be the "middle domain," is located between the PAR and the TCID. TCAD tropical cyclones are too far to have any direct effect to the country but are close enough for monitoring by the PAGASA and prompts the agency to issue a Tropical Cyclone Advisory (a less serious form of tropical cyclone bulletin than the Tropical Cyclone Bulletin). The TCAD includes the area bounded by the imaginary lines connecting the coordinates: , , , . Note that though the TCAD completely encloses the PAR, it does not include the area within the PAR. On the other hand, the TCID is the largest and the outermost domain of PAGASA. TCID tropical cyclones are of least concern for PAGASA but are still necessary enough for monitoring and public awareness. The TCID is the area enclosed by the imaginary lines connecting the coordinates: , , , . Similarly, the TCID excludes the area enclosed by the PAR and the TCAD. References Tropical cyclone meteorology