A mild winter followed by an abnormally calm and sunny summer this year led to marine water temperatures that doubled the previous marine heatwave record in Prince William Sound. Science Center oceanographer Dr. Rob Campbell observed that monthly average temperatures at the surface during the months of July and August were seven degrees Fahrenheit above the seasonal average with one observation of nine degrees above average. Temperatures are recorded by Rob for his work with the Gulf Watch Alaska program. 

Read the entire article published by the Prince William Sound Science center: https://pwssc.org/marine-heat-wave-update/