 National Oceanic and Atmospheric Administration, NOAA, Coral Reef Watch, CRW, program has developed a daily global 5 km product suite based on satellite observations to monitor thermal stress on coral reefs. The new products increase near shore coverage and now allow direct monitoring of 95% of coral reefs and significantly reduce data gaps caused by cloud cover. This article was authored by Gang Liu, Scott F. Herron, C. Mark Eakin, and others.