El Nino Update

This El Nino update from the Climate Prediction Center at the National Centers for Environmental Prediction:

SST anomalies have decreased across the equatorial Pacific during the last 30 days, with the most recent pattern indicating weak warm-episode (El Niño) conditions.

The typical atmospheric circulation features, related to warm (El Niño) episodes, have not developed over the tropical Pacific due to a lack of persistent clouds and precipitation over the anomalously warm waters of the central equatorial Pacific. As a result, the effects of this event on circulation patterns at higher latitudes, e.g., over North America, have been minimal.

A majority of the statistical and coupled model forecasts indicate SST anomalies will weaken during the next 3 months, with a return to ENSO-neutral conditions during the northern Spring (March-May 2007).

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