Sea surface temperatures (SST) in the Central Gulf of Alaska have remained in heatwave conditions (SST elevated above the 90th percentile for more than 5 consecutive days) since the 13th of September. Overall the SST has oscillated in and out of heatwave conditions throughout the late Spring and Summer, and now into Fall. For the past 90 days there have been three periods with heatwave conditions (SST elevated above the 90th percentile for more than 5 consecutive days), July 14th through August 3rd and August 14th through August 30th, and September 13 through the present. In the short cooler periods between heatwave conditions in this time period the mean daily sea surface temperatures in the Central Gulf of Alaska continued to remain above the 1982-2012 mean.
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