Tropical
Highlights - July 2023
During July 2023, sea surface
temperatures (SSTs) remained above-average across the equatorial Pacific (Fig. T18).
The latest monthly Niņo indices were +3.2C for the Niņo 1+2 region, +1.1C for
the Niņo 3.4 region and +1.6C 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 eastern 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 July, the lower-level
and upper-level winds were near average over much of the western and central
equatorial Pacific (Table T1, Figs. T20, T21). Meanwhile,
tropical convection was enhanced near the International Date Line (Fig. T25).
Collectively, these oceanic and atmospheric anomalies were consistent with 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
