It's as yet not here yet, but rather El Niño beyond any doubt resembles it's coming.
In its most recent conjecture, NOAA's Climate Prediction Center says there is a 70 to 75 percent chance that El Niño will frame "in the following couple of months and proceed through the Northern Hemisphere winter 2018-19." If the figure ends up being right, the El Niño could impact climate around the globe.
El Niño is commonly connected with a broadened Pacific fly stream and intensified tempest track, boosting the chances of wetter than normal conditions over the southern level of U.S. states. Should things play out along these lines (and they may not!), it could bring at any rate some alleviation for parts of the dry season stricken Southwest.
One of the components behind the Climate Prediction Center's expanding certainty that El Niño is coming can be found in the representation above. It indicates how ocean surface temperatures have developed every week from August through early October — particularly, how those temperatures have varied from the 1985-2012 normal.
Give careful consideration to the equator off the shore of South America and stretching out west to the center of the Pacific. See the blue tending to offer approach to red? This is characteristic of warming surface waters. As Emily Becker, a NOAA look into researcher, places it in a post at the ENSO Blog: