Coastal and Marine Alerts Today
Browse active NOAA marine alerts across U.S. coastal and offshore waters, ordered by severity with affected areas and expiration times.
Oceans
RSS FeedOcean science news, explainers, and statistics covering marine environments, currents, climate, coasts, seafloor research, and the changing global ocean.
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Tides and Coastal Water Levels Today
Current NOAA coastal water-level observations and the next predicted high and low tides at eight U.S. stations, with datum and safety context.
Ocean Conditions Today
Frequently refreshed NOAA buoy observations for offshore water temperature, significant wave height, wave period, and wind across seven representative stations.
Global Sea Surface Temperature Today
Daily NOAA global sea surface temperature and anomaly maps, with visible source timestamps and a clear guide to reading satellite ocean data.