Parma added to the damage brought about by the earlier Typhoon Ketsana, affecting thousands of families on the north, especially in the province of Pangasinan where the San Roque Dam inadvertently released water to prevent its breach.

Days later, the greatly weakened Parma retreated back to Luzon, making further landfalls on Ilocos Norte and Cagayan.

Due to the high death toll and damages, both the JMA and PAGASA retired Parma and Pepeng from their respective naming lists.

During September 26, the Joint Typhoon Warning Center (JTWC) started to monitor an area of convection that was located about 445 km (275 mi), to the southeast of Guam.

On October 8 it made a third landfall the eastern coast of Cagayan, then moved slowly across Luzon, eventually emerging in the South China Sea.

[5] Early on September 28, the National Weather Service Weather Forecast Office in Guam using data from the Joint Typhoon Warning Center placed Ulithi, Faraulep and Fais under tropical storm warnings and declared Tropical storm watches for Yap and Ngulu whilst the depression was moving towards the state of Yap.

[8][9][10] NWS Guam then placed Koror and Kayangel under a tropical storm watch later that day before cancelling all warnings early on September 30.

[11][12] The National Disaster Coordinating Council (NDCC) advised all local government officials across Luzon to evacuate people if needed to ensure their safety.

President Gloria Macapagal Arroyo also requested PAGASA to monitor the super typhoon every two hours and update its website.

All ferry stations with routes from Luzon to Visayas and vice versa suspended operations, and fishermen were advised not to go to sea to avoid turbulent waves.

[28] The following day, the Central Weather Bureau issued a land warning for the Hengchun Peninsula as Parma moved over the northern Philippines.

[29] At least 55 international flights from Taiwanese airports were cancelled or delayed due to Typhoon Parma as it stalled in the Bashih Channel.

[30] On October 5, mandatory evacuations were put in place for portions of southern Taiwan, leading to roughly 6,000 residents leaving the area for shelter.

[31] While it was a Tropical Storm, Parma passed to the south of the westernmost state of Yap, battering the east coast of the main island with torrential rain and winds of up to 95 km/h (60 mph).

[45] 39 provinces including Metro Manila were put to signal warnings, with each place experienced massive rainfall with strong winds.

The Maharlika Highway in Ilagan, Isabela to Cagayan became hardly passable due to the trees and electric posts that fell when Pepeng battered the area.

After 200 mm (7.9 in) of rain fell in Yilan County, emergency officials enacted the first mandatory evacuation in northern Taiwan, relocating hundreds of residents.

[49] Off the coast of Taiwan, a ship carrying 14 people sank after being battered by rough seas produced by Typhoon Parma.

[51] Typhoon Parma made its final landfall near Hai Phong on October 15 after causing damage to Bach Long Vi island where 62 fishing boats were sunk.