A breakpoint is a location referred to by meteorologists when issuing watches, warnings, or advisories, for specific areas. Breakpoints are used when coastal and offshore areas need to be warned of an impending weather event, usually pertaining to a hazard faced because of the water.
Breakpoints are typically defined by the name of a place or town on the coast, by a geographic feature, or by some combination of latitude and longitude. Breakpoints are used by various meteorological organizations worldwide, including the National Hurricane Center (NHC), the Japan Meteorological Agency (JMA), and the National Weather Service (NWS).