Skip Navigation Links 
NOAA logo - Click to go to the NOAA home page National Weather Service   NWS logo - Click to go to the NWS home page
Climate Prediction Center

HOME > Expert Assessments > Climate Diagnostics Bulletin > Tropical Highlights

Tropical Highlights - October 2005



The pattern of global tropical sea surface temperature (SST) during October featured near-average SSTs everywhere, except negative anomalies in the eastern tropical Pacific (Fig. T18, Table T2). The overall patterns of convection, SSTs, low-level winds and upper-level winds remained near average over the central and eastern tropical Pacific during October 2005 (Figs. T18, T20, T21 and T25), which is consistent with ENSO-neutral conditions. 

The oceanic thermocline, measured by the depth of the 20C isotherm along the equator, featured near-average depth in the central Pacific and slightly shallower-than-average depth in the eastern Pacific during October (Figs. T15, T16). Consistent with these conditions, equatorial oceanic temperatures at thermocline depth were near average throughout most of the Pacific and 1-2 oC below average in the eastern Pacific (Fig. T17). The Tahiti - Darwin SOI (Table T1, Fig. T1) was 1.1 during October, due to lower-than-average pressure over Darwin and higher-than-average pressure over Tahiti .

During October, negative OLR anomalies (above-average rainfall amounts) were observed over India , the eastern equatorial Indian Ocean and the North Atlantic/Caribbean Sea (Figs. T25, T26 and E3), the latter was consistent with the very active Atlantic hurricane season.


NOAA/ National Weather Service
NOAA Center for Weather and Climate Prediction
Climate Prediction Center
5830 University Research Court
College Park, Maryland 20740
Page Author: Climate Prediction Center Internet Team
Page last modified: November 17, 2005
Information Quality
Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities