SEA SURFACE TEMPERATURE (SST)
During June 2011, ENSO-neutral conditions continued as reflected by the overall pattern of small sea surface temperature (SST) anomalies across the equatorial Pacific Ocean. All of the latest weekly Niño index values were near average, ranging between 0.0°C and 0.4°C. The subsurface oceanic heat content anomaly (average temperature anomalies in the upper 300m of the ocean), remained elevated, but weakened throughout the month, in accordance with the declining strength of above-average temperatures at depth. While weak, the atmospheric circulation anomalies remained consistent with certain aspects of La Niña. Collectively, these tropical Pacific anomalies indicate ENSO-neutral conditions, but the atmospheric circulation continues to be characteristic of La Niña.