Tropical
Highlights - June 2018
Sea surface
temperatures (SSTs) during June 2018 were slightly above-average across the central and eastern equatorial
Pacific (Fig. T18,
Table T2). The latest monthly
Niņo indices were +0.3°C for the Niņo 4
region, +0.2°C
for the Niņo 3.4 region, and -0.6°C for the Niņo 1+2 region (Table
T2, Fig. T5). The depth of the oceanic thermocline
(measured by the depth of the 20°C isotherm) was above-average across the central
and eastern equatorial Pacific (Figs. T15, T16), and the
corresponding sub-surface temperatures were 1-3°C above average (Fig. T17).
Also during June, the lower-level
wind anomalies were westerly across the central and eastern equatorial Pacific,
while the upper-level westerly winds were below-average over the central
equatorial Pacific (Table T1, Figs. T20, T21). Meanwhile, convection was suppressed across Indonesia
and the central equatorial Pacific (Figs.
T25, E3).
Collectively, these oceanic and atmospheric anomalies reflect 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
www.nws.noaa.gov
