Meteorological history | |
---|---|
Formed | September 15,2024 |
Extratropical | September 21,2024 |
Dissipated | September 27,2024 |
Tropical storm | |
10-minute sustained (JMA) | |
Highest winds | 85 km/h (50 mph) |
Lowest pressure | 992 hPa (mbar);29.29 inHg |
Tropical storm | |
1-minute sustained (SSHWS/JTWC) | |
Highest winds | 110 km/h (70 mph) |
Lowest pressure | 995 hPa (mbar);29.38 inHg |
Overall effects | |
Fatalities | 17 |
Injuries | 47 |
Missing | 12 |
Damage | $4.15 million (2024 USD) |
Areas affected | Philippines,Eastern China,South Korea,Japan (especially Ishikawa Prefecture),British Columbia |
Part of the 2024 Pacific typhoon season |
Tropical Storm Pulasan,known in the Philippines as Tropical Storm Helen,was a tropical cyclone that impacted East China,Japan,South Korea and the Philippines in September 2024. Pulasan developed over the Philippine Sea as a tropical depression on September 15 and strengthened into the fourteenth named storm of the annual typhoon season the following day. After gaining organization,the system rapidly developed and reached its peak intensity with winds of 85 km/h (50 mph) and a central pressure of 992 hPa (29.29 inHg). Pulasan then turned northwestward,eventually moving across Okinawa Island and making landfall in Zhoushan,Zhejiang,followed by a second landfall in Shanghai,just days after Typhoon Bebinca affected the Shanghai area on September 19. Pulasan reemerged over the East China Sea,just off the coast of China. By September 21,Pulasan had transitioned into an extratropical low as it moved east-northeastward and became embedded within the polar front jet to the north,passing over southern South Korea. The extratropical storm entered the Sea of Japan on September 22,crossed the Tōhoku region,and then emerged into the Pacific Ocean while being absorbed by another extratropical cyclone. The extratropical remnants of Pulasan were last noted by the Japan Meteorological Agency on September 24 near the International Dateline;however,the Ocean Prediction Center indicated that these remnants crossed the International Dateline and entered the Central North Pacific Ocean late on September 25. Afterward,the remnants gradually approached the coast of British Columbia,making landfall on September 27 and dissipating after moving inland the same day.
In China,more than 300 mm (12 in) of rainfall was recorded in Fengxian and Pudong Districts within a six-hour period,breaking historical records for each district since meteorological observations began. Xinhua reported that the city evacuated 112,000 people and suspended some ferry and train services. Heavy rains caused by Pulasan triggered widespread landslides and flooding in the Noto Peninsula,causing extensive damage that exacerbated the effects of the 2024 Noto earthquake,which devastated the region in January. In South Korea,the cities of Changwon,Yeosu and Busan recorded 519.2 mm (20.44 in),399.5 mm (15.73 in) and 390.2 mm (15.36 in) of rainfall,respectively,on September 21. The remnants of Pulasan caused 15,000 customers to lose power,primarily on Vancouver Island,especially in Campbell River and Courtenay. In total,the tropical storm caused at least 17 deaths,47 injuries,and left 12 people missing.
Tropical Storm Pulasan emerged from an area of atmospheric convection 196 km (122 mi) west-southwest of Andersen Air Force Base, Guam on September 14. [1] Satellite imagery indicated a broad, elongated area of circulation obscured by flaring and disorganized deep convection, with the disturbance situated in a favorable environment for development. [1] At 00:00 UTC on September 15, the Japan Meteorological Agency (JMA) designated the system as a tropical depression. [2] The United States Joint Typhoon Warning Center (JTWC) issued a tropical cyclone formation alert, noting that the system was disorganized, deep, fragmented, and had flaring convection obscuring the low-level circulation. [3] Shortly after, the depression intensified into a tropical storm and was named Pulasan by the JMA. [4] Pulasan was characterized by a large cyclonic circulation exceeding 690 miles (1,111 km) and extensive gale-force winds, leading the JTWC to classify it as a monsoon depression at 06:00 UTC on September 16, [5] before later upgrading it to a tropical storm and designating it as 15W. [6]
Pulasan progressed north-northeastward along the northwestern edge of a mid-level subtropical high, [7] with a band of enhanced winds encircling the eastern edge, accompanied by deep convection, while the center stayed clear and was supplied with dry air from a tropical upper tropospheric trough cell to the west. [8] By 11:00 PHT (03:00 UTC) on September 17, Pulasan had entered the Philippine Area of Responsibility (PAR) and was subsequently named Helen by the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA). [9] The JMA reported that Pulasan reached its peak intensity at 00:00 UTC, with 10-minute sustained winds of 85 km/h (50 mph) and a central pressure of 992 hPa (29.29 inHg). [2] By 12:00 UTC, the JTWC reported that the storm had peaked with 1-minute sustained winds of 110 km/h (70 mph). [10] Pulasan's low-level circulation has remained broad and somewhat exposed, [11] as dry air continues to encircle its southern side while the system moves northwestward along the southwestern edge of a mid-level subtropical high. [12] Pulasan exited the PAR on September 18 while traversing Okinawa Island in Japan's Ryukyu Archipelago as its circulation center strengthened with persistent convection, [13] [14] and satellite imagery displayed flaring convection along with weak easterly outflow over the East China Sea. [15] On September 19, Pulasan made landfall in Zhoushan, Zhejiang, followed by a second landfall in Shanghai, just days after Typhoon Bebinca affected the Shanghai area. [16] [17] As the storm moved overland, it maintained a well-defined circulation center; [18] however, the system gradually turned northeastward under the influence of mid-latitude prevailing westerlies. [19]
Pulasan reemerged over the East China Sea, just off the coast of Jiangsu, China, showcasing a large, near-symmetric area of deep convection to the southeast on September 20. [20] Meanwhile, satellite imagery and surface reports from Jeju Island indicated that it was in the earliest phase of extratropical transition, with vigorous deep convection occurring over the southern semicircle. [21] By 06:00 UTC on September 21, the JMA reported that Pulasan had transitioned into an extratropical low as it moved east-northeastward and became embedded within the polar front jet to the north, passing over southern South Korea. [22] [23] The JTWC then ceased issuing advisories on the system as it underwent frontogenesis while entering the baroclinic zone. [24] The extratropical storm entered the Sea of Japan on September 22, crossed the Tōhoku region, and then emerged into the Pacific Ocean while being absorbed by another extratropical cyclone. [25] The extratropical remnants of Pulasan were last noted by the JMA on September 24 near the International Dateline; [26] however, the Ocean Prediction Center indicated that these remnants crossed the International Dateline and entered the Central North Pacific Ocean late on September 25. [27] The remnants gradually approached the coast of British Columbia, [28] making landfall on September 27, [29] moving inland, [30] and dissipating the same day. [31]
The Yangjiazhai meteorological station in Fengxian District and the Nicheng Park meteorological station in Pudong District both recorded more than 300 mm (12 in) of rainfall within a six-hour period, breaking historical records for each district since meteorological observations began. [32] Due to Pulasan, winds of 83 km/h (52 mph) were recorded in Fengxian, Shanghai, where several roads and neighborhoods were flooded. [33] Xinhua reported that the city evacuated 112,000 people and suspended 26 ferry and 54 train services. [34] Total damage in China was estimated at 30 million yuan (US$4.15 million). [35] PAGASA reported that the southwest monsoon, enhanced by Soulik and Pulasan, will bring strong to gale-force winds across the Philippines. [36]
As Pulasan approached Japan, 44,700 residents from Wajima, Suzu, and Noto in Ishikawa Prefecture were given evacuation orders, along with 16,000 others in Yamagata and Niigata Prefectures. [37] The Japan Meteorological Agency issued the highest level of alert for heavy rain across several cities in Ishikawa. [38] Heavy rains caused by Pulasan triggered widespread landslides and flooding in the Noto Peninsula, causing extensive damage which exacerbated the effects of the 2024 Noto earthquake which devastated the region in January. [38] The floods killed 16 people, injured 47, destroyed 673 houses and damaged 1,284 others. [39] In Wajima, 120 mm (4.7 in) of rainfall was recorded within an hour. [40] Up to ten people were left missing in the town, including four due to a landslide at a construction site. [40] In Suzu, one person drowned and another was missing. In Noto, one person was missing and two others were critically injured after a landslide struck their home. At least twelve rivers across Ishikawa overflowed, and 6,500 households were left without power in the prefecture, according to the Hokuriku Electric Power Company. [38]
At least 903 people from 581 households were evacuated across six provinces in South Korea. [41] The cities of Changwon, Yeosu and Busan recorded 519.2 mm (20.44 in), 399.5 mm (15.73 in) and 390.2 mm (15.36 in) of rainfall respectively on September 21. Flooding affected 83 sections of public roads—leading to 18 incidents of soil loss and a wall collapse—30 private facilities and 27 houses. Two trucks fell into a sinkhole in Busan. [41] In Yangju city, Gyeonggi province, an elderly man died after being swept away by a torrent. [42] A total of 27 private homes were flooded, affecting almost 30 private businesses, including shops and factories. Moreover, 641 areas within 22 national parks throughout the country were still unreachable. [43] The remnants of Tropical Storm Pulasan have caused wind warnings for several areas in British Columbia, including the B.C. Coast, sections of Vancouver Island, the Central Coast, and Haida Gwaii, [44] while approximately 15,000 customers lost power, primarily on Vancouver Island, especially in Campbell River and Courtenay. [45]
The 2012 Pacific typhoon season was a slightly above average season that produced 25 named storms, fourteen typhoons, and four intense typhoons. It was a destructive and the second consecutive year to be the deadliest season, primarily due to Typhoon Bopha which killed 1,901 people in the Philippines. 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 2012, though most tropical cyclones typically develop between May and October. The season's first named storm, Pakhar, developed on March 28, while the season's last named storm, Wukong, dissipated on December 29. The season's first typhoon, Guchol, reached typhoon status on June 15, and became the first super typhoon of the year on June 17.
The 2015 Pacific typhoon season was a slightly above average season that produced twenty-seven tropical storms, eighteen typhoons, and nine super typhoons. The season ran throughout 2015, though most tropical cyclones typically develop between May and November. The season's first named storm, Mekkhala, developed on January 15, while the season's last named storm, Melor, dissipated on December 17. The season saw at least one named tropical system forming in each of every month, the first time since 1965. Similar to the previous season, this season saw a high number of super typhoons. Accumulated cyclone energy (ACE) during 2015 was extremely high, the third highest since 1970, and the 2015 ACE has been attributed in part to anthropogenic warming, and also the 2014-16 El Niño event, that led to similarly high ACE values in the East Pacific.
The 2016 Pacific typhoon season is considered to have been the fourth-latest start for a Pacific typhoon season since reliable records began. It was an average season, with a total of 26 named storms, 13 typhoons, and six super typhoons. The season ran throughout 2016, though typically most tropical cyclones develop between May and October. The season's first named storm, Nepartak, developed on July 3, while the season's last named storm, Nock-ten, dissipated on December 28.
The 2018 Pacific typhoon season was at the time, the costliest Pacific typhoon season on record, until the record was beaten by the following year. The season was well above-average, producing twenty-nine storms, thirteen typhoons, seven super typhoons and six Category 5 tropical cyclones. The season ran throughout 2018, though most tropical cyclones typically develop between May and October. The season's first named storm, Bolaven, developed on January 3, while the season's last named storm, Man-yi, dissipated on November 28. The season's first typhoon, Jelawat, reached typhoon status on March 29, and became the first super typhoon of the year on the next day.
This timeline documents all of the events of the 2012 Pacific typhoon season. The scope of this article is limited to the Pacific Ocean, north of the equator between 100°E and the International Date Line. During the season, 34 systems were designated as tropical depressions by either the Japan Meteorological Agency (JMA), the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA), the Joint Typhoon Warning Center (JTWC), or other National Meteorological and Hydrological Services such as the China Meteorological Administration and the Hong Kong Observatory. Since the JMA runs the Regional Specialized Meteorological Centre (RSMC) for the Western Pacific, they assigned names to tropical depressions which developed into tropical storms in the basin. PAGASA also assigned local names to systems which are active in their area of responsibility; however, these names are not in common use outside of the Philippines.
Typhoon Phanfone, known in the Philippines as Typhoon Neneng, was a powerful tropical cyclone which affected Japan in early October 2014. It was the eighteenth named storm and the eighth typhoon of the 2014 Pacific typhoon season. Phanfone started as a large area of convection well west of the International Date Line. The system was well organized and classified as Tropical Depression 18W on September 29. At the same day, it gained the name Phanfone due to very favorable conditions and intense thunderstorms rich with convection surrounding the storm's center. Phanfone would later go rapid intensification on October 1 due to warm sea-surface temperatures and very favorable environments. JTWC upgraded Phanfone to a Category 4 typhoon but weakened later back to Category 3 due to its eye replacing the old one and undergoing a minor eyewall replacement cycle.
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 Nangka was a large and powerful tropical cyclone that impacted central Japan in mid-July 2015. Nangka started its long-living journey as a tropical disturbance over the Marshall Islands and west of the International Dateline, becoming the eleventh named storm of the annual typhoon season on July 3. It quickly intensified while moving to the west-northwest, attaining typhoon status on July 6. Nangka moved through the Northern Marianas Islands, passing directly over the uninhabited island of Alamagan. Shortly thereafter, the typhoon attained peak winds; the Japan Meteorological Agency (JMA) estimated 10‑minute sustained winds of 185 km/h (115 mph), while the unofficial Joint Typhoon Warning Center (JTWC) estimated 1‑minute winds of 250 km/h (155 mph), making it a super typhoon. Nangka later weakened as it curved to the north, moving across central Japan on July 16 as a minimal typhoon. The storm weakened soon after, dissipating in the Sea of Japan on July 18.
Typhoon Chaba, known in the Philippines as Super Typhoon Igme, was the fourth most intense tropical cyclone in 2016 and the strongest tropical cyclone to make landfall in South Korea since Sanba in 2012. Chaba also caused 7 deaths in the country. Typhoon Chaba was the eighteenth named storm and the eighth typhoon of the 2016 Pacific typhoon season. Chaba originated as a depression around the east-northeast of Guam. Being in a marginally favorable environment, JMA proceeds to name the system as Chaba. On September 28, JTWC gave its identifier as Tropical Depression 21W. Its LLCC starts to improve, prompting the JTWC to upgrade into a tropical storm. Chaba entered the Philippine Area of Responsibility, receiving the name Igme as it moved northwestwards. Chaba became more symmetrical which later ensued its rapid intensification.
Typhoon Songda was the sixth most intense tropical cyclone of the Northwest Pacific Ocean in 2016. Also known as the Ides of October storm, it struck the Pacific Northwest region of the United States and Canada as a powerful extratropical cyclone. Songda was the twentieth named storm and the ninth typhoon of the annual typhoon season. The system developed into a tropical storm south of Minamitorishima on October 8 and strengthened into a typhoon on October 10. Songda reached its peak intensity southeast of Japan late on October 11 at an unusually high latitude, before it became extratropical on October 13.
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 3 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 in Peñablanca, Cagayan 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 Lan, known in the Philippines as Super Typhoon Paolo, was the third-most intense tropical cyclone worldwide in 2017, behind only hurricanes Irma and Maria in the Atlantic. A very large storm, Lan was the twenty-first tropical storm and ninth typhoon of the annual typhoon season. It originated from a tropical disturbance that the United States Naval Research Laboratory had begun tracking near Chuuk on October 11. Slowly consolidating, it developed into a tropical storm on October 15, and intensified into a typhoon on October 17. It expanded in size and turned northward on October 18, although the typhoon struggled to intensify for two days. On October 20, Lan grew into a very large typhoon and rapidly intensified, due to favorable conditions, with a large well-defined eye, reaching peak intensity as a "super typhoon" with 1-minute sustained winds of 249 km/h (155 mph) – a high-end Category 4-equivalent storm – late on the same day. Afterward, encroaching dry air and shear caused the cyclone to begin weakening and turn extratropical, before it struck Japan on October 23 as a weaker typhoon. Later that day, it became fully extratropical before it was absorbed by a larger storm shortly afterward.
The 2021 Pacific typhoon season was the second consecutive season to have below average tropical cyclone activity, with twenty-two named storms, and was the least active since 2011. Nine became typhoons, and five of those intensified into super typhoons. This low activity was caused by a strong La Niña that had persisted from the previous year. The season's first named storm, Dujuan, developed on February 16, while the last named storm, Rai, dissipated on December 21. The season's first typhoon, Surigae, reached typhoon status on April 16. It became the first super typhoon of the year on the next day, also becoming the strongest tropical cyclone in 2021. Surigae was also the most powerful tropical cyclone on record in the Northern Hemisphere for the month of April. Typhoons In-fa and Rai are responsible for more than half of the total damage this season, adding up to a combined total of $2.02 billion.
The 2022 Pacific typhoon season was the third consecutive season to have below average tropical cyclone activity, with twenty-five named storms forming. Of the tropical storms, ten became typhoons, and three would intensify into super typhoons. The season saw near-average activity by named storm count, although many of the storms were weak and short-lived, particularly towards the end of the season. This low activity was caused by an unusually strong La Niña that had persisted from 2020. The season's first named storm, Malakas, developed on April 6, while the last named storm, Pakhar, dissipated on December 12. The season's first typhoon, Malakas, reached typhoon status on April 12. The season ran throughout 2022, though most tropical cyclones typically develop between May and October. Tropical storms Megi and Nalgae were responsible for more than half of the casualties, while typhoons Hinnamnor and Nanmadol both caused $1 billion in damages.
The 2023 Pacific typhoon season was the fourth and final consecutive below-average season and became the third-most inactive typhoon season on record in terms of named storms, with just 17 named storms developing, only ahead of 2010 and 1998. Despite the season occurring during an El Niño event, which typically favors activity in the basin, activity was abnormally low. This was primarily due to a consistent period of negative PDO, which typically discourages tropical storm formation in this basin. The season was less active than the 2023 Atlantic hurricane season in terms of named storms, the fourth such season on record, after 2005, 2010 and 2020. The season's number of storms also did not exceed that of the 2023 Pacific hurricane season. Only ten became typhoons, with four strengthening further into super typhoons. However, it was very destructive, primarily due to Typhoon Doksuri which devastated the northern Philippines, Taiwan, and China in July, becoming the costliest typhoon on record as well as the costliest typhoon to hit mainland China, and Typhoon Haikui in September, which devastated China, Taiwan, and Hong Kong. The season was less active in Southeast Asia, with no tropical storm making landfall in mainland Vietnam.
Tropical Storm Rumbia was a rather weak but very destructive tropical cyclone that caused widespread and disastrous flooding in East China in August 2018. The twenty-second officially recognized tropical cyclone of the 2018 Pacific typhoon season, Rumbia developed from an area of low pressure that developed southeast of the Ryukyu Islands on August 13. Favorable environmental conditions supported development of the low into a tropical depression by August 15. At 12:00 UTC that day, the depression strengthened into Tropical Storm Rumbia, which refers to the Sago palm. Initially moving northward, the cyclone turned westward in response to a building ridge to its northeast while slowly strengthening, reaching its peak intensity with maximum 10-minute sustained winds of 85 km/h (50 mph) on August 16. At 20:05 UTC that day, the storm made landfall in Shanghai at peak intensity, maintaining its strength as it moved inland due to ample environmental moisture. However, Rumbia began to weaken as it continued further inland, degenerating into a tropical depression on August 17 shortly before becoming extratropical over central China. The extratropical remnants of Rumbia accelerated northeastward into the Russian Far East, where they dissipated on August 23.
Typhoon Faxai, known in Japan as Reiwa 1 Bōsō Peninsula Typhoon, was the first typhoon to strike the Kantō region since Mindulle in 2016, and the strongest typhoon to hit the region since Ma-on in 2004. It was also the worst to hit the region since Talas in 2011, until the region was hit by the more destructive Typhoon Hagibis less than a month later. Forming as the fifteenth named storm of the 2019 Pacific typhoon season, the precursor to Faxai was first noted as a weak tropical depression to the east of the International Dateline on August 29. The depression then entered the West Pacific basin on August 30. After moving in a general westward direction, the system strengthened into a named tropical storm by September 5. Faxai then strengthened into the sixth typhoon of the season the next day. Two days later, Faxai reached its peak strength as a Category 4 typhoon just before making landfall in mainland Japan. Turning northeastward, Faxai rapidly weakened and became extratropical on September 10.
The 2024 Pacific typhoon season was the fifth-latest starting Pacific typhoon season on record. It was a slightly above average activity, but also it ends the 4 years streak of below average seasons that started in 2020. It was also the deadliest season since 2013, and became the fourth-costliest Pacific typhoon season on record, mostly due to Typhoon Yagi. This season saw an unusually active November, with the month seeing four simultaneously active named storms. The season runs throughout 2024, though most tropical cyclones typically develop between May and October. The season's first named storm, Ewiniar, developed on May 25, and eventually intensified into the first typhoon of the season, while the last named storm, Pabuk, dissipated on December 26. This season was an event in the annual cycle of tropical cyclone formation in the western Pacific Ocean.
Severe Tropical Storm Maliksi, known in the Philippines as Severe Tropical Storm Domeng, was a tropical cyclone in June 2018 that brought rainfall to the Philippines and Japan. It caused 2 deaths and prompted the PAGASA to declare the beginning of the rainy season in the Philippines. The fifth named storm and 4th tropical cyclone in the Philippine Area of Responsibility (PAR), it was first noted as an area of convection in the South of Palau on May 31.
Typhoon Mindulle was a long-lived and strong typhoon that lasted out the sea. As the seventeenth named storm, and the sixth typhoon of the 2021 Pacific typhoon season, Mindulle originated from a area of low pressure 703 nmi southeast of Guam. It quickly organized until attaining the name Mindulle. Mindulle eventually became a Category 1 typhoon on September 25 in 3:00 UTC. Wind shear slowed its rapid intensification, but it still managed to intensify. Mindulle eventually reached Category 5 typhoon the next day, as the storm had a large eye in its center. Wind shear weakened the storm, but reintensified. On October 2, JMA issued its last advisory as it becomes extratropical as it continues moving northeast.