NOAA/National Centers for Environmental Prediction

Marine Heatwave Monitoring and Forecast

(This is an experimental webpage for NOAA/NWS/NCEP Marine Heatwave Monitoring and Forecast with Foucus on the North Pacific and North Atlantic Oceans which directly Affect U.S.A.)



• Spatial Distribution: Global, N. Pacific & N. Atlantic
• Global Monthly Anomaly
• SST     Ocean Temperature at 105m    



N. Pacific Anomaly Pentad Subsurface Ocean Temperature: 5m     55m     105m     155m     Weekly SST     Weekly SST2     Pentad 300m Ocean Heat Content     Pentad Ocean Surface Height     Pentad Surface Heat Flux     3-month SST, SLP, & UV925     SST Tendency & 3-Month Heat Flux     Ocean Temperature Profile     GODAS Ocean Temperature Profile




N. Atlantic Anomaly Weekly SSTA     Monthly MDR SSTA     3-month SST, SLP, & UV925     SST Tendency & 3-Month Heat Flux




Indices & Time Series N. Pacific MHW Intensity & Area Indices: Weekly     Monthly




Regional Mean SST: Global Monthly & Nino3.4 Since 1854     N. Pacific Weekly     Gulf of Alaska & Subtropical Coast Weekly




NMME & CFSv2 Forecasts Tropical N. Atlantic SSTA: NMME     CFSv2     N. Pacific SSTA: NMME     CFSv2     CFSv2: N. Pacific Sea Surface Height Anomaly   CFSv2 SSTA Index: Last month   Last 9 months




Links NOAA PSL   NOAA Fisheries   International Working Group

(Maintained By: Zeng-Zhen.Hu@noaa.gov; Wanqiu.Wang@noaa.gov)

(Last modified: May 26, 2026)