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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

FEBRUARY 2024

The pattern of tropical sea surface temperature (SST) anomalies

Tropical Highlights - February 2024

 

During February 2024, sea surface temperatures (SSTs) continued to decrease but remained well above-average across the equatorial Pacific (Fig. T18). The latest monthly Niņo indices were +0.9C for the Nino 1+2 region, +1.5C for the Nino 3.4 region and +1.5C for the Nino 3 region (Table T2). The depth of the oceanic thermocline (measured by the depth of the 20C isotherm) was below-average across most of the equatorial Pacific (Figs. T15, T16). The corresponding sub-surface temperatures were 1-5C below-average in the eastern equatorial Pacific (Fig. T17).

 

Also during February, lower-level wind were near average over most of the equatorial Pacific, while upper-level wind anomalies were easterly over the eastern equatorial Pacific (Table T1, Figs. T20, T21). Meanwhile, tropical convection was enhanced around the Date Line and was suppressed over Indonesia (Fig. T25). Collectively, these oceanic and atmospheric anomalies were consistent with weakening El Niņo 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


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