::CRC-SAS - Regional Climate Center Network for Southern South America::
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Regional Climate Center Network for Southern South America
RCC - Network - SSA
::CRC-SAS - Centro Regional del Clima para el Sur de América del Sur::

 

EL NIÑO SOUTHERN OSCILLATION – ENSO
September 20th, 2021
Current State: NEUTRAL


  • During the last 30 days, sea surface temperatures (SST) at equatorial Pacific Ocean were colder than normal between 120°W and 140°W, and were warmer than normal at west of 140°E.

  • Since mid-August to mid-September trade winds were stronger than normal between 110°W and 120°E.

  • Sub-surface ocean water temperatures at equatorial Pacific Ocean were colder than normal between 90°W and 170°W, between surface and 200 m depth. Warmer than normal temperatures were observed at west of the dateline, between surface and 200 m depth.

  • 30-day moving SOI (Southern Oscillation Index) has positive values and according to neutral conditions. Its latest value is +10.6 (ending on September 18).

  • During the last 30 days convection at equatorial Pacific Ocean was below normal between around the dateline, and was above normal over Indonesia.

  • Dynamic and statistical models predict, for El Niño 3.4 region, 73 % chances of La Niña conditions during the season September-October-November 2021.


Link to Latest WMO bulletin on El Niño / La Niña status

  • Sea Surface Temp.
     
  • Sub-Surface Sea Temp.
     
  • Southern Oscillation Index
     
  • Trade winds
     
  • Cloudiness
     
  • Forecasts
     
  • Links
    of interest
 
 
::CRC-SAS - Centro Regional del Clima para el Sur de América del Sur::