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 - February 2007


The pattern of tropical sea surface temperature (SST) anomalies during February 2007 featured near-average temperatures across the equatorial Pacific, except slightly cooler-than-average temperatures over part of the eastern tropical Pacific (Fig. T18). Accordingly, the SST anomalies in the Niņo 1+2 and Niņo 3.4 regions were near zero during the month (latest values of 0.2 and 0.1, respectively) (Table T2). Meanwhile, the Tahiti – Darwin SOI is negative (latest value: -0.5), primarily in response to higher-than-average pressure over Darwin (Table T1, Figs. T1 and T19).

The oceanic thermocline, measured by the depth of the 20ēC isotherm along the equator, featured below average depth across the eastern equatorial Pacific during February (Figs. T15, T16).  Consistent with these conditions, oceanic temperatures at thermocline depth were 2-6ēC below average over the eastern equatorial Pacific (Fig. T17).

During February 2007, low-level easterly anomalies (more than 3.0 m s-1) were observed over the central equatorial Pacific (Fig. T20). Enhanced convection (above-average rainfall amounts) was observed over the western equatorial Pacific and across central Africa and the tropical Atlantic , while suppressed convection (below-average rainfall amounts) was seen across the tropical Indian Ocean and northwestern South America (Figs. T25 and E3).

For the latest status of the ENSO cycle see the ENSO Diagnostic Discussion at:


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