Nature2013-2016North Pacific Oceanhigh confidence

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. [tier=gold indep_score=0.867 clusters=3 claim_tier=notable]

Sources