The 2004 Pacific typhoon season was an extremely active season that featured the second-highest ACE ever recorded in a single season, second only to 1997, which featured 29 named storms, nineteen typhoons, and six super typhoons. It was an event in the annual cycle of tropical cyclone formation, in which tropical cyclones form in the western Pacific Ocean. The season ran throughout 2004, though most tropical cyclones typically develop between May and October. The season's first named storm and also the first typhoon, Sudal, developed on April 4, later was reached typhoon status two days later, and became the first super typhoon of the year three days later. The season's last named storm, Noru, dissipated on December 21.
The 2003 Pacific typhoon season was a slightly below average yearlong period of tropical cyclogenesis exhibiting the development of 45 tropical depressions, of which 21 became named storms; of those, 14 became typhoons. Though every month with the exception of February and March featured tropical activity, most storms developed from May through October. During the season, tropical cyclones affected the Philippines, Japan, China, the Korean Peninsula, Indochina, and various islands in the western Pacific.
The 2002 Pacific typhoon season was a slightly above average Pacific typhoon season, producing twenty-six named storms, fifteen becoming typhoons, and eight super typhoons. It had an ACE over 400 units, making it one of the most active seasons worldwide. It was an event in the annual cycle of tropical cyclone formation, in which tropical cyclones form in the western Pacific Ocean. The season ran throughout 2002, though most tropical cyclones typically develop between May and October. The season's first named storm, Tapah, developed on January 11, while the season's last named storm, Pongsona, dissipated on December 11. The season's first typhoon, Mitag, reached typhoon status on March 1, and became the first super typhoon of the year four days later.
The 1999 Pacific typhoon season was the last Pacific typhoon season to use English names as storm names. It also featured the lowest number of typhoons on record, with only five reaching this intensity. This was mainly due to a strong La Niña which persisted from last year. The season was also below-average in named storms, with only 20 of such spawning. It had no official bounds; it ran year-round in 1999, 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. The first named storm, Hilda, developed on January 6, while the last named storm, Gloria, dissipated on November 16.
Typhoon Imbudo, known in the Philippines as Super Typhoon Harurot, was a powerful typhoon that struck the Philippines and southern China in July 2003. The seventh named storm and fourth typhoon of the season, Imbudo formed on July 15 to the east of the Philippines. The storm moved generally west-northward for much of its duration due to a ridge to the north. Favorable conditions allowed Imbudo to intensify, gradually at first before undergoing rapid deepening on July 19. After reaching typhoon status, Imbudo strengthened further to peak 10–minute sustained winds of 165 km/h (103 mph) on July 20. The typhoon made landfall on northern Luzon near peak intensity on July 22, but quickly weakened over land. Once in the South China Sea, Imbudo re-intensified slightly before making its final landfall in southern China near Yangjiang on July 24, dissipating the next day.
Typhoon Mireille, known in the Philippines as Typhoon Rosing, was the costliest typhoon on record, until it was surpassed by Typhoon Doksuri in 2023. Striking Japan in September 1991, it became the 20th named storm of the 1991 Pacific typhoon season, Mireille formed on September 13 from the monsoon trough near the Marshall Islands. It moved westward for several days as a small system, steered by the subtropical ridge to the north. The storm rapidly intensified to typhoon status on September 16, and several days later passed north of Saipan in the Northern Marianas Islands. Mireille intensified further after deleterious effects from a nearby tropical storm subsided. On September 22, the American-based Joint Typhoon Warning Center (JTWC) estimated maximum 1-minute sustained winds of 240 km/h (150 mph), and on the next day, the official Japan Meteorological Agency (JMA) estimated 10‑minute sustained winds of 185 km/h (115 mph). The typhoon weakened slightly while turning northward, passing just east of Miyako-jima and later to the west of Okinawa. On September 27, Mireille made landfall near Nagasaki in southwestern Japan with winds of 175 km/h (109 mph), the strongest since Typhoon Nancy in 1961. The storm accelerated to the northeast through the Sea of Japan, moving over Hokkaido before becoming extratropical on September 28. The remnants of Mireille continued to the east, passing through the Aleutian Islands of Alaska on October 1.
Typhoon Ewiniar, known in the Philippines as Typhoon Ester, was the third named storm of the 2006 Pacific typhoon season and one that lasted for twelve days as a tropical cyclone, moving on a generally northward track. During its lifespan, it affected Palau, Yap, eastern China, the Ryūkyū Islands of Japan, South Korea as well as North Korea, briefly threatening to make landfall in North Korea before doing so in South Korea. Ewiniar is responsible for at least 181 deaths. However, an unofficial report stated that up to 10,000 people had been killed by flooding in North Korea, with 4,000 people missing.
Typhoon Matsa, known in the Philippines as Typhoon Gorio, was the second of eight Pacific tropical cyclones to make landfall on China during the 2005 Pacific typhoon season. The ninth tropical storm and fifth typhoon of the season, Matsa developed on July 30 to the east of the Philippines. Matsa intensified as it tracked northwestward, and attained peak 10-minute sustained winds of 150 km/h (93 mph) near Taiwan before weakening and striking the Chinese province of Zhejiang on August 5. The system continued northward into the Yellow Sea, and on August 7 Matsa became extratropical after again moving ashore along the Liaodong Peninsula. Matsa is a Laotian name for a lady fish.
Super Typhoon Kent, known in the Philippines as Typhoon Gening, was a powerful Category 4-equivalent typhoon that formed in late August during the 1995 Pacific typhoon season.
Typhoon Sepat, known in the Philippines as Super Typhoon Egay, was the eighth named tropical storm and the strongest tropical cyclone of the 2007 Pacific typhoon season, that affected the Philippines and made landfall in Taiwan and Fujian. Sepat originated on August 11 via a low-circulation center SE of Naha, Okinawa, and was named by the Japan Meteorological Agency as Sepat on August 12 and Egay in the Philippines by PAGASA as it entered the PAR. Sepat underwent an explosive intensification on the night of August 13, reaching peak intensity at Category 5-equivalent super typhoon intensity the following morning. The storm maintained its strength for 2 days, until it underwent an eyewall replacement cycle, just before he storm makes landfall in Taiwan on August 17 as a Category 3-equivalent typhoon. After crossing the Taiwanese strait, Sepat; already weakening into Category 1 status due to unfavorable conditions, made a second landfall in China on August 18, 2007. The storm persisted across Mainland China, as it transitioned into an extratropical cyclone on August 20, and Sepat, now an extratropical low continued through the Chinese mainland until it finally dissipated near Yunnan Province on August 24.
Typhoon Soudelor, known in the Philippines as Typhoon Egay, was a powerful typhoon that underwent rapid deepening east of Taiwan in the 2003 Pacific typhoon season. It was the sixth named storm by the Japan Meteorological Agency (JMA) of the season, as well as the third typhoon. It formed on June 12 from a disturbance in the monsoon trough, located east of the Philippines. The system moved generally to the northwest after its genesis, gradually intensifying into a tropical storm. While offshore the Philippines, Soudelor dropped heavy rainfall that caused flooding and left thousands homeless. The storm caused $2.46 million in damage, and 12 deaths.
Typhoon Maria was a minimal typhoon which brushed the southeastern coast of Japan during early August 2006. The seventh named storm of the 2006 Pacific typhoon season, Maria formed out of a tropical depression over the open waters of the western Pacific Ocean. On August 5, the Japan Meteorological Agency (JMA) classified the depression as a tropical storm while the Joint Typhoon Warning Center (JTWC) kept it as a depression. The storm quickly strengthened into a typhoon the next day, reaching its peak intensity with winds of 130 km/h early on August 6. The storm gradually weakened as it began to recurve, causing it to parallel the southeastern coast of Japan. On August 9, Maria weakened into a tropical depression and later into an extratropical cyclone before dissipating on August 15. Maria had only minor effects in Japan, mainly heavy rains which were estimated to have peaked over 400 mm (15.7 in) on the Izu Peninsula. One person was killed after being struck by lightning and six others were injured.
Typhoon Conson, known in the Philippines as Typhoon Frank, was the first of the record ten typhoons to impact Japan during the 2004 Pacific typhoon season. Developing out of a tropical depression near the northern Philippines in early June, Conson slowly traveled towards the north. Gradually strengthening, the storm reached typhoon status late on June 7 according to the Joint Typhoon Warning Center and several hours later according to the Japan Meteorological Agency. After turning towards the northeast, the typhoon brushed Taiwan and reached its peak intensity with 10-minute sustained winds of 150 km/h (90 mph) on June 9. After reaching its peak, Conson gradually weakened, passing through Okinawa before being downgraded to a tropical storm the next day. On June 11, the storm made landfall as a minimal tropical storm in the Kōchi Prefecture just before becoming extratropical. The extratropical remnants continued towards the northeast and were last mentioned on June 14 crossing the International Date Line.
Typhoon Sudal, known in the Philippines as Typhoon Cosme, was the strongest typhoon to strike the island of Yap in the Federated States of Micronesia (FSM) in about 50 years. Yap is one of the four administrative divisions of the FSM. The entire island, only 17 km (11 mi) in length, experienced typhoon force winds, and 90% of the structures were damaged or destroyed. Damage was most severe in southeastern Yap, where the eyewall struck and winds exceeded 185 km/h (115 mph), but the center of the typhoon passed south of the island.
Typhoon Kujira, known in the Philippines as Typhoon Amang, was a long-lived tropical cyclone that lasted for 16 days and affected the island nations of Micronesia, Taiwan, and Japan in April 2003, as well as the earliest typhoon in a calendar year to ever make landfall on the latter. Forming from a broad area of disturbed weather as a tropical depression on April 9 well removed from any landmasses, Kujira quickly intensified in its early stages, and was upgraded to a tropical storm just two days after cyclogenesis. Strengthening slowed afterwards, though the storm attained typhoon intensity on April 14. Intensification continued and late on April 15, Kujira reached its peak intensity with winds of 165 km/h (103 mph) and a minimum barometric pressure of 930 mbar. Following peak intensity, Kujira began to track northwest and oscillate in strength, cresting an additional two times in intensity. On April 21, the typhoon was downgraded to tropical storm intensity and began to track erratically for several days east of Taiwan. However, on April 24, Kujira resumed a northward track and begin to weaken, and on April 24 was downgraded to tropical depression strength as it made landfall on Kyushu. Following landfall Kujira transitioned into an extratropical cyclone and continued to persist before these extratropical remnants crossed the International Dateline towards the end of April 2003.
Typhoon Rammasun, known in the Philippines as Typhoon Florita, was the first of four typhoons to contribute to heavy rainfall and deadly flooding in the Philippines in July 2002. The fifth tropical cyclone of the 2002 Pacific typhoon season, Rammasun developed around the same time as Typhoon Chataan, only further to the west. The storm tracked northwestward toward Taiwan, and on July 2 it attained its peak intensity with winds of 155 km/h (96 mph). Rammasun turned northward, passing east of Taiwan and China. In Taiwan, the outer rainbands dropped rainfall that alleviated drought conditions. In China, the rainfall occurred after previously wet conditions, resulting in additional flooding, although damage was less than expected; there was about $85 million in crop and fishery damage in one province.
Typhoon Etau, known in the Philippines as Typhoon Kabayan, produced near-record winds and rainfall in Japan in August 2003. The tenth named storm and fifth typhoon of the 2003 Pacific typhoon season, Etau developed on August 2, and gradually intensified while moving to the northwest. Etau formed an eye and became a large storm by the time it approached Okinawa on August 7. The typhoon attained peak winds of 155 km/h (96 mph) before weakening slightly while turning to the northeast. Etau made landfall on the Japanese island of Shikoku on August 8, and later moved across portions of Honshu and Hokkaido. After weakening to tropical storm status, the cyclone became extratropical on August 9 and dissipated three days later.
Typhoon Songda, known in the Philippines as Typhoon Nina, was the fifth-costliest typhoon on record. The 18th named storm of the 2004 Pacific typhoon season, Songda developed on August 26 near the Marshall Islands. Following a path that Typhoon Chaba took nine days prior, Songda moved west-northwestward and strengthened quickly amid favorable conditions.
Typhoon Chan-hom, known in the Philippines as Typhoon Falcon, was a large, powerful and long-lived tropical cyclone that affected most countries in the western Pacific basin. The ninth named storm of the 2015 Pacific typhoon season, Chan-hom developed on June 29 from a westerly wind burst that also spawned Tropical Cyclone Raquel in the southern hemisphere. Chan-hom slowly developed while moving to the northwest, aided by warm waters but disrupted by wind shear. The storm meandered near the Northern Marianas Islands, passing over the island of Rota before beginning a steady northwest track. While near the island, the storm dropped heavy rainfall on neighboring Guam, causing flooding and minor power outages. Chan-hom intensified into a typhoon on July 7, and two days later passed between the Japanese islands of Okinawa and Miyako-jima. There, strong winds left 42,000 people without power, while 27 people were injured. Around that time, the storm caused a surge in the monsoon trough, in conjunction with Tropical Storm Linfa, which caused flooding and killed 16 people in the Philippines.
Typhoon Halola, known in the Philippines as Typhoon Goring, was a small but long-lived tropical cyclone in July 2015 that traveled 7,640 km (4,750 mi) across the Pacific Ocean. The fifth named storm of the 2015 Pacific hurricane season, Halola originated from a Western Pacific monsoon trough that had expanded into the Central Pacific by July 5. Over the next several days, the system waxed and waned due to changes in wind shear before organizing into a tropical depression on July 10 while well southwest of Hawaii. The depression strengthened into Tropical Storm Halola on the next day as it traveled westward. Halola crossed the International Date Line on July 13 and entered the Western Pacific, where it was immediately recognized as a severe tropical storm. The storm further strengthened into a typhoon over the next day before encountering strong wind shear on July 16, upon which it quickly weakened into a tropical depression as it passed south of Wake Island. However, the shear relaxed on July 19, allowing Halola to reintensify. On July 21, Halola regained typhoon status and later peaked with 10-minute sustained winds of 150 km/h (93 mph) and a minimum pressure of 955 hPa. From July 23 onward, increasing wind shear and dry air caused Halola to weaken slowly. The system fell below typhoon intensity on July 25 as it began to recurve northwards. Halola made landfall over Kyushu on July 26 as a tropical storm and dissipated in the Tsushima Strait shortly after.
