Research notes and updates from the team.
The SST anomaly in the NINO3.4 region was at a weak El Niño level from late February through mid-May 2015, when it increased to moderate strength. For May the average NINO3.4 SST anomaly was 1.03 C, indicative of minimally moderate Niño conditions, and for Mar-May it was 0.80 C.
Read more →The SST anomaly in the NINO3.4 region has been at a weak El Niño level from late February through mid-May 2015. For April the average NINO3.4 SST anomaly was 0.78 C, indicative of weak Niño conditions, and for Feb-Apr it was 0.64 C. The IRI’s definition of El Niño, like NOAA/Climate Prediction Center’s, requires that the SST anomaly in the Nino3.4 region (5S-5N; 170W-120W) exceed 0.5 C.
Read more →The SST anomaly in the NINO3.4 region has been mostly at a weak El Niño level from mid-October through mid-April 2015. For March the average NINO3.4 SST anomaly was 0.58 C, indicative of weak Niño conditions, and for Jan-Mar it was 0.56 C. The IRI’s definition of El Niño, like NOAA/Climate Prediction Center’s, requires that the SST anomaly in the Nino3.4 region (5S-5N; 170W-120W) exceed 0.5 C.
Read more →The SST anomaly in the NINO3.4 region has been mostly at the weak El Niño level from mid-October through mid-March. For February the average NINO3.4 SST anomaly was 0.56 C, indicative of weak Niño conditions, and for Nov-Jan it was 0.62 C. The IRI’s definition of El Niño, like NOAA/Climate Prediction Center’s, requires that the SST anomaly in the Nino3.4 region (5S-5N; 170W-120W) exceed 0.5 C.
Read more →The SST anomaly in the NINO3.4 region has been at the weak El Niño level from mid-October through mid-February. For January the average NINO3.4 SST anomaly was 0.53 C, indicative of weak Niño conditions, and for Nov-Jan it was 0.72 C. The IRI’s definition of El Niño, like NOAA/Climate Prediction Center’s, requires that the SST anomaly in the Nino3.4 region (5S-5N; 170W-120W) exceed 0.5 C.
Read more →The SST anomaly in the NINO3.4 region has been at the weak El Niño level from mid-October to the end of December, and even reached the borderline of moderate El Niño for a single week at the end of November. For December the average NINO3.4 SST anomaly was 0.78 C, indicative of weak Niño conditions, and for Oct-Dec it was 0.71 C.
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