Se acentúan las anomalías negativas y comienza a tener pinta de Niña. También se ve como se acentúa la fase negativa de PDO
Según el resumen de la NOAA
Niño 4..........0.0ºC
Niño 3.4.......-0.6ºC
Niño 3..........-0.7ºC
Niño 1+2......-0.4ºC
En verdad la naturaleza hizo de las sullas esta vez hace 3 meses los modelos pronosticaban Niño devil para estas fechas y ni eso jajaj.... de todas formas no creo que se matenga tres meses esa anomalia de -06 en 3.4 para que se concidere niña aunque me puedo equivocar es mas hace 3 meses la he hecho
a ver si ahora le aciertan........
http://iri.columbia.edu/climate/ENSO/currentinfo/technical.htmlTechnical ENSO Update17 January 2013
Recent and Current Conditions
After a brief period of borderline El Niño SST conditions between July and September 2012, the SST anomaly in the Nino3.4 region returned to neutral levels during October and has remained neutral through mid-January 2013. For December 2012 the Nino3.4 SST anomaly was -0.09 C, indicative of neutral ENSO conditions, and for October-December the anomaly was 0.19 C. Since late 2011, the IRI's definition of El Niño conditions has become the same as that of NOAA/Climate Prediction Center, in which the SST anomaly in the NINO3.4 region (5S-5N; 170W-120W) exceeds 0.5 C. Similarly, for La Niña, the anomaly must be -0.5 C or less. The climatological probabilities for La Niña, neutral, and El Niño conditions vary seasonally, and are shown in a table at the bottom of this page for each 3-month season.
The most recent weekly SST anomaly in the NINO3.4 region was -0.6 C, indicating a weak La Nina ENSO condition in the tropical Pacific
just for the week; this is cooler than the -0.09 C level observed in December.
A 1-week average SST anomaly may be indicative of a longer time-mean of which it is a small part,
but in the present case the -0.6 C anomaly is considered likely representative of a shorter-lived fluctuation that will likely not be sustained for more than another week or two, and may
not result in a mean anomaly of -0.5 C or cooler for the month of January.