Some discussion on if an El Nino is coming this winter and a nice video describing how the El Nino and La Nina work on the world especially the Pacific of course.

https://earthsky.org/earth/wmo-75-80-chance-el-nino-2019?utm_source=EarthSky+News&utm_campaign=235fd71119-EMAIL_CAMPAIGN_2018_02_02_COPY_01&utm_medium=email&utm_term=0_c643945d79-235fd71119-394005577

The European Space Agency (ESA) posted the video above on December 7, 2018, in response to an El Niño / La Niña update on November 27 from the World Meteorological Organization (WMO). The WMO said in late November there is a “75–80 percent chance” that a fully-fledged El Niño event will be with us by February 2019; however, it is not expected to be a strong event. WMO reported:

Sea surface temperatures are already at weak El Niño levels in part of the tropical Pacific, although the corresponding atmospheric patterns have not yet materialized.