During the Pacific 'Blob' event, sea-surface temperatures in some locations were more than 10°F above average.
Notes on verification
Multiple independent sources (NPS, IFLScience) confirm anomalies up to 10°F in some locations, though most retrospectives (NOAA, NASA) cite slightly lower typical peaks of 5-7°F, putting the 'more than 10°F' phrasing at the upper edge of documented figures.
Sources
- A Striking New View of the Pacific 'Blob' (nationalgeographic.com)
- https://www.nps.gov/articles/theblob.htm (nps.gov)
- https://www.sfgate.com/bayarea/article/blob-marine-heat-wave-us-21063998.php (sfgate.com)
- https://www.iflscience.com/return-of-the-blob-unusual-conditions-in-north-pacific-ocean-now-stretch-from-us-coast-to-japan-80896 (iflscience.com)