In addition , the Philippine Atmospheric , Geophysical and Astronomical Services Administration ( PAGASA ) assigns names to tropical cyclones ( including tropical depressions ) that enter or form in the Philippine area of responsibility .
The season ran throughout the year during 2009 , with most tropical cyclones forming between May and November.The Philippine Atmospheric , Geophysical and Astronomical Services Administration ( PAGASA ) assigns names to tropical cyclones ( including tropical depressions ) that enter or form in the Philippine area of responsibility .