Three-year history of sea surface temperatures in the Niño-3.4 region of the tropical Pacific for the 8 existing double-dip La Niña events (gray lines) and the current event (purple line), which is the coldest of any of the previous events at this point in their development. Of all the previous 7 events, 2 went on to La Niña in their third year (below the blue dashed line), 2 went on to be at or near El Niño levels (above the red dashed line) and three were neutral. Graph is based on monthly Niño-3.4 index data from CPC using ERSSTv5. Created by Michelle L’Heureux.