641222-the blob.jpg
![](https://utw10498.utweb.utexas.edu/sites/default/files/images/stories/641222-the%20blob.jpg)
This image shows the monthly average sea surface temperature for May 2015. Between 2013 and 2016, a marine heatwave known as the Blob dominated the North Pacific, indicated here by red, pink, and yellow colors signifying temperatures as much as five degrees Fahrenheit higher than average. Credit: NASA