The 1988 Pacific typhoon season has no official bounds; it ran year-round in 1988, but most tropical cyclones tend to form in the northwestern Pacific Ocean between May and November.<ref>Gary Padgett. May 2003 Tropical Cyclone Summary. Retrieved 2006-08-26.</ref> These dates conventionally delimit the period of each year when most tropical cyclones form in the northwestern Pacific Ocean.
The scope of this article is limited to the Pacific Ocean, north of the equator and west of the international date line. Storms that form east of the date line and north of the equator are called hurricanes; see 1988 Pacific hurricane season. Tropical Storms formed in the entire west pacific basin were assigned a name by the Joint Typhoon Warning Center. Tropical depressions in this basin have the "W" suffix added to their number. Tropical depressions that enter or form in the Philippine area of responsibility are assigned a name by the Philippine Atmospheric, Geophysical and Astronomical Services Administration or PAGASA. This can often result in the same storm having two names.
26 tropical cyclones formed this year in the Western Pacific, of which 25 became tropical storms. 13 storms reached typhoon intensity, of which 1 reached supertyphoon strength.
Typhoon Roy, which crossed the open Western Pacific as a Category 4 hurricane in January, caused moderate to extensive damage across the Federated States of Micronesia and the Philippines, causing $23.5 million (1988 USD) but only one death.<ref>Joint Typhoon Warning Center. Typhoon Roy. Retrieved on 2007-01-19.</ref>
Tropical Storm Bill
Tropical Storm Bill, which formed on August 5 east of Taiwan, moved northwest to hit eastern China as a 45 mph tropical storm. Torrential rains and heavy flooding resulted in 110 casualties and widespread damage to roads and dams.<ref>Joint Typhoon Warning Center. Tropical Storm Bill. Retrieved on 2007-01-19.</ref>
Typhoon Ruby (Unsang)
Typhoon Ruby, which developed east of the Philippines on October 20, rapidly intensified to a 145 mph typhoon while approaching central Luzon. It hit on the 24th, and rapidly weakened to a minimal typhoon over the island. Ruby, with its disrupted circulation, remained weak over the South China Sea, and land interaction with Vietnam caused it to dissipate on the 28th. Ruby caused over 300 fatalities, with widespread flooding and damage over its track.<ref>Joint Typhoon Warning Center. Typhoon Ruby. Retrieved on 2007-01-19.</ref> Damage in the Philippines totaled 5.64 billion Philippine Pesos (1989 pesos).<ref>Philippine Atmospheric Geophysical and Astronomical Services Administration. Most Destructive Tropical Cyclones for Month of October (1948-2000). Retrieved on 2007-02-04.</ref>
The passenger ferry the Dona Marilyn was in the Visayan Sea when the storm struck the vessel. The ferry was not designed for deep water, and the open decks let water into the interior of the ship. The storm caused the ferry to pitch to the starboard until one of the decks was below the water, causing the ship to fill up rapidly. The passengers and crew tried to save the ship, but to no avail. The Dona Marilyn sank stern first taking 389 people with it. Only 147 people survived by clinging to life rafts.
Just 2 weeks after Ruby hit Luzon, Skip, which formed on November 3, hit the central Philippines as a 145 mph typhoon. Ruby reached the South China Sea on the 7th, and steadily weakened until dissipation on the 12th. Skip was responsible for killing 104 people (with 95 missing) and extensive damage to the coconut, rice, and sugar crops.<ref>Joint Typhoon Warning Center. Typhoon Skip. Retrieved on 2007-01-19.</ref>
After passing through the Philippines, a tropical disturbance organized in the South China Sea into a tropical depression late on the morning of November 4. Turning westward and strengthening, the cyclone became a tropical storm later that day, and then a typhoon by late November 5. It moved into Vietnam on November 6 and quickly weakened, becoming the first and only tropical cyclone that season to make landfall in the country. Its remains later moved across the Mekong River delta.<ref>Joint Typhoon Warning Center. Typhoon Tess. Retrieved on 2007-01-19.</ref>
1988 storm names
Western North Pacific tropical cyclones were named by the Joint Typhoon Warning Center. The first storm of 1988 was named Roy and the final one was named Val.