Tropical Highlights - June 2021

 

 

During June 2021, sea surface temperatures (SSTs) were near-average across much of the equatorial Pacific (Fig. T18). The latest monthly Ni�o indices were +0.1�C for the Ni�o 1+2 region, -0.2�C for the Ni�o 3.4 region and -0.1�C for the Ni�o 4 region (Fig. T5, Table T2). The depth of the oceanic thermocline (measured by the depth of the 20�C isotherm) was slightly above-average across much of the equatorial Pacific (Figs. T15, T16). The corresponding sub-surface temperatures were 1-2�C above-average (Fig. T17).

 

Also during June, the lower-level easterly winds and the upper-level westerly winds were near-average across most of the equatorial Pacific (Fig. T20, Fig. T21). Meanwhile, tropical convection was suppressed over the central equatorial Pacific (Figs. T25, E3). Collectively, these oceanic and atmospheric anomalies reflected ENSO-neutral conditions.

 

For the latest status of the ENSO cycle see the ENSO Diagnostic Discussion at: http://www.cpc.ncep.noaa.gov/products/analysis_monitoring/enso_advisory/index.html