>Weekly NINO3.4 SST anomalies for the week centered on January 20, 2010 show a drop of 0.48 deg C over the past four weeks. Presently they’re at 1.45 deg C. It appears the 2009/10 El Nino has peaked. Assuming the 2009/10 El Nino won’t become a multiyear El Nino, the questions now: how quickly will NINO3.4 SST anomalies drop and how severe will the La Nina be?
NINO3.4 SST Anomalies
Refer also to Australia’s Bureau of Meteorology ENSO Wrap-Up webpage for other indicators:
Weekly Global SST anomalies are still elevated, but they are 0.07 deg C below the most recent peak that occurred four weeks ago. Will they continue to drop or will there be a lagged rise? Time will tell.
Global SST Anomalies
OI.v2 SST anomaly data is available through the NOAA NOMADS system: