the central United States kept any hurricanes over the western part of the Caribbean Sea and Gulf of Mexico farther south over Central America and Mexico. The most significant U.S. impacts occurred with Tropical Storm Hermine, which brought hurricane-force wind gusts to south Texas along with extremely heavy rain, six fatalities, and about $240 million dollars of damage. Hurricane Earl was responsible for four deaths along the east coast of the United States due to very large swells, although the center of the hurricane stayed offshore.