Sea surface temperature anomaly maps show temperatures above normal in orange and red. The warming could lead to dire conditions for sea life. NOAA hide caption toggle caption NOAA Environment Is 'The Blob' Back? Latest Marine Heat Wave Could Pose New Risks To Sea Life September 6, 2019 Water temperatures between Alaska and California have risen by 5 degrees Fahrenheit. Researchers say the warming could trigger a series of problems in the marine food chain.