Dr Lian Xie of the Department of Marine, Earth, and Atmospheric Sciences, at NC State University and other collaborators recently released their 2011 Atlantic Tropical Cyclone Outlook.
In short, the Atlantic hurricane season is forecast to be more active than the 1950-2000 average, but slightly less than the 2010 season. The forecast number of tropical cyclones (tropical storms and hurricanes) developing in the Atlantic basin is 13-16 (1950-2000 average: 9.6). While the forecast number of hurricanes developing in the Atlantic basin is 7-9 (1950-2000 average: 6). A chart from Wikipedia highlighting last year’s predictions and observed activity in the Tropical Atlantic is shown below.
Highlights of the forecast are available at this URL
The complete 20 page report is available at this URL