Typhoon Nesat (2011)

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Map key
  Tropical depression (≤38 mph, ≤62 km/h)
  Tropical storm (39–73 mph, 63–118 km/h)
  Category 1 (74–95 mph, 119–153 km/h)
  Category 2 (96–110 mph, 154–177 km/h)
  Category 3 (111–129 mph, 178–208 km/h)
  Category 4 (130–156 mph, 209–251 km/h)
  Category 5 (≥157 mph, ≥252 km/h)
  Unknown
Storm type
Disc Plain black.svg Tropical cyclone
Solid black.svg Subtropical cyclone
ArrowUp.svg Extratropical cyclone, remnant low, tropical disturbance, or monsoon depression

During September 21, the Joint Typhoon Warning Center (JTWC) reported that a tropical disturbance had developed at the eastern end of a monsoon trough, about 360 km (225 mi) to the southeast of Melekeok on the island of Palau. [5] The disturbance had a well defined low level circulation centre with convection flaring around it and was located in a region of moderate vertical windshear. [5] Over the next 24 hours the depression moved towards the northeast, while gradually developing further. The Japan Meteorological Agency and the JTWC then reported during September 23 that the disturbance had developed into a tropical depression, with the latter designating it as Tropical Depression 20W. [6] [7]

Early on September 24, the JMA further upgraded 20W to a tropical storm and named it Nesat. [8] Nesat continued to drift west with expanding deep convection around the entire system and consolidating convection around the LLCC. The mid-level warm anomaly near the system continued to intensify and convective banding near the LLCC became more and more tighter. [9] As a result, the JMA upgraded Nesat to a severe tropical storm on September 25. [10] Nesat was originally expected to have undergone rapid intensification until September 25, but the JTWC later reported that the sea surface temperatures was a little less than expected and Nesat could not strengthen rapidly. However, Nesat was still strengthening. With an extremely well developed equatoward outflow, Nesat already had a windspeed of 75 knots (139 km/h; 86 mph) (1-min sustained). [11] Late on September 25, the JMA further upgraded Nesat to a typhoon. [12]

Tropical Storm Nesat intensifying off the Philippine coast on September 25 Nesat Sept 25 2011 0200z.jpg
Tropical Storm Nesat intensifying off the Philippine coast on September 25

On September 26, an image from Advanced Microwave Sounding Unit (AMSU), a multi-channel microwave radiometer installed on meteorological satellites depicted that Nesat developed an eye like feature approximately 225 nautical miles (417 km; 259 mi) east-northeast of Manila, Philippines. At that time, it had a 1-min sustained wind speed of 80 knots (150 km/h; 92 mph) with deep convection primarily over the western semicircle of the system. [13] The system rapidly deepened and quickly developed a 30 nautical miles (56 km; 35 mi) ragged eye and mesoscale anticyclone aloft generating an exceptionally excellent all-around outflow. Also, the system had a highly symmetric radial outflow. The JTWC Originally anticipated Nesat to become a Category 5 super typhoon on the SSHS with winds exceeding 130 knots (240 km/h; 150 mph) (1-min sustained). However, because of a cold anomaly, the system only reached a maximum 1-min sustained wind speed of 115 knots (213 km/h; 132 mph) making it a minimum Category 4 typhoon. [14]

Early on September 27, Nesat made landfall over the Luzon region of Philippines. As a result, the eyewall got eroded and the maximum 1-min sustained winds dropped to 95 knots (176 km/h; 109 mph). The system approached land at nearly 10 knots (19 km/h; 12 mph). [15] However, later on that day, the LLCC started to get re-consolidated with convection as Nesat quickly moved west and re-emerged over water. At that time, it was located near the southern periphery of a deep layered subtropical steering ridge and moved towards the southwest and the winds further dropped to 85 knots (157 km/h; 98 mph) because of land interaction. [16] Though the system has maintained overall central deep convection, subsidence persisted along the northwest quadrant which caused further drop in wind speed. Upper level analysis indicated that Nesat was to the south of a ridge axis in an area of moderate vertical wind shear. [17] The system continued to weaken with convective banding loosely wrapped into the partially exposed LLCC. The winds continued to drop and eventually reached 65 knots (120 km/h; 75 mph) (1-min sustained) which made it a minimal typhoon on the SSHS. Though the weakening, Water vapour imagery showed that the typhoon was still maintaining excellent outflow towards the equator and improving outflow towards the pole. [18] Nesat maintained a relatively large area of gale-force winds. Animated infrared satellite imagery depicted that the storm was expanding in size and convective banding continued to move further and further away from the LLCC. The LLCC was also relatively large, elongated and cloud free. [19]

On September 29, by the time Nesat managed to re-develop a 10 nautical miles (19 km; 12 mi) ragged eye, it made landfall over Wenchang in Hainan, China and started weakening again. Because of the poor shape and disorganization at the LLCC, the typhoon could only maintain a maximum 1-min sustained windspeed of 65 knots (120 km/h; 75 mph). [20] Even after the landfall, Nesat maintained vigorous convection all around the LLCC and did not weaken too much when compared to the reactions after the Philippine landfall. There was a sea-surface temperature of approximately 28 °C (82 °F) and a slight vertical wind shear of 10 knots (19 km/h; 12 mph) near the system's center at that time. The JTWC anticipated the storm to gradually drift over the Gulf of Tonkin and make landfall over Vietnam with a 1-min sustained wind speed of at least 50 knots (93 km/h; 58 mph). [21] Early on September 30, Nesat made its final landfall over northern Vietnam with a 1-mim sustained windspeed of 55 knots (102 km/h; 63 mph) and a well-defined, tightly wrapped LLCC, and soon it started weakening. Due to land interaction, the convection around the system started decaying rapidly. [22] Due to the rapid weakening, the JTWC ceased advisories on the storm, soon afterwards. [23] Later that evening, the JMA downgraded Nesat to a tropical low over land and issued their final warning on the system. [24]

Preparations and impact

Typhoon Nesat (Pedring)
Nesat 2011-09-26 1758Z.jpg
Nesat nearing the Philippines at peak intensity on September 26, 2011
Impact by country or region
CountryDeathsMissingDamage (USD)Sources
Philippines8518$ [25] [26]
Vietnam8$
China52$ [27] [28] [29]
Totals9820$

Philippines

Water vapor imagery of Typhoon Nesat making landfall in the Philippines at peak intensity late on September 26 Nesat 2011 Philippine Landfall.jpg
Water vapor imagery of Typhoon Nesat making landfall in the Philippines at peak intensity late on September 26

As Nesat neared the Philippines, the Philippine government ordered the evacuation of residents living in low-lying areas, cancelled flights and suspended classes on all levels. By the morning of September 26, some 111,000 people in the flood-prone areas of the Albay Province were ordered to leave their homes. Nearly 63 flights were either delayed or cancelled due to the storm. [30] The provinces of Albay, Catanduanes and the Camarines were placed under storm warning Signal Number 2 while the provinces of Metro Manila, Masbate, Marinduque, Batangas, Cavite, Bulacan, Pampanga and most of the Northern Luzon provinces were placed under storm warning Signal Number 1. [31] Even though Manila was placed in Storm Signal 2 (which suspends Pre-school, Elementary, and High school levels only), many universities, like the University of the Philippines Diliman & Manila and Polytechnic University of the Philippines, Main Campus, suspended classes.

Early on September 27, Typhoon Nesat struck the Philippines with a maximum 1-min sustained wind speed of 105 knots (194 km/h; 121 mph) and killed four people after pinning them under a collapsed wall in Valenzuela. [32] The typhoon pounded the Luzon region of the Philippines triggering flash floods, cutting power and halting daily activity in the capital Manila. The Philippine Stock Exchange and US embassy were forced to close due to the strong winds and heavy rains. [33] The residents of Manila had no other choice but to wade through waist-deep floodwaters, dodging branches and flying debris as the typhoon sent surging waves as tall as palm trees over seawalls completely submerging neighborhoods. By the evening of September 27, at least 7 people were reported to be killed and most of them in metropolitan Manila, a place already battered by heavy monsoonal rains. A motorcyclist in the city reported that "It's flooded everywhere. We don’t have a place to go for shelter. Even my motorcycle got filled with water". He was one of the thousands stranded by fast-rising flood in the city. [34] Similar to Tulane University during Hurricane Katrina, the Ospital ng Maynila Medical Center moved patients from its ground floor which was flooded with neck-deep waters. Hospital generators were flooded and the building had no power once the typhoon arrived. Soldiers and police in trucks moved thousands of residents, most importantly the women and the children away from the Baseco shanty town after many houses were washed away in the storm surge and floodwaters brought by Nesat. [35] The typhoon made landfall before dawn triggering instant response. [36]

Costliest Philippine typhoons
RankStormSeasonDamageRef.
PHP USD
1 Yolanda (Haiyan) 2013 ₱95.5 billion$2.2 billion [37]
2 Odette (Rai) 2021 ₱51.8 billion$1.02 billion [38]
3 Pablo (Bopha) 2012 ₱43.2 billion$1.06 billion [39]
4 Glenda (Rammasun) 2014 ₱38.6 billion$771 million [40]
5 Ompong (Mangkhut) 2018 ₱33.9 billion$627 million [41]
6 Pepeng (Parma) 2009 ₱27.3 billion$581 million [42]
7 Ulysses (Vamco) 2020 ₱20.2 billion$418 million [43]
8 Rolly (Goni) 2020 ₱20 billion$369 million [44]
9 Paeng (Nalgae) 2022 ₱17.6 billion$321 million [45]
10 Pedring (Nesat) 2011 ₱15.6 billion$356 million [39]

Nearly thirty-seven percent of Manila Electric Company's service area was left without power after high winds and heavy rains toppled power lines. A company spokeswoman reported that "About 1.9 million customers of the nation's biggest power retailer are still without electricity. That's about 39 percent of its 4.9 million customers, compared with 44 percent who were without power at midday." Also, in Malabon, Navotas and Valenzuela the Manila Electric power company shut down power to prevent any accidents. Dina Lomotan, the company spokesman said that "Manila Electric will try to restore power as conditions permit, prioritizing areas not directly affected by the storm." [46] President Benigno Aquino III said "I have been in touch with Secretaries Soliman, Gazmin, and Almendras. I have instructed the Executive Secretary to compile information from National Disaster Risk Reduction and Management Council and to inform our people of conditions as well as of government efforts to mitigate the effects of the storm." He also said "I am in constant touch with the members of my cabinet and the Executive Secretary has been instructed to keep me and the public informed of conditions pertaining as well as mitigation efforts". [47] On September 28, the death toll from Nesat was put at 18 and the number of missing at 35 after the day-long rain and winds. The National Disaster Risk Reduction and Management Council chief Benito Ramos said "We are focusing on trying to get power and telecommunications services today, and work crews have also fanned out to repair and clear 61 road networks across Luzon damaged by landslides, debris and floods". The extremely high storm surges brought by Nesat crashed over seawalls, flooding a hospital, a five-star hotel and the US embassy near Manila. As more power lines were downed, nearly a million people in Luzon and some areas in the capital Manila remained without power for the rest of September 27 and 28. [48]

Among the hardest hit provinces were Isabela and Aurora where most of the population was directly dependent on Agriculture. [49] Out of the total known deaths, most of them were reported to have occurred in and around metropolitan Manila. Santiago Austria, the mayor of Jaén, a 1st class municipality in the province of Nueva Ecija said "We only have four boats but there are so many people waiting to be rescued. Many people here are still on top of their houses. We don't have enough boats to reach them and hand them food." The strong winds that blew through Manila toppled about 40 huge trees around the coastline from where thousands of people were moved from shantytowns into three different school buildings. [50] The number of passengers stranded after Nesat's approach was as high as 4,476 in various ports 28 vessels and 20 motorized bancas were stopped at several ports in Luzon. A spokesman from the Philippine Coast Guard said that the bulk of stranded persons were stuck in ports in Manila, with 3,672; Lucena, 280; and Batangas, 140. [51] By the night of September 28, Nesat's death toll eventually rose to 31. At that time, the first figures of the total estimated damage to agriculture and infrastructure started coming up and was put at 1 billion pesos (22.8 million U.S. dollars). The Philippine Department of Health, which is the executive department of the Philippine Government responsible for ensuring access to basic public health services to all Filipinos prepared medical supplies including 2.9 million pesos (66,360 U.S. dollars) worth of food and emergency supplies so that they can be distributed among the victims when the flood water recedes. [52]

State of calamity

Rain from Typhoon Nesat Nesat 2011 rainfall.png
Rain from Typhoon Nesat

The Department of Social Welfare and Development (DSWD) and Philippine National Police (PNP) instantly responded to the state of emergency. The DSWD provided a total of 1.5-million Philippine Peso worth of relief goods and the PNP dispatched personnel and medical teams in order to assist the victims. The National Electrification Administration administrator Edita Bueno said that "More than 900,000 out of 1.2 million consumers were still cut off from the grid, but repairs are ongoing and electric cooperatives would have to wait for the grid's complete restoration before they could bring back electricity." [53]

NDRRMC Situation reports

Early on September 29, the National Disaster Risk Reduction and Management Council (NDRRMC) issued a Situation report on the typhoon mentioning that at least 35 people were killed while 34 were injured and 45 still remained missing. They also added that the total amount of damage to agriculture and infrastructure was put at US$26,208,476. They mentioned that a total of 83 emergency incidents were monitored in various regions that were directly hit by the typhoon. In the hardest hit provinces, at least 25 folding beds; 18 tents; 40 boxes of blankets; 125 pieces of plastic mat; 200 pieces of water jugs; 125 pieces of mosquito nets; 5 pieces of protective suits; 5 pairs of goggles; 5 pieces of oil resistant boots, 5 pieces of rain coats; 10 pieces of gloves; 5 pieces of helmets; and 10 pieces of T-shirts were provided to the victims. [54] Following the daily pattern of Situation reports, the NDRRMC issued another report on September 30, pushing up the number of dead to 43, the number of injured to 44 while pulling down the number of missing to 30. They reported that the total number of people affected were 986,417 in about 205,885 families. They also announced that there was a drastic increase in the total amount of damage from Nesat to both agriculture and infrastructure. They said that the total damage was at US$91,356,378 out of which US$78,893,835 was to agriculture alone. According to the report, the storm completely destroyed a total of 3,394 houses while 12,901 were badly damaged. [55]

Again on October 1, the NDRRMC reported the number of dead was as high as 50, the number of injured was 61 and the number of missing was 31. They further increased the total damage from Nesat to both agriculture and infrastructure to around US$136,957,559 where nearly US$123,951,792 was to agriculture alone. They said that a total of 60 bridge/road sections were reported impassable during the storm. The reports also indicated that all the transmission lines affected by the typhoon were put back to normal and power was restored completely. The NDRRMC further added that the Philippine National Police deployed a total of 87 deployed personnel in Hermosa, Bataan, Tarlac, Bulacan, and Pampanga; a total of 579 personnel deployed to help in the evacuation and rescue operations in the provinces of Aurora, Pampanga, Bulacan, Tarlac, and Angeles City. [56] On October 2, the NDRRMC finalized the death toll to 52, the number of injured to 63 and the number of missing to 30. Also, they announced that the total damage to agriculture and infrastructure was amounted to US$153,316,943; making it one of the most destructive tropical cyclones ever to hit the archipelago. [57]

However, again on October 3, the NDRRMC confirmed more deaths, putting the number of dead at 85; the number of injured at 65 and the number of missing at 2. Also, they announced that Nesat was one of the costliest typhoons to have affected the nation by putting the total damage from Nesat to both agriculture and infrastructure at US$333 million. [58]

Highest Public Storm Warning Signal

PSWS#LuzonVisayasMindanao
3Ilocos Norte, Ilocos Sur, Abra, Kalinga, Apayao, Mt. Province, Cagayan, Isabela, Ifugao, Benguet, La Union, Nueva Vizcaya, Quirino, Northern portion of Quezon including Polillo Island, Aurora, Pangasinan, Nueva Ecija, Tarlac, Zambales, Camarines Norte, Camarines Sur, CatanduanesNoneNone
2Bulacan, Pampanga, Bataan, Batangas, Cavite, Laguna, Rizal, Lubang Island, Batanes, Babuyan Islands, Calayan Islands, Rest of Quezon, Metro ManilaNoneNone
1Oriental Mindoro, Occidental Mindoro, Marinduque, Romblon, Burias Island, Masbate including Ticao Island, Albay, SorsogonNorthern SamarNone

China, Malaysia and Vietnam

Typhoon Nesat organizing in the South China Sea on September 28 Nesat 28 Sep 2011.jpg
Typhoon Nesat organizing in the South China Sea on September 28

On September 28, China's flood control authority activated their emergency response system so that they can cope up with the upcoming typhoons Nesat, and Nalgae. The authority requested local governments in relevant areas to closely monitor both the typhoons and keep the public aware of what is happening. They initiated a level IV typhoon response program and sent two working teams to the provinces of Guangdong and Hainan so that they can assist people in all the preparations that they have to make. [59] The passenger ferry services linking the southern island province of Hainan and the rest of the nation were halted as typhoon Nesat neared land. Nesat was expected to be the strongest to hit Hainan in six years. The Hainan provincial meteorological bureau's director, Cai Qinbo, advised all people living in coastal areas to evacuate and also to brace for flash floods and other storm related natural disasters that Nesat may bring to the nation. [60] Ships were recalled, flight and ferry services were suspended and schools were shut as the strongest typhoon to directly impact Hainan in 2011 was approaching its final landfall. In order to ensure the safety of the children, most kindergartens, primary and middle schools in Haikou, the capital of Hainan suspended classes very early. The Meilan Airport in Haikou city canceled a total of 49 flights. [61] In all, 5 people were killed in South China. [28] [29] Total economic losses in South China were amounted to be CNY 11.10971 billion (US$1.736 billion), including 2.86 billion CNY in Guangdong Province, 2.436 billion CNY in Guangxi, 5.81371 billion CNY from Hainan Province. [27] [28] [29]

Typhoon Nesat near landfall in Hainan, China on September 29 Nesat 29 Sep 2011.jpg
Typhoon Nesat near landfall in Hainan, China on September 29

Nesat approached China just one day after the preparations for it started. On September 29, the Hong Kong Stock Exchange was shut down after the Hong Kong Observatory hoisted a number eight storm signal. The government offices and courts were also closed, delaying the widely anticipated ruling in Vallejos v. Commissioner of Registration . [62] [63] The strong winds injured at least three people after Nesat slammed into the southern Chinese island of Hainan forcing more than 100,000 people to leave their homes. [64] Nesat was one of the strongest storms to strike the nation after the highest storm warning in two years was issued in Hong Kong as Typhoon Nesat swept past the city. All flights and high-speed railway services to the resort city of Sanya in Hainan were canceled or indefinitely delayed as the typhoon approached. [65] Powerful tail winds from Nesat affected areas in the west coast of Sabah on the northern part of Borneo. The winds caused power lines being knocked down causing power outages affecting 15,000 consumers. The winds also caused trees being uprooted, and roofs and billboards destroyed. State Meteorological Department recorded winds up to 95 km/h. [66] The typhoon then hit Vietnam and weakened into a tropical storm. The disaster officials in Vietnam said that "The fish and shrimp farmers had been moved to safe areas along the northern and central coasts. Some 4,000 people, mostly the elderly, women and children, were also evacuated in three coastal districts in Nam Định province." [67] [68] Because of the low strength of the storm, the damages from Nesat to china were expected to be near US$50 million. AIR Worldwide said that "Insurance penetration for typhoons is quite low in China, particularly for residential risks, and insurance penetration varies by province, Hainan having one of the lowest rates in China." [69] However, on October 4, the state run Xinhua News Agency confirmed that the damage exceeded 900 million United States dollars or 5.8 billion yuan as Nesat was one of the strongest typhoons to hit Hainan, affecting at least 3.77 million people. [70]

Hong Kong and Macau

In Hong Kong, many functions and activities were canceled or postponed because of the fast approaching storm. The Hong Kong's stock market, all courts, tribunals, court registries and offices were completely shut for the rest of September 29. Also, the education bureau announced suspension of all classes and the Hospital Authority suspended general out-patient and specialist clinics for the entire day too. In order to help people in need of refuge during the landfall, the city's Home Affairs Department opened 11 temporary shelters in various districts across Hong Kong. [71] Macao's public transportation system was also suspended after typhoon signal No. 8 was hoisted by most local meteorological authorities. Macao's Meteorological and Geophysical Bureau issued signal 8 while the storm was estimated to be about 350 km south of Macao at 4:00 a.m. local time. The local traffic authorities reacted in a timely manner and closed all the three sea-crossing bridges of the island city. [72] Late on September 27, the Hong Kong Observatory and the Macau Weather bureau hoisted the standby signal no.1, so that residents of the regions, could start to make preparations for the incoming typhoon. Both weather offices then issued Strong Wind Signal No. 3 later that day, before hoisting issuing the No. 8 Gale or Storm Signal on September 29 as Nesat started to affect the regions with easterly gale-force windspeeds. All signals were then lowered during September 30. [73] [74] Within Hong Kong, 418 reports of fallen trees and 15 reports of collapsed scaffolding were received by the Hong Kong Observatory, with a total of 25 people injured while at the Hong Kong airport over 40 flights were cancelled due to the adverse weather associated with Nesat.

Aftermath

Typhoon Nalgae

Tropical Storm Nalgae intensifying off the Philippine coast on September 29 Nalgae Sept-29-2011.jpg
Tropical Storm Nalgae intensifying off the Philippine coast on September 29

On September 30, the Americans living in Philippines were reminded by the United States government "to carry their travel documents at all times and secure them in a safe and waterproof location." The government launched the helpline numbers 1-888-407-4747 and 1-202-501-4444 so that the people traveling within the nation can obtain updated information from the Department of State. [75] Also, the PAGASA insisted all people living in the low-lying areas to leave immediately. The said that "Even areas that are currently not flooded are in danger because water from flooded communities will eventually seep into neighboring areas." [76] [77] The PAGASA hoisted public storm warning signal number 3 in Cagayan and Isabela provinces as the storm drifted closer. They said that "The coming storm is expected to bring strong winds, but authorities are more concerned about the amount of rainfall it will pour." Fears worsened as the typhoon came in less than 5 days after Nesat devastated the same place and also lead to a state of calamity being declared. Five towns in Cagayan were still flooded and the same place was to be hit by Nalgae, which is much more stronger than Nesat. [78]


The extremely strong winds blown by Nalgae set off a rockslide in northern Bontoc provincecausing boulders to roll down a mountainside and smash on a passing van, killing one man. In the rice-growing province of Bulacan north of Manila, several hundreds of people in several towns remained trapped on their rooftops as the floodwaters brought by Nesat never retreated and more flooding and rain was brought by Nalgae. Rescuers aboard rubber boats could not reach them because the alleyways were too narrow. Officials said that two army helicopters would be later deployed to rescue the victims. [79] [80]

The Rescue workers scrambled through the floodwaters on October 2, so that they could be able to deliver food, water and other relief materials to hundreds of villagers stuck on rooftops since several days after the twin typhoons ravaged the nation. Seven towns north of Manila including Calumpit in rice-growing Bulacan province continued to be under waist-high waters after the rains brought by Nalgae, the 17th tropical cyclone to affect the disaster-prone nation in 2011. Helicopters were able to deliver food via air, but could rescue none of those who were on the rooftops since 4 days. [81] On October 3, Philippine authorities rushed aid to thousands of people marooned in their flooded homes for a week since Nesat and Nalgae together battered the nation. After a long time, the flood water slowly started receding and the rescue workers were able to deliver food and other relief materials to those in need. In Calumpit. one of the worst hit towns, a construction worker in line for receiving the relief materials said to a new agency, "We have no food to eat, and no clean drinking water." [82] It was later reported that at least 8 million people living in the Philippines have experience faced much worse floods than the earlier destruction caused by typhoon Nesat. The disaster management chief Benito Ramos said "The fight is not over yet. I hope the (Nesat) floods will wash out to Manila Bay before the (Nalgae) runoff hits the area. If the latter catches up to the former, there won’t be any rooftops left to see above the floodwaters." The local weather agency announced that the water levels on the tributaries of major central Luzon rivers were still continuing to rise fast and posed a threat to the nearby towns and villages. [83]

Retirement

Due to extremely high amount of damage that the storm has caused in the Philippines, the PAGASA announced that the name, Pedring would be stricken off their tropical cyclone naming lists despite its first usage. In June 2012 the name Perla was chosen by PAGASA for the 2015 season. However, due to the limited number of typhoons that entered Philippine area of Responsibility on that year, the name wasn't used, and instead was first used in the 2019 season.

See also

Other similar comparisons to Nesat:

Other tropical cyclones that caused severe damage to Metro Manila:

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Typhoon Nalgae, known in the Philippines as Typhoon Quiel, was a powerful tropical cyclone that struck the Philippines, and it affected Hainan, China as a weak tropical storm. Nalgae was the eighth typhoon and the fourth super typhoon in 2011. Forming as the 32nd tropical depression of the season, the system formed on September 26 over the Philippine Sea. On September 27, it was named Nalgae as it explosively intensified into a typhoon on the next day. Nalgae reached its peak intensity as a Category 4 typhoon on September 30 while it made landfall over Luzon. Nalgae weakened into a tropical storm as it entered the South China Sea on October 1. Nalgae made landfall over the island of Guandong in China on October 4 as it weakened to a tropical depression. Nalgae dissipated on October 5 east of Vietnam.

<span class="mw-page-title-main">Typhoon Kai-tak (2012)</span> Pacific typhoon in 2012

Typhoon Kai-tak, known in the Philippines as Severe Tropical Storm Helen, was a mild tropical cyclone that affected China, Vietnam and Laos. It was the seventh typhoon and the thirteenth named storm of the 2012 Pacific typhoon season. The storm killed 41 people and caused a sum of US$765 million in losses. Kai-tak can be tracked back to the broad area of disturbance embedded in a monsoonal trough that was first spotted, early on August 10. It was only at midnight, on August 16, when the JMA officially declared Kai-tak a typhoon. On the morning of August 17, the windspeed dropped to 60 knots and was no longer a typhoon. The typhoon caused heavy damage in China's two provinces killing four people and causing huge economic loss. Kai-Tak slammed the northern Philippines triggering flash floods and landslides and killing at least ten people, one week after deadly monsoon rains battered the country. In Vietnam, Kai-Tak has stormed across the country's north bringing high winds and floods to several areas including the capital Hanoi.

<span class="mw-page-title-main">Typhoon Chebi (2006)</span> Pacific typhoon in 2006

Typhoon Chebi, known in the Philippines as Super Typhoon Queenie, was a powerful typhoon that impacted Luzon during November 2006. Chebi is the third typhoon since Typhoon Xangsane to hit the country destructively. The 30th tropical depression developed east of the Mariana Islands on October 31 as a weak disturbance. The system was dubbed into a tropical depression on November 8, until both the JMA and PAGASA upgraded it to a tropical storm on November 9. Chebi rapidly intensified to a Category 4 typhoon the next day and made landfall over northern Philippines on November 11. The system finally dissipated near Hong Kong and Vietnam on November 14.

<span class="mw-page-title-main">Timeline of the 2011 Pacific typhoon season</span>

This timeline documents all of the events of the 2011 Pacific typhoon season, the period that tropical cyclones formed in the Western Pacific Ocean in 2011. Most of the tropical cyclones formed between May and November 2011. The scope of this article is limited to the Pacific Ocean, north of the equator between 100°E and the International Date Line. Tropical storms that form in the entire Western Pacific basin are assigned a name by the Japan Meteorological Agency (JMA). Tropical depressions that form in this basin are given a number with a "W" suffix by the United States' Joint Typhoon Warning Center (JTWC). In addition, the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) assigns names to tropical cyclones that enter or form in the Philippine area of responsibility. These names, however, are not in common use outside of the Philippines.

<span class="mw-page-title-main">Typhoon Rammasun</span> Pacific typhoon in 2014

Typhoon Rammasun, known in the Philippines as Typhoon Glenda, was one of the only three Category 5 super typhoons on record in the South China Sea, with the other ones being Pamela in 1954 and Rai in 2021. Rammasun had destructive impacts across the Philippines, South China, and Vietnam in July 2014. Rammasun is a Siamese 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.

<span class="mw-page-title-main">Typhoon Kalmaegi (2014)</span> Pacific typhoon in 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. 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.

<span class="mw-page-title-main">Typhoon Hagupit (2014)</span> Pacific typhoon in 2014

Typhoon Hagupit known in the Philippines as Super Typhoon Ruby, was the second most intense tropical cyclone in 2014. Hagupit particularly impacted the Philippines in early December while gradually weakening, killing 18 people and causing $114 million of damage in the country. Prior to making landfall, Hagupit was considered the worst threat to the Philippines in 2014, but it was significantly smaller than 2013's Typhoon Haiyan.

<span class="mw-page-title-main">Typhoon Nesat (2017)</span> Pacific typhoon in 2017

Typhoon Nesat, known in the Philippines as Typhoon Gorio, was a strong tropical cyclone that impacted Taiwan and Fujian, China. It was the ninth named storm and the second typhoon of the annual typhoon season. After consolidating slowly for several days, Tropical Storm Nesat developed east of the Philippines on July 25. While experiencing favorable environmental conditions such as very warm sea surface temperatures and low wind shear, Nesat strengthened into a typhoon and reached its peak intensity on July 28. On July 29, the typhoon made landfall near the Taiwanese city of Yilan, before weakening to a severe tropical storm and making landfall again near Fuqing on China's east coast late the same day. Moving into July 30, Nesat continued to weaken under the effects of land interaction.

<span class="mw-page-title-main">Tropical Storm Pakhar (2017)</span> Pacific severe tropical storm in 2017

Severe Tropical Storm Pakhar, known in the Philippines as Tropical Storm Jolina, was a strong tropical storm that impacted South China during late August 2017. This storm followed Typhoon Hato which affected the area a few days prior. Pakhar was the fourteenth named storm of the Pacific typhoon season. Pakhar developed from a tropical depression to the east of Luzon during August 24, and intensified into a tropical storm later that day. Pakhar made landfall over in Aurora on August 25. Pakhar gradually intensified and peaked as a severe tropical storm by August 27, making landfall over Taishan, Jiangmen in Southern China.

<span class="mw-page-title-main">Tropical Storm Haikui</span> Pacific tropical storm in 2017

Tropical Storm Haikui, known in the Philippines as Tropical Storm Salome, was a weak tropical cyclone that affected the Philippine archipelagos of Luzon and Visayas. Forming as the twenty-fourth named storm of the 2017 typhoon season, Haikui developed as a tropical depression to the east of Samar on November 9. Traversing some Philippine islands, the system gradually intensified into a named tropical storm by November 10. In that same day, Haikui emerged to the South China Sea.

<span class="mw-page-title-main">2022 Pacific typhoon season</span>

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.

<span class="mw-page-title-main">Typhoon Saudel</span> Pacific typhoon in 2020

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.

<span class="mw-page-title-main">Tropical Storm Kompasu (2021)</span> Pacific tropical storm in 2021

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.

<span class="mw-page-title-main">Tropical Storm Nalgae</span> Pacific severe tropical storm in 2022

Severe Tropical Storm Nalgae, known in the Philippines as Severe Tropical Storm Paeng, was a very large and deadly tropical cyclone that wreaked havoc across the Philippines and later impacted Hong Kong and Macau. Nalgae, meaning wing in Korean, the twenty-second named storm of the 2022 Pacific typhoon season, Nalgae originated from an invest located east of the Philippines on October 26. The disturbance, initially designated as 93W, was eventually upgraded the following day to a tropical depression by the Joint Typhoon Warning Center (JTWC) and re-designated as 26W. The Japan Meteorological Agency (JMA) however, had already considered the disturbance as a tropical depression a day prior to JTWC's; the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) also followed the JMA's lead and gave it the name Paeng. That same day, it was upgraded again by the JMA to tropical storm status, thus gaining the name Nalgae.

<span class="mw-page-title-main">Tropical Storm Talim (2023)</span> Pacific tropical storm in 2023

Severe Tropical Storm Talim, known in the Philippines as Tropical Storm Dodong, was a compact tropical cyclone that affected the Philippines, China, and Vietnam. The fourth named storm of the 2023 Pacific typhoon season, Talim originated from a weak monsoon depression east of Manila while moving towards Luzon. The system continued to track westward close to the northern edge of mainland Luzon before emerging off the coast of Ilocos Norte. A favorable environment allowed the fledgling tropical storm to rapidly intensify to a Category 2-equivalent typhoon on the Saffir–Simpson scale. The storm maintained this intensity until shortly before landfall near Zhanjiang, Guangdong on July 17. Talim quickly weakened and dissipated early on July 18.

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