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Meteorological history | |
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Formed | September 27,2009 |
Dissipated | October 14,2009 |
Very strong typhoon | |
10-minute sustained (JMA) | |
Highest winds | 185 km/h (115 mph) |
Lowest pressure | 930 hPa (mbar);27.46 inHg |
Category 4-equivalent super typhoon | |
1-minute sustained (SSHWS/JTWC) | |
Highest winds | 250 km/h (155 mph) |
Lowest pressure | 922 hPa (mbar);27.23 inHg |
Overall effects | |
Fatalities | 500 total |
Damage | $617 million (2009 USD) |
Areas affected |
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IBTrACS | |
Part of the 2009 Pacific typhoon season |
Typhoon Parma,known in the Philippines as Super Typhoon Pepeng,was the second-wettest typhoon to affect the Philippines,and the second typhoon to affect the country within the span of a week during September 2009.
Typhoon Parma was named by PAGASA as Pepeng when it entered the Philippine Area of Responsibility days after Typhoon Ketsana wreaked havoc on the country;Parma spared the capital and instead lashed the northern part of Luzon island. 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. However,in the first week of October,Parma interacted with the incoming Typhoon Melor on the Pacific (via a Fujiwhara interaction),rendering it stationary as it made landfall on Southern Taiwan. Days later,the greatly weakened Parma retreated back to Luzon,making further landfalls on Ilocos Norte and Cagayan. The now Severe Tropical Storm Parma then began to wane its strength,as it crossed Luzon island for the second time. It then emerged on the South China Sea as a tropical depression,before restrengthening into a tropical storm and striking Hainan and Vietnam before finally dissipating in October 14.
Parma's bizarre,long-lived,and erratic track over northern Luzon led to near-record levels of rainfall, [1] causing devastating flooding that led to Parma becoming one of the deadliest typhoons to hit the Philippines in a decade. 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. [2] The system had an elongated low-level circulation center with convection developing around the center. [2] Upper level analysis showed that the system was located in an area of low vertical wind shear and had a good poleward outflow into a tropical upper tropospheric trough. [2] During the next day, convection started to consolidate before both the Japan Meteorological Agency (JMA) and the JTWC initiated advisories on the system, with the JTWC designating it as Tropical Depression 19W. After being classified, the depression remained weak and poorly organized, as it lay close to Tropical Storm 18W. During September 28, as the depression moved away from 18W, the JTWC reported that the depression had intensified into a tropical storm despite it remaining poorly organized, and acquired the name Parma.
Parma started to intensify to a typhoon as it moved closer to the Philippines. On October 1, Parma reached its peak intensity with winds of 250 km/h (155 mph). Afterwards, Parma started a weakening trend as it moved closer to the Philippines, and on October 3 made landfall northern luzon, Philippines. [3] [4] During its landfall in the Philippines, Parma began to travel northwest towards China. It slowed down and weakened (due to interactions with Typhoon Melor), then turned back south towards the Philippines. Parma made a second landfall on October 6 with sustained winds of 105 kilometres per hour (65 mph). [3] It weakened to a tropical depression before emerging off the east coast of Luzon on October 7, remaining stationary for a day. 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. [3] After regaining some strength, it travelled westward and hit the island of Hainan, China, with winds of 39 miles per hour (63 km/h). [5] It then made a final landfall in Vietnam on October 13, and dissipated over the country on October 14. [5]
Hurricane warning levels |
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Hurricane warning |
Hurricane conditions expected within 36 hours. |
Hurricane watch |
Hurricane conditions possible within 48 hours. |
Tropical storm warning |
Tropical storm conditions expected within 36 hours. |
Tropical storm watch |
Tropical storm conditions possible within 48 hours. |
Storm surge warning |
Life-threatening storm surge possible within 36 hours. |
Storm surge watch |
Life-threatening storm surge possible within 48 hours. |
Extreme wind warning |
Winds reaching Category 3 status or higher likely (issued two hours or less before onset of extreme winds). |
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. [6] Tropical storm warnings were then declared for Yap and Ngulu later that morning as the depression was moving to the northwest of Faraulep. [7] These warnings stayed in effect until early the next day when they canceled the warnings for Faraulep, Fais and Ulithi after the depression had intensified into a named storm, and had passed by the islands. [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]
Rank | Storm | Season | Damage | Ref. | |
---|---|---|---|---|---|
PHP | USD | ||||
1 | Yolanda (Haiyan) | 2013 | ₱95.5 billion | $2.2 billion | [13] |
2 | Odette (Rai) | 2021 | ₱51.8 billion | $1.02 billion | [14] |
3 | Pablo (Bopha) | 2012 | ₱43.2 billion | $1.06 billion | [15] |
4 | Glenda (Rammasun) | 2014 | ₱38.6 billion | $771 million | [16] |
5 | Ompong (Mangkhut) | 2018 | ₱33.9 billion | $627 million | [17] |
6 | Pepeng (Parma) | 2009 | ₱27.3 billion | $581 million | [18] |
7 | Ulysses (Vamco) | 2020 | ₱20.2 billion | $418 million | [19] |
8 | Rolly (Goni) | 2020 | ₱20 billion | $369 million | [20] |
9 | |||||
Kristine (Trami) | 2024 | ₱17.6 billion | $357 million | [21] | |
10 | Pedring (Nesat) | 2011 | ₱15.6 billion | $356 million | [15] |
The National Disaster Coordinating Council (NDCC) advised all local government officials across Luzon to evacuate people if needed to ensure their safety. In addition to the NDCC, they gave out relief goods and other necessities. President Gloria Macapagal Arroyo also requested PAGASA to monitor the super typhoon every two hours and update its website. [22] Also, the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) advised all areas with public storm signals to be alerted against storm surges, landslides, and flash floods. The Coast Guard placed the entire country under red alert, meaning that the agency would monitor the whole country, especially Northern and Central Luzon. 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. [23]
As preparations continued, different dams were opened and large amounts of water freed to avoid the overflowing of dams. In Isabela, the Magat Dam released a large amount of water. Its water was projected to pass through Cagayan River, forcing locals along the river to evacuate. The Angat Dam in Bulacan also released large amounts of water, flooding the towns of Calumpit and Hagonoy. Local officials took evacuated people living in the area. Five barangays in Nueva Ecija were already flooded due to water from Pantabangan Dam, which released 250 cubic meters per second from 1 pm on October 1, 05:00 (UTC) to 1 am on October 2, 17:00 (UTC). Local officials also took charge to evacuate people. In Laguna, the Caliraya Dam released water as a precaution against Parma's heavy rains, even though Laguna would not be directly affected by the super typhoon. [24] On the morning of October 2, President Gloria Macapagal — Arroyo declared the whole country under a state of calamity.
In Metro Manila, billboards were rolled down due to strong winds that were anticipated. Air travel, cargo ships, and other water transport throughout the Islands were suspended. [25] The Commission on Higher Education (CHED) suspended classes for regions 1, 2, 3, 4a, 4b, 5 and CAR. [26] In Laguna, the Laguna Lake Development Authority (LLDA) evacuated a massive 100,000 residents that live near the Laguna lake. [27]
Following the devastating impacts of Typhoon Morakot in August, residents in southern Taiwan were weary upon hearing of a new typhoon approaching the region. By October 3, residents of six villages in the hard hit county of Kaohsiung began evacuating. [28] The following day, the Central Weather Bureau issued a land warning for the Hengchun Peninsula as Parma moved over the northern Philippines. Residents in the region were advised to prepare for heavy rains and high winds in relation to the storm. [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. Emergency officials deployed 200 elite soldiers to the region to assist in the evacuation and placed 35,000 more on standby for relief operations. [31]
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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). As a result, Continental Micronesia cancelled its scheduled passenger flight to Guam, while the governor of Yap ordered that government employees stay at home and that residents take all precautions that were possible while placing Yap under the highest state of storm alerts. [34] [35] [36]
Precipitation | Storm | Location | Ref. | ||
---|---|---|---|---|---|
Rank | mm | in | |||
1 | 2210.0 | 87.01 | July 1911 cyclone | Baguio | [37] |
2 | 1854.3 | 73.00 | Pepeng (Parma) (2009) | Baguio | [38] |
3 | 1216.0 | 47.86 | Trining (Carla) (1967) | Baguio | [37] |
4 | 1116.0 | 43.94 | Iliang (Zeb) (1998) | La Trinidad, Benguet | [39] |
5 | 1085.8 | 42.74 | Feria (Utor) (2001) | Baguio | [40] |
6 | 1077.8 | 42.43 | Lando (Koppu) (2015) | Baguio | [38] |
7 | 1012.7 | 39.87 | Igme (Mindulle) (2004) | [41] | |
8 | 902.0 | 35.51 | Dante (Kujira) (2009) | [42] | |
9 | 879.9 | 34.64 | September 1929 typhoon | Virac, Catanduanes | [43] |
10 | 869.6 | 34.24 | Openg (Dinah) (1977) | Western Luzon | [44] |
Even though Parma was still too far to make its landfall in northern Philippines, various transportation was suspended before the super typhoon draw near. In Catanduanes, where the first signal warning no.3 was raised, the province's power and communications were cut. Fallen trees were already in the main roads. About 30,000 families were evacuated. In addition to the Bicol region, more than 2,000 passengers were stranded in ferry stations. [45] 39 provinces including Metro Manila were put to signal warnings, with each place experienced massive rainfall with strong winds. Parma made its landfall at Northeastern Cagayan at 3:00pm PST/07:00 (UTC). In Cagayan, at least 6,036 people in 39 barangays (villages) were affected, while P20.33 million worth of agricultural produce were destroyed. Also, in the Chico River was swelled due to the typhoon, making the Maguilling Overflow Bridge along the Cagayan–Apayao Road impassable. 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. Total power interruption also crippled the provinces of Kalinga, Apayao, and the northern towns of Isabela. In Kalinga, landslides were reported on roads linking the provincial capital, Tabuk, to upland towns. In Zambales, at least 2,100 families were evacuated as Pepeng brought heavy rains causing the Bucao River to swell. The Carael section of the Zambales highway became impassable due to rising floodwaters. [46] Due to heavy downpour, the San Roque Dam in Eastern Pangasinan and Pantabangan Dam in Nueva Ecija was forced to release huge amount of water. It caused major flooding in Tarlac which is their neighbouring province and also caused flooding Eastern and Central Pangasinan as well as Nueva Ecija. In Metro Manila the area is still experienced torrential rains and strong winds. Floodwaters continue to rise in some areas in Metro Manila and Calabarzon. In Pateros, Muntinlupa, and Taguig, in Taytay town in Rizal province, and in the towns of Biñan and San Pedro in Laguna province, the flood is not subsiding. Laguna de Bay is breaking a 90-year record in meters of water, which threatens to submerge more areas in Metro Manila. [47] In Benguet, a landslide killed at least 200 as Tropical Depression Parma continues to bring rain across northern Luzon. [48] Due to severe flooding, Leptospirosis became a problem that affected many. In Pasig City General Hospital alone, 30 people have been taken in for diagnosis. The Department of Health announced that there is a Leptospirosis outbreak in Marikina.
Torrential rainfall fell across southern Taiwan as Typhoon Parma stalled south of the island. In some areas, more than 500 mm (20 in) of rain fell, resulting in floods up to .5 m (1.6 ft) deep. These floods prompted emergency evacuations in hundreds of villages throughout Taiwan. 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. Several landslides were reported in mountainous regions, mainly in southern parts of the island. Military convoys loaded with sandbags traveled to rising rivers to help reinforce them and prevent them from overflowing their banks. As a result of the continuous rainfall and cloud cover, temperatures across Taiwan fell below average. [49]
Off the coast of Taiwan, a ship carrying 14 people sank after being battered by rough seas produced by Typhoon Parma. One person was confirmed dead, three were rescued and ten others were listed as missing. [50]
Off the cost of Hainan Island, a ship carrying nine people capsized. Three people were confirmed to have drowned, five were rescued and one other remains missing. [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. No deaths were reported. [52]
Due to the large number of fatalities and damage caused by the storm, the names Parma and Pepeng were later retired. The committee selected the name In-fa to replace "Parma" on the Western Pacific basin name lists beginning in 2011. For the PAGASA, on 2012, the name chosen to replace "Pepeng" was Paolo for the 2013 season.
The 2005 Pacific typhoon season was the least active typhoon season since 2000, producing 23 named storms, of which 13 became 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 2005, though most tropical cyclones typically develop between May and October. The season's first named storm, Kulap, developed on January 13, while the season's last named storm, Bolaven, dissipated on November 20. The season's first typhoon, Haitang, reached typhoon status on July 13, and became the first super typhoon of the year three days later.
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.
This timeline documents all of the events of the 2005 Pacific typhoon season, the period that tropical cyclones formed in the Western Pacific Ocean during the year. The scope of this article is limited to the Pacific Ocean, north of the equator between 100°E and the International Date Line. Tropical depressions that form in the basin were given a number with a "W" suffix by the United States' Joint Typhoon Warning Center (JTWC). If a depression intensified into a tropical storm, it would be assigned a name by the Japan Meteorological Agency (JMA). In addition, the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) assigned names to tropical cyclones which were in their area of responsibility.
The 2009 Pacific typhoon season was a below average season that spawned only 22 named storms, 13 typhoons, and five super typhoons. Despite this, it was a very deadly season, with the Philippines having experienced its deadliest season in decades due to the impact of typhoons Ketsana and Parma, while typhoon Morakot went on to become the deadliest storm to impact Taiwan in its modern history. The first half of the season was very quiet, whereas the second half of the season was extremely active. The season's first named storm, Kujira, developed on May 3, while the season's last named storm, Nida, dissipated on December 3.
Typhoon Ketsana, known in the Philippines as Tropical Storm Ondoy, was the second-most devastating tropical cyclone of the 2009 Pacific typhoon season, causing $1.15 billion in damages and 665 fatalities, only behind Morakot earlier in the season, which caused 956 deaths and damages worth $6.2 billion. Ketsana was the sixteenth tropical storm, and the eighth typhoon of the season. It was the most devastating tropical cyclone to hit Manila, surpassing Typhoon Patsy (Yoling) in 1970.
The effects of the 2009 Pacific typhoon season in the Philippines were considered some of the worst in decades. Throughout the year, series of typhoons impacted the country, with the worst damage occurring during September and October from Typhoons Ketsana (Ondoy) and Parma (Pepeng).
Typhoon Mirinae, known in the Philippines as Typhoon Santi, was the 34th depression and the 14th typhoon in the 2009 Pacific typhoon season. It came several weeks after Typhoons Ketsana and Parma devastated the Philippines, thus adding additional damage wrought by the two preceding typhoons.
Typhoon Nanmadol, known in the Philippines as Super Typhoon Mina, was the strongest tropical cyclone in 2011 to hit the Philippines and also the second most intense tropical cyclone worldwide in 2011, and the first of the year to directly impact Taiwan and the rest of the Republic of China (ROC). Becoming the eleventh named storm, the seventh severe tropical storm and the fourth typhoon of the 2011 Pacific typhoon season, Nanmadol made a total of three landfalls killing 26, and causing widespread damage worth US$26,464,591. The area of low pressure that was about to become Nanmadol formed on August 19. It drifted north and became a tropical depression on August 21, a tropical storm on August 23 and a typhoon on the same night. Nanmadol reached peak strength with winds of 100 knots and 140 knots threatening the Philippines with heavy rain and flash flooding.
Typhoon Nesat, known in the Philippines as Typhoon Pedring, was the most powerful tropical cyclone to directly impact China since 2005. It also struck the Philippines during the 2011 Pacific typhoon season, killing 98 people. It is the 17th named storm, the 11th severe tropical storm, the 7th typhoon and overall, the 30th tropical cyclone to be monitored by the Japan Meteorological Agency(JMA) during the year. Nesat came exactly two years after Typhoon Ketsana made landfall in the Philippines as the most devastating typhoon in the 2009 Pacific typhoon season with a damage of US$1.09 billion and 747 fatalities. Nesat was also the first of twin tropical cyclones to batter the Philippines within one week during September 2011, the second was Nalgae.
Typhoon Rammasun, known in the Philippines as Typhoon Glenda, was one of the only four Category 5 super typhoons on record in the South China Sea, with the other ones being Pamela in 1954, Rai in 2021 and Yagi in 2024. Rammasun had destructive impacts across the Philippines, South China, and Vietnam in July 2014. Rammasun is a Thai word for thunder god. After Lingling and Kajiki earlier in 2014, Rammasun became the third tropical cyclone, and first typhoon to directly impact the Philippines in 2014. The ninth named storm and the third typhoon of the annual typhoon season, Rammasun formed in the Intertropical Convergence Zone, an area near the equator where the northeast and southeast trade winds come together, and slowly drifted northwest. Having passed through the islands of Micronesia, the system turned west and quickly moved under the influence of a subtropical ridge (STR). Rammasun posed a significant threat to the Philippine island of Luzon, as it was expected to reach typhoon intensity before making landfall there. Though initially forecast to make landfall in Cagayan Valley, the storm followed a more westerly path and was later forecast to make landfall in Rapu-Rapu, Albay in Bicol Region and then pass through Bataan and Zambales before brushing past Metro Manila.
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. Kalmaegi started as a disturbance near Palau that could become a tropical cyclone in the next few days. JTWC would designate it to Tropical Depression 15W. PAGASA also named the system Luis as the 11th named storm inside PAR. Environmental conditions became more conducive for intensification, which allowed 15W to intensify into a tropical storm and attained the name Kalmaegi. On September 13, the storm intensified into a Category-1 typhoon as it moved through open warm waters. Around 17:00 PHT on September 14, the eye of Kalmaegi made landfall in the coastal town of Divilacan, Isabela, bringing gusty winds and heavy rains in the area.
Tropical Storm Fung-wong, known in the Philippines as Tropical Storm Mario, was a relatively weak tropical cyclone which affected the northern Philippines, Taiwan and the Eastern China. The sixteenth named storm of the 2014 typhoon season, Fung-wong caused severe flooding in Luzon, especially Metro Manila.
The effects of the 2013 Pacific typhoon season in the Philippines were considered some of the worst in decades. Throughout the year, a series of typhoons impacted the country, with the worst impacts coming from Typhoon Haiyan, especially in death toll, during November.
Typhoon Mangkhut, known in the Philippines as Super Typhoon Ompong, was a powerful and catastrophic tropical cyclone that caused extensive damage in Guam, the Philippines, and South China in September 2018. It was the strongest typhoon to strike Luzon since Megi in 2010, and the strongest to make landfall anywhere in the Philippines since Meranti in 2016. Mangkhut was also the strongest typhoon to affect Hong Kong since Ellen in 1983.
Tropical Depression Josie was a weak tropical system that impacted the Philippine archipelago of Luzon in July 2018, bringing widespread flooding. The tropical depression was classified in the South China Sea on July 20, and steadily moved eastward while gradually intensifying. The storm reached its peak intensity of 1-minute sustained winds of 65 km/h while nearing the northern tip of the Ilocos Region. By July 22, the system moved northward and rapidly weakened. The system was last noted on July 23 to the northeast of Taiwan.
Typhoon Saudel, known in the Philippines as Typhoon Pepito, was a typhoon that affected the Philippines, Vietnam and Southern China in October 2020. It was seventeenth tropical storm and seventh typhoon of the 2020 Pacific typhoon season. The name Saudel was used for the first time, replacing Typhoon Soudelor in 2015, which caused serious damage in Taiwan and Mainland China. Saudel formed from a tropical disturbance east of the Philippines. The disturbance gradually organized and crossed the Philippines as a tropical storm. Once the system emerged into the South China Sea, it began to rapidly organize and intensify, becoming a typhoon early on October 22.
Typhoon Vamco, known in the Philippines as Typhoon Ulysses, was a powerful and very destructive Category 4-equivalent typhoon that struck the Philippines and Vietnam. It also caused the worst flooding in Metro Manila since Typhoon Ketsana in 2009. The twenty-second named storm and tenth typhoon of the 2020 Pacific typhoon season, Vamco originated as a tropical depression northwest of Palau, where it slowly continued its northwest track until it made landfall in Quezon. After entering the South China Sea, Vamco further intensified in the South China Sea until it made its last landfall in Vietnam.
Typhoon Noru, known in the Philippines as Super Typhoon Karding, was an intense and destructive tropical cyclone that affected Vietnam, Thailand, and the Philippines — where it caused widespread agricultural damage. Noru, which means Roe deer in Korean, the sixteenth named storm and eighth typhoon, and third super typhoon of the 2022 Pacific typhoon season, Noru originated from a disturbance over the Philippine Sea, slowly tracking eastward until its development into a tropical depression, where it began to move westward.
Typhoon Chanthu, known in the Philippines as Super Typhoon Kiko, was the second most intense tropical cyclone worldwide in 2021 after Typhoon Surigae in April. It impacted the Cagayan Valley region of the Philippines and became the strongest typhoon to affect the Batanes province since Typhoon Meranti in 2016. The twenty-ninth tropical depression, fourteenth named storm and fourth typhoon of the 2021 Pacific typhoon season, Chanthu originated from a disturbance well east of the Philippine islands on September 5 which organized into a tropical depression later that day. By the next day, the depression had formed into a mature tropical storm which began to explosively intensify by September 7, featuring a pinhole eye on satellite, characteristic of rapidly intensifying storms. Chanthu became a Category 5-equivalent super typhoon by September 8, the highest category on the Saffir–Simpson scale. Subsequent eyewall replacement cycles caused intensity fluctuations, but on September 10, Chanthu peaked with 1-minute sustained winds of 285 km/h (180 mph) just northeast of extreme northeastern Luzon. The typhoon passed very near the Babuyan Islands before passing directly over Ivana, Batanes as a weakening but still powerful Category 5-equivalent super typhoon. Chanthu continued steadily weakening as it passed just east of Taiwan and eventually stalled just east of Shanghai, China. The storm eventually made its second and final landfall near Ikitsuki, Nagasaki in Japan, before crossing the country's mountainous terrain and becoming an extratropical cyclone on September 18. Chanthu then continued eastward and curved southward, before dissipating on September 20. According to Aon Benfield, economic losses totaled US$30 million.
Severe Tropical Storm Kompasu, known in the Philippines as Severe Tropical Storm Maring was a very large and deadly tropical cyclone that affected the Philippines, Taiwan, and southeast China. Part of the 2021 Pacific typhoon season, Kompasu originated from an area of low pressure east of the Philippines on 6 October 2021. The Japan Meteorological Agency (JMA) classified it as a tropical depression that day. A day later, the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) classified it as a tropical depression, naming it Maring. The cyclone was initially heavily disorganised, competing with another vortex, Tropical Depression Nando. Eventually, Maring became dominant, and the JMA reclassified it as a tropical storm, naming it Kompasu. Kompasu made landfall in Cagayan, Philippines, on 11 October 2021, and two days later, the storm made landfall in Hainan, China. The cyclone dissipated on 14 October 2021 while located over Vietnam.
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