A 'blob' of warm water 2,000 miles across is sitting in the Pacific Ocean (shown in image). It has been present since 2013. Since June 2015 it has extended from Alaska to Mexico. See The Blob for more details. Daily Sea Surface Temperature Anomalies (Degree Centigrade). SST Daily Optimum Interpolation (OI), AVHRR Only, Version 2, Final + Preliminary, (2014-09-01, T00:00:00Z, Alitutude = 0.0 m.) Data courtesy of NOAA, NCDC.