![map of forecast for marine heatwaves](/sites/default/files/2023-05/marine_heatwave_PSL_ENSO_Blog.png)
Image caption
Sample marine heatwave forecast for July 2023, made in early May 2023, from NOAA’s Physical Sciences Laboratory. Yellow indicates higher chances of marine heatwaves, while purple indicates lower probabilities. Image provided by the NOAA Physical Sciences Laboratory, Boulder, Colorado.