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Near-normal or above-normal Eastern Pacific hurricane season predicted

Date:
May 22, 2014
Source:
National Oceanic and Atmospheric Administration
Summary:
NOAA's Climate Prediction Center has announced that a near-normal or above-normal hurricane season is likely for the Eastern Pacific this year. The outlook calls for a 50 percent chance of an above-normal season, a 40 percent chance of a near-normal season, and a 10 percent chance of a below normal season.

Suomi NPP satellite image shows Hurricane Manuel near peak intensity on Sept. 19, 2013, before its second landfall on western Mexico.
Credit: NOAA/NASA

NOAA's Climate Prediction Center announced today that a near-normal or above-normal hurricane season is likely for the Eastern Pacific this year. The outlook calls for a 50 percent chance of an above-normal season, a 40 percent chance of a near-normal season, and a 10 percent chance of a below normal season.

Seasonal hurricane forecasters are calling for a 70 percent chance of 14 to 20 named storms, which includes 7 to 11 hurricanes, of which 3 to 6 are expected to become major hurricanes (Category 3, 4 or 5 on the Saffir-Simpson Hurricane Wind Scale).

An average Eastern Pacific hurricane season produces 15 named storms, with eight becoming hurricanes and four becoming major hurricanes. The Eastern Pacific hurricane season runs from May 15 through Nov. 30, with peak activity from July through September.

"The key climate factor behind the outlook is the likely development of El Niño this summer. El Niño decreases the vertical wind shear over the eastern tropical Pacific, favoring more and stronger tropical storms and hurricanes," said Gerry Bell, Ph.D., lead seasonal hurricane forecaster with NOAA's Climate Prediction Center, part of the U.S. National Weather Service. "The eastern Pacific has been in an era of low activity for hurricanes since 1995, but this pattern will be offset in 2014 by the impacts of El Niño."

Climate signals point to a potentially active hurricane season for the Eastern Pacific this year, making preparedness more important than ever. The public is encouraged to take time now to learn their personal risk, build an emergency kit and develop a contingency plan in to ensure their resiliency in the face of wind, rain, flooding and storm surge that a hurricane may bring.

The outlook is a general guide to the overall seasonal hurricane activity. It does not predict whether, where, or when any of these storms may hit land. Eastern Pacific tropical storms and hurricanes most often track westward over open waters, sometimes reaching Hawaii. However, some occasionally head toward the northeast and may bring rainfall to the arid southwestern United States during the summer or fall. Also, on average, two to three storms per season affect western Mexico or Central America.

NOAA's hurricane outlook for the Central Pacific basin calls for a near-normal or above-normal season while the Atlantic basin is expected to be near-normal or below-normal.


Story Source:

The above story is based on materials provided by National Oceanic and Atmospheric Administration. Note: Materials may be edited for content and length.


Cite This Page:

National Oceanic and Atmospheric Administration. "Near-normal or above-normal Eastern Pacific hurricane season predicted." ScienceDaily. ScienceDaily, 22 May 2014. <www.sciencedaily.com/releases/2014/05/140522132505.htm>.
National Oceanic and Atmospheric Administration. (2014, May 22). Near-normal or above-normal Eastern Pacific hurricane season predicted. ScienceDaily. Retrieved July 25, 2014 from www.sciencedaily.com/releases/2014/05/140522132505.htm
National Oceanic and Atmospheric Administration. "Near-normal or above-normal Eastern Pacific hurricane season predicted." ScienceDaily. www.sciencedaily.com/releases/2014/05/140522132505.htm (accessed July 25, 2014).

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