May 22, 2007
NOAA’s 2007 Atlantic hurricane season outlook indicates a very high 75% chance of an above-normal hurricane season, a 20% chance of a near-normal season, and only a 5% chance of a below-normal season. This outlook is produced by scientists at the National Oceanic and Atmospheric Administration (NOAA) Climate Prediction Center (CPC), National Hurricane Center (NHC), Hurricane Research Division (HRD), and Hydrometeorological Prediction Center (HPC). See NOAA definitions of above-, near-, and below-normal seasons.
The outlook calls for a very high likelihood of an above-normal hurricane season, with 13-17 named storms, 7-10 hurricanes, and 3-5 major hurricanes. The likely range of the ACE index is 125% to 210% of the median. This prediction signifies an expected sharp increase in activity from the near-normal season observed in 2006.
The prediction for an above-normal 2007 hurricane season reflects the expected combination of two main climate factors: 1) the continuation of conditions that have been conducive to above-normal Atlantic hurricane seasons since 1995, and 2) the strong likelihood of either ENSO-neutral or La Niña conditions in the tropical Pacific Ocean.
An updated Atlantic hurricane outlook will be issued in early August, which begins the peak (August-October) of the hurricane season.