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

Climate Diagnostics Bulletin
Climate Diagnostics Bulletin - Home Climate Diagnostics Bulletin - Forecast Climate Diagnostics Bulletin - Extratropics


  Tropical Highlights

  Table of Atmospheric Indices  (Table 1)

  Table of Oceanic Indices  (Table 2)

  Time Series

  Time-Longitude Sections

  Mean & Anomaly Fields

  Appendix 1: Outside Contributions

Tropical Highlights


The pattern of tropical sea surface temperature (SST) anomalies

Tropical Highlights - February 2019



Sea surface temperatures (SSTs) remained above-average across the equatorial Pacific during February 2019 (Fig. T18, Table T2). The latest monthly Niņo indices were +0.3°C for the Niņo 1+2 region, +0.7°C for the Niņo 3.4 region and +1.0°C for the Niņo 4 region (Table T2, Fig. T5). The depth of the oceanic thermocline (measured by the depth of the 20°C isotherm) was above-average across much of the central and eastern equatorial Pacific (Figs. T15, T16), and the corresponding sub-surface temperatures were 1-4°C above average (Fig. T17).


Also during February, the lower-level easterly winds were weaker-than-average (indicated by westerly anomalies) across the equatorial Pacific (Table T1, Fig. T20), while the upper-level westerly winds anomalies were above-average over the eastern equatorial Pacific (Fig. T21). Meanwhile, tropical convection was suppressed over Indonesia and enhanced near the Date Line (Figs. T25, E3). Collectively, these oceanic and atmospheric anomalies reflect weak El Niņo conditions.


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: March 2019
Information Quality
Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities