Sea surface temperatures (SSTs) are one of the factors that influence the development of hurricanes. The temperature of seas around North and Central America are primed to fuel storm development and intensification as we head towards hurricane season.
SSTs are measured by a combination of satellite and ocean instruments. When temperatures are above 27.8° C (82 °F) SSTs are considered warm enough to intensify and sustain hurricanes. The SSTs above that threshold for August 11, 2021, are shown in red on the map below. Note the Gulf Stream— the finger of warm water—running along the U.S. East Coast.