Tropical
Highlights - June 2023
During June
2023, sea surface
temperatures (SSTs) were above-average in much of
the equatorial Pacific (Fig. T18). The latest monthly Niņo indices were +2.6C for
the Niņo 1+2 region, +0.9C for the Niņo 3.4 region and +1.2C for the Niņo 3 region (Table T2). The depth of the oceanic thermocline
(measured by the depth of the 20C isotherm) was above-average across the
equatorial Pacific (Figs. T15, T16). The
corresponding sub-surface temperatures were 1-6C above-average in the far
eastern equatorial Pacific (Fig. T17).
Also during June, the lower-level and
upper-level winds were near average over much of the equatorial Pacific (Table T1; Figs. T20, T21). Meanwhile, tropical convection was enhanced near
the International Date Line and suppressed over far western equatorial Pacific
and eastern tropical Indian Ocean (Fig. T25). Collectively, these oceanic and atmospheric
anomalies were consistent with weak El Niņo 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
www.nws.noaa.gov
