Latest El Nino/Southern Oscillation discussion includes a La Nina Watch The NOAA Climate Prediction Center has issued its monthly El Nino/Southern Oscillation discussion, which also includes a La Nina Watch. This indicates that La Nina--a cooling of Equatorial Pacific Ocean waters--is expected during the next three months. This could enhance the strength of the Atlantic hurricane season.
Tue, 08 Jun 2010 06:05:24 EDT El Nino Arrives Expected to Persist through Winter 2009-10 NOAA scientists today announced the arrival of El Nino, a climate phenomenon with a significant influence on global weather, ocean conditions and marine fisheries. El Nino, the periodic warming of central and eastern tropical Pacific waters, occurs on average every two to five years and typically lasts about 12 months NOAA expects this El Nino to continue developing during the next several months, with further strengthening possible. The event is expected to last through winter 2009-10.
Thu, 09 Jul 2009 09:59:20 EDT Developing La Niña Conditions Expected to Continue During December 2008, negative equatorial sea surface temperature (SST) anomalies strengthened across the central and east-central Pacific Ocean. Convection remained suppressed near the International Date Line and became more persistent near Indonesia during December. Low-level easterly winds and upper-level westerly winds also strengthened across the equatorial Pacific Ocean. Collectively, these conditions reflect the development of La Niña. For the contiguous United States, potential impacts include above-average precipitation in the Ohio and Tennessee Valleys and below-average precipitation across the South, particularly in the southwestern and southeastern states. Other potential impacts include below-average temperatures in the Pacific Northwest and above-average temperatures across much of the southern United States.
Sat, 10 Jan 2009 08:29:40 EST Nina What is El Nino and La Nina La Niña is characterized by unusually cold ocean temperatures in the Equatorial Pacific, compared to El Niño, which is characterized by unusually warm ocean temperatures in the Equatorial Pacific.
Wed, 02 Jul 2008 09:32:37 EDT La Niña is expected to continue through the Northern Hemisphere Spring 2008 Atmospheric and oceanic conditions during February 2008 continued to reflect a strong La Niña. The most recent dynamical and statistical sea surface temperature (SST) forecasts for the Niño 3.4 region continue to indicate a moderate to strong La Niña through March 2008, and a weaker La Niña through April-May-June 2008. Current atmospheric and oceanic conditions and recent observed trends support the likely continuation of La Niña through the Northern Hemisphere spring 2008.