West Coast sees new ocean heat and tide records

NOAA reported record high tides at 31 Pacific Coast gauges in early January 2026, and researchers reported record global ocean heat content for 2025.

January 2026 began with unusually high tides and warm temperatures along the U.S. West Coast. NOAA reported record-breaking water levels at 31 tidal gauges during the first weekend of the year. Researchers also reported that global ocean heat content set a record for 2025. Scientists linked warmer oceans to increased moisture in the atmosphere and to some extreme weather patterns. Key facts: - NOAA recorded record water levels at 31 tidal gauges, with notable high tides occurring around the Jan. 4 full moon. - A study co-authored by Michael Mann and other scientists reported record ocean heat content in 2025 and widespread warming across ocean basins. - NOAA and other agencies reported 2025 among the warmest years on record and highlighted increasing risk of high-tide flooding for locations such as Humboldt County and San Diego. Summary: Reports together indicate sustained ocean warming alongside a series of unusually high tides and warm temperature records in early 2026. Scientists and federal agencies say these observations are linked and that some coastal locations face more frequent high-tide flooding over time. Undetermined at this time.