conditions continued during October 2008, as sea surface temperatures (SSTs)
remained near-average over much of the equatorial
. However, SSTs remained below
average in the east-central Pacific and off the west coast of
latest monthly SST index was -0.3°C in the Niņo-3.4 region, and -0.1°C in the
Niņo-4 region (Table T2).
thermocline along the equator, measured by the depth of the 20°C
isotherm, featured shallower-than-average depths in the east-central Pacific
during October (Figs. T15, T16).
Consistent with this pattern, subsurface temperatures in the region were 1-3oC
below average at thermocline depth (Fig. T17).
low-level easterly winds and upper-level westerly winds were again present
across the western equatorial Pacific (Figs.
These conditions continued to be associated with suppressed convection over the
central equatorial Pacific (Fig.
the latest status of the ENSO cycle see the ENSO Diagnostic Discussion at: