The National Oceanic and Atmospheric Administration (NOAA) has announced to America and its neighbors throughout the north Atlantic region that a very active hurricane season is looming, and encouraged individuals to make preparations to better protect their lives and livelihoods. May 21-27 was National Hurricane Preparedness Week.
The north Atlantic hurricane season runs from June 1 through November 30. NOAA will issue a mid-season update in early August just prior to the normal August through October peak in activity.
The National Hurricane Center forecasts that the upcoming north Atlantic hurricane season would be more active than usual. An average season has 11 named storms, including 6 hurricanes, of which 2 are major hurricanes. The forecast for 2006 is for 13–16 named storms, including 8–10 hurricanes, of which 4–6 may be major hurricanes.
They do not expect a repeat of last year's record-breaking 28 named storms, however, which included 15 hurricanes, 7 of them major. Hurricane Season 2005 was the worst in 154 years.
The 2006 Atlantic hurricane season outlook indicates an 80% chance of an above-normal hurricane season, a 15% chance of a near-normal season, and only a 5% chance of a below-normal season. This outlook, produced by scientists at NOAA's Climate Prediction Center, National Hurricane Center, and Hurricane Research Division calls for a very active 2006 season, with 13-16 named storms, 8-10 hurricanes, and 4-6 major hurricanes.
Warmer ocean water combined with lower wind shear, weaker easterly trade winds, and a more favorable wind pattern in the mid-levels of the atmosphere are the factors that collectively will favor the development of storms in greater numbers and to greater intensity. Warm water is the energy source for storms while favorable wind patterns limit the wind shear that can tear apart a storm's building cloud structure.
This confluence of conditions in the ocean and atmosphere is strongly related to a climate pattern known as the multi-decadal signal, which has been in place since 1995. Since then, nine of the last 11 hurricane seasons have been above normal, with only two below-normal seasons during the El Niño years of 1997 and 2002.
With neutral El Niño/Southern Oscillation (ENSO) conditions expected across the equatorial Pacific during the next three to six months, the NOAA Climate Prediction Center scientists say that neither El Niño nor La Niña likely will be a factor in this year's hurricane season. (Click NOAA image for larger view of conditions that will make 2006 an above-normal hurricane season. Please credit “NOAA.”)
"Whether we face an active hurricane season, like this year, or a below-normal season, the crucial message for every person is the same: prepare, prepare, prepare," said Max Mayfield, director of the NOAA National Hurricane Center. "One hurricane hitting where you live is enough to make it a bad season."
The north Atlantic hurricane seasonal outlook is a product of NOAA's Climate Prediction Center, National Hurricane Center and Hurricane Research Division. The NOAA National Hurricane Center has hurricane forecasting responsibilities for the north Atlantic as well as the east Pacific regions.
NOAA, an agency of the U.S. Department of Commerce, is dedicated to enhancing economic security and national safety through the prediction and research of weather and climate-related events and providing environmental stewardship of the nation's coastal and marine resources.
Through the emerging Global Earth Observation System of Systems (GEOSS), NOAA is working with its federal partners, 61 countries and the European Commission to develop a global network that is as integrated as the planet it observes, predicts and protects.
See http://www.cpc.noaa.gov/products/outlooks/hurricane.shtml