Question: Typhoon Kalmaegi formed in what ocean in 2008?

Context paragraphs:
Typhoon Kinna (1991): Typhoon Kinna, known in the Philippines as Typhoon Neneng, was a mid-season typhoon that struck Japan during September 1991.  An area of disturbed weather formed in the Western Pacific monsoon trough during early September 1991.  The disturbance was upgraded into a tropical depression on September 10 after an increase in organization.  Tracking northwest due to a weak subtropical ridge to its north, Kinna strengthened into a tropical storm at 00:00 UTC on September 11.  Later that day, Kinna was upgraded into a severe tropical storm.  Following the development of a poorly defined eye, Kinna was upgraded into a typhoon on September 12.  The typhoon turned north in response to a trough and passed through Okinawa as a minimal typhoon.  Typhoon Kinna obtained peak intensity on September 13, but thereafter, Kinna accelerated north-northeastward toward Kyushu and maintained its intensity.  Later on September 13, the typhoon's eye moved over Kyushu at peak intensity.  Typhoon Kinna rapidly transitioned into an extratropical low as it tracked along the northern coast of Honshu.  Its extratropical remnants were last noted on the evening of September 16.  Even though most of the damage occurred on Kyushu and on western Honshu, the typhoon was the most destructive tropical cyclone to strike Okinawa since 1987, and was also the first of typhoon intensity to pass directly over the island since Typhoon Vera in 1986.  Nationwide, 11 people were killed and 94 others suffered injuries.  Nearly 50,000 customers lost power.  Close to 150 domestic flights were cancelled, which left 26,000 travelers stranded.  A total of 382 houses were destroyed while 2,586 others were flooded.  There were two hundred thirteen landslides and nine bridges were washed out while forty-seven roads were damaged.  Sixty-nine ships along with 875 ha (2,160 acres) of farmland were damaged.  In all, damage was estimated at 51.1 billion yen ($383 million 1991 USD).

Typhoon Omar: Typhoon Omar of 1992, known in the Philippines as Typhoon Lusing, was the strongest and costliest typhoon to strike Guam since Typhoon Pamela in 1976.  The cyclone formed on August 23 from the monsoon trough across the western Pacific Ocean.  Moving westward, Omar slowly intensified into a tropical storm, although another tropical cyclone nearby initially impeded further strengthening.  After the two storms became more distant, Omar quickly strengthened into a powerful typhoon.  On August 28, it made landfall on Guam with winds of 195 km/h (120 mph).  The typhoon reached its peak intensity the next day, with estimated 1‑minute winds of 240 km/h (150 mph), making it a "super typhoon" according to the Joint Typhoon Warning Center (JTWC).  Omar weakened significantly before striking eastern Taiwan on September 4, proceeding into eastern China the next day and dissipating on September 9.

Typhoon Sanba (2012): Typhoon Sanba, known in the Philippines as Typhoon Karen, was the strongest tropical cyclone worldwide in 2012.  The sixteenth named storm and tenth typhoon of the annual typhoon season, Sanba formed as a tropical depression east of The Philippines on September 10.  The storm gradually intensified as it moved generally northward in an area favorable for tropical development.  The system was soon upgraded to a tropical storm less than a day after formation and subsequently further to a typhoon on September 12.  Later that day, Sanba entered a phase of explosive intensification, quickly strengthening and gaining annular characteristics.  On September 13, the system attained its peak intensity with maximum sustained winds of 125 mph (205 km/h), and a barometric pressure of 900 mbar (hPa; 26.58 inHg), becoming the strongest typhoon in the Western Pacific Ocean since Megi in 2010.  Accelerating towards more northerly latitudes, a period of gradual weakening ensued afterwards as its eye expanded.  It made landfall on South Korea late on September 17 as a typhoon before transitioning into an extratropical cyclone the following day.  Sanba's remnants tracked into the Primorsky Krai region of eastern Russia before they were last noted on September 19.

Typhoon Haima: Typhoon Haima, known in the Philippines as Super Typhoon Lawin, was the third most intense tropical cyclone worldwide in 2016.  It was the twenty-second named storm and the eleventh typhoon of the annual typhoon season.  Impacting the Philippines less than a few days after Typhoon Sarika, Haima formed out of a tropical disturbance southwest of Chuuk on October 14, it developed into a tropical storm the next day.  Steady strengthening occurred over the next day or two as it tracked westward towards the Philippines.  After forming an eye shortly after it was upgraded to a typhoon, Haima began to rapidly strengthen and eventually became a super typhoon on October 18.  It later attained its peak intensity as a Category 5-equivalent tropical cyclone before weakening slightly.  Haima later made landfall late on October 19 as a Category 4-equivalent storm.  Rapid weakening occurred as it interacted with the landmasses until it entered the Southern China Sea as a weak typhoon.  It formed a large ragged eye once again and remained steady in intensity until making landfall in China on October 21.  It weakened below typhoon intensity and became extratropical on October 22.  The cyclone drifted northeastwards and later eastwards before emerging over water again, but eventually dissipated by October 26.

Typhoon Fung-wong (2008): Typhoon Fung-wong, known in the Philippines as Typhoon Igme, was a deadly typhoon in the 2008 Pacific typhoon season which made landfall on Taiwan and China.  Typhoon Fung-wong reached peak intensity of a Category 2 typhoon on the Saffir-Simpson Hurricane Scale by the Joint Typhoon Warning Center with peak winds of 95 kn .  Damage was extensive in Taiwan, hitting little more than a week later than Typhoon Kalmaegi, but a specific cost is unknown, though later estimated at 541 million (2008 USD).

2008 Pacific typhoon season: The 2008 Pacific typhoon season had no official bounds; it ran year-round in 2008, but most tropical cyclones tend to form in the northwestern Pacific Ocean between May and November.  These dates conventionally delimit the period of each year when most tropical cyclones form in the northwestern Pacific Ocean.

Typhoon Sarah (1959): Typhoon Sarah was among the deadliest typhoons on record in the western Pacific Ocean, killing around 2,000 people.  It formed during the peak of the busy 1959 Pacific typhoon season near Guam, and moved generally to the west-northwest.  Continued observations from the Hurricane Hunters allowed the Joint Typhoon Warning Center (JTWC) to track Sarah from its origins to its peak as a powerful typhoon, with maximum sustained winds estimated at 305 km/h (190 mph) on September 15.  Shortly thereafter, the typhoon struck the small Japanese island of Miyako-jima, where the barometric pressure fell to 908.1 mbar , the second-lowest on record for the country.  Sarah turned to the north and northeast, weakening from its peak intensity.  On September 17, the typhoon made landfall just west of Busan, South Korea with winds of 185 km/h (115 mph), the nation's strongest landfall at the time and only to be surpassed by Typhoon Maemi in 2003.  Sarah later became extratropical over the Japanese island of Hokkaido on September 18, although the remnants persisted for several days, crossing into the Russian Far East and later dissipating on September 23.

Typhoon Forrest (1983): Typhoon Forrest known in the Philippines as Typhoon Ising was a powerful typhoon that affected Japan in September 1983.  Typhoon Forrest formed from a tropical disturbance far from land in the western Pacific Ocean.  On September 20, the system was classified as a tropical storm, and thereafter began to intensify.  The next day, Forrest reached typhoon status, and the intensification process accelerated.  The storm prudently strengthened on September 22, and the following morning, attained peak intensity following a pressure drop of 100 mbar in slightly less than 24 hours.  Thereafter, Forrest began to weaken slowly as it moved northwest.  Approaching Japan, Super Typhoon Forrest first hit Okinawa on September 27.  Nearby, a tornado hit Inza Island, destroying 26 homes and injuring 26 people.  Forrest then moved north, impaling the Japanese archipelago before transitioning into an extratropical cyclone on September 28.  The torrential rainfall caused by the typhoon triggered deadly landslides and flooding across Japan.  In all, the cyclone killed at least 21 people, left 17 listed as missing, and injured 86.  Forrest flooded 46,000 homes in muddy water, over 100 dwellings were destroyed, and 2,560 people were rendered as homeless.  Seven flights were called off and 27,000 people were stranded.  In addition, 67 bridges and 818 roads were damaged.

Typhoon Kalmaegi (2008): Typhoon Kalmaegi (] ), known in the Philippines as Typhoon Helen, was the seventh named storm and the fifth typhoon that was recognised by the Japan Meteorological Agency.  The Joint Typhoon Warning Center also recognised it as the eighth tropical depression, the seventh tropical storm and the sixth typhoon of the 2008 Pacific typhoon season.

Typhoon Kalmaegi (2014): Typhoon Kalmaegi (] ), known in the Philippines as Typhoon Luis, was the 22nd depression and the 15th named storm of the 2014 typhoon season.  Kalmaegi was the first storm to make landfall over the Philippines since Typhoon Rammasun, two months prior.  The storm caused flooding in Southeast Asia during mid-September.

Supporting paragraphs: Typhoon Kalmaegi (2008) 2008 Pacific typhoon season
Answer: Pacific Ocean