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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

MARCH 2019

The pattern of tropical sea surface temperature (SST) anomalies

Tropical Highlights - March 2019

 

 

Sea surface temperatures (SSTs) remained above-average across the equatorial Pacific during March 2019 (Fig. T18, Table T2). The latest monthly Niņo indices were +0.3°C for the Niņo 1+2 region, +1.0°C for the Niņo 3.4 region and +0.9°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 eastern equatorial Pacific (Figs. T15, T16), and the corresponding sub-surface temperatures were 1-5°C above average (Fig. T17).

 

Also during March, both the lower-level easterly winds and upper-level westerly winds were near-average across the equatorial Pacific (Table T1, Fig. T20, Fig. T21). Meanwhile, tropical convection was enhanced across the central and east-central equatorial Pacific (Figs. T25, E3). Collectively, these oceanic and atmospheric anomalies reflect a weak El Niņo.

 

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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