Category Archives: ENSO Update

Early December 2016 La Niña Update: Mixed Signals from NOAA and BOM

Posted on December 5, 2016 by Bob Tisdale

Note: See Update at the end of the post. # # # Last month on November 10, NOAA issued a La Niña Advisory, indicating weak La Niña conditions existed and that those conditions were “slightly favored to persist (~55% chance) … Continue reading →

Posted in ENSO Update, Uncategorized | 8 Comments

NOAA Has Resurrected the 2014/15 El Niño with Its Recent Changes to the Oceanic NINO Index

Posted on October 12, 2016 by Bob Tisdale

Just in case you missed the mention of this in the text of the most recent sea surface temperature update… In a June 2015 post, we discussed and illustrated how Weak El Niños and La Niñas Come and Go from … Continue reading →

Posted in 2014-15 El Nino Series, ENSO Update | 12 Comments

Quicky October 2016 ENSO Update

Posted on October 11, 2016 by Bob Tisdale

Weekly NINO3.4 Sea Surface Temperature Anomalies from NOAA Are Approaching the Threshold of a Moderate La Niña.  Australia’s Southern Oscillation Index from BOM is in La Niña values.  And NOAA’s Multivariate ENSO Index is Still in ENSO Neutral Territory.

Posted in ENSO Update | 7 Comments

Say Hello to La Niña Conditions

Posted on July 18, 2016 by Bob Tisdale

A quick ENSO update. Meteorological agencies like NOAA use the sea surface temperature anomalies of the NINO3.4 region (5S-5N, 170W-120W) of the equatorial Pacific to determine if the tropical Pacific is experiencing El Niño, La Niña or ENSO neutral (not … Continue reading →

Posted in 2015-16 El Nino Series, ENSO Update, Uncategorized | 10 Comments

Global Sea Surface Temperature Responses to the 1997/98 and 2015/16 El Niño Events – Update 1

Posted on June 23, 2016 by Bob Tisdale

Alternate Title:  Just in Case You Thought Sea Surface Temperatures around the Globe Responded Similarly to Strong El Niños This is an update of the post here published back in March.  It will illustrate quite clearly that the responses of … Continue reading →

Posted in 2015-16 El Nino Series, ENSO Update, Uncategorized | 7 Comments

May 2016 ENSO Update – The 2015/16 El Niño Has Reached Its End

Posted on May 30, 2016 by Bob Tisdale

This post provides an update of many of the ENSO-related variables we presented as part of the 2014-15 El Niño Series and for the 2015/16 El Niño series. INTRODUCTION In the recent post Say Good-Bye to the 2015/16 El Niño, … Continue reading →

Posted in 2015-16 El Nino Series, ENSO Update | 23 Comments

Say Goodbye to the 2015/16 El Niño

Posted on May 23, 2016 by Bob Tisdale

Plus a Few Freebees at the End of the Post The sea surface temperature anomalies of the NINO3.4 region of the equatorial Pacific are bordered by the coordinates of 5S-5N, 170W-120W.  They are used by NOAA and other meteorological agencies … Continue reading →

Posted in 2015-16 El Nino Series, ENSO Update | 4 Comments

April 2016 ENSO Update – La Niña Alerts Issued for Later This Year and NINO1+2 SSTa Are Near Zero Deg C

Posted on April 18, 2016 by Bob Tisdale

This post provides an update of many of the ENSO-related variables we presented as part of the 2014-15 El Niño Series.  For the posts about the 2015/16 El Niño, we’ve used the evolution years of different El Niños as references … Continue reading →

Posted in 2015-16 El Nino Series, ENSO Update | 11 Comments

Quicky Early April 2016 ENSO Update: NINO3.4 Sea Surface Temperature Anomalies Still at the Threshold of a Strong El Niño

Posted on April 4, 2016 by Bob Tisdale

NOAA’s weekly sea surface temperature anomalies for the NINO regions (based on the original Reynolds OI.v2 data) are furnished on Mondays. Today’s update for the week centered on March 30, 2016 shows the sea surface temperature anomalies of the NINO3.4 … Continue reading →

Posted in 2015-16 El Nino Series, ENSO Update, Uncategorized | 2 Comments

March 2016 ENSO Update – We’ll Have to Keep an Eye on the Pocket of Warm Water South of the Equator

Posted on March 10, 2016 by Bob Tisdale

This post provides an update of many of the ENSO-related variables we presented as part of the 2014-15 El Niño Series.  For the posts about the 2015/16 El Niño, we’ve used the evolution years of different El Niños as references … Continue reading →

Posted in 2015-16 El Nino Series, ENSO Update | 16 Comments