Since 1963 the Philippine Atmospheric, Geophysical and Astronomical Services Administration has assigned local names to a tropical cyclone should it move into or form as a tropical depression in their area of responsibility located between 135°E and 115°E and between 5°N-25°N even if the cyclone has had an international name assigned to it. All three agencies that have assigned names to tropical cyclones within the Western Pacific have retired the names of significant tropical cyclones, with PAGASA retiring names if a cyclone has caused at least in damage and or have caused at least 300 deaths within the Philippines. Since 1963 the naming lists have been revised in 1979, 1985, 2001 and 2005 for various reasons including to help minimize confusion in the historical records and to remove the names that might have negative associations with real persons. Within this list all information with regards to intensity is taken from while the system was in the Philippine area of responsibility and is thus taken from PAGASA's archives, rather than the JTWC or JMA's archives.
Background
The practice of using names to identify tropical cyclones goes back several centuries, with systems named after places, saints or things they hit before the formal start of naming in the Western Pacific. These included the Kamikaze, 1906 Hong Kong typhoon, 1922 Swatow typhoon and the 1934 Muroto typhoon. Since 1963 the Philippine Atmospheric, Geophysical and Astronomical Services Administration has assigned local names to a tropical cyclone should it move into or form as a tropical depression in their area of responsibility located between 135°E and 115°E and between 5°N-25°N even if the cyclone has had an international name assigned to it. All three agencies that have assigned names to tropical cyclones within the Western Pacific have retired the names of significant tropical cyclones, with PAGASA retiring names if a cyclone has caused at least in damage and or have caused at least 300 deaths within the Philippines. Since 1963 the naming lists have been revised in 1979, 1985, 2001 and 2005 for various reasons including to help minimize confusion in the historical records and to remove the names that might have negative associations with real persons. Within this list all information with regards to intensity is taken from while the system was in the Philippine area of responsibility and is thus taken from PAGASA's archives, rather than the JTWC or JMA's archives. The practice of retiring significant names was started during 1955 by the United States Weather Bureau in the Atlantic Ocean, after hurricanes Carol, Edna, and Hazel struck the Northeastern United States and caused a significant amount of damage in the previous year. Initially the names were only designed to be retired for ten years after which they might be reintroduced, however, it was decided at the 1969 Interdepartmental hurricane conference, that any significant hurricane in the future would have its name permanently retired. Several names have been removed from the naming lists by PAGASA for various other reasons, than causing a significant amount of death/destruction, which include being pronounced in a very similar way to other names and political reasons. PAGASA has removed names from the list for various other reasons, than causing a significant amount of death/destruction. These names include Nonoy in 2015 which sounded similar to Noynoy, which was President Benigno Aquino III's nickname. , 62 tropical cyclone names have been retired by PAGASA, with the most recent being Ambo of this year.
