2009 Pacific typhoon season

The Pacific typhoon season in 2009 is the collection of occurring in 2009 in the western Pacific Ocean tropical cyclones. In contrast to the Atlantic Ocean and its marginal seas of the typhoon season has no official boundaries, but is as the calendar year. Most tropical cyclones form here However, between May and November. Tropical cyclones that form north of the equator and west of the International Date Line are called typhoons. The east of the 180th meridian forming storms are the subject of the Pacific hurricane season of 2009.

• 3.1 Philippines

Season forecasts

Since the Pacific typhoon season of 2000, the Laboratory for Atmospheric Research created at the City University of Hong Kong predictions about the expected number of tropical cyclones, typhoons and storms named during a season. The forecast will be published in April and updated in June. For the 2009 season, the CityUHK expect an above-average course of the season. An average season includes based on the data from 1950 to 2000, calculated by the University of 31 tropical cyclones, 27 named storms and 17 typhoons. In the forecast published in April CityUHK predicts 31 tropical cyclones, 27 named storms and 18 typhoons. In addition, the Institute assumes that four tropical cyclones cross the coast of southern China from May to August. In a normal season, this happened three times from May to August and twice between September and December.

The Central Weather Bureau of Taiwan was in its forecast of 30 June on the assumption that it would come in the western Pacific to 24-27 tropical storms, of which three to five could have an impact on Taiwan.

Storms

Tropical Depression Auring

On 30 December 2008, the Philippines was formed southeast of Manila, an area of ​​disturbed weather. The system has been identified by the JTWC late on January 1 as a tropical disturbance, the prospects for development into a tropical cyclone rated the JTWC as bad. From the JMA, the system was observed as a tropical depression. On the morning of January 3, PAGASA placed the name Auring. However, the system was unable to significantly step up and was graded on 5 January by PAGASA for depression. The remnant low brought about east of Luzon, Bicol and Visayas widespread heavy showers.

Heavy rain and flooding forced to Mindanao 38 764 persons to prospect for emergency shelters. One person killed and two others remained missing. The traffic was also affected and numerous ferries, buses and trucks had to interrupt their trips. 305 houses were destroyed and another 610 damaged. The property damage caused by the low-pressure system were 23 million PHP - $ 500,000 (2009) - appreciated.

Tropical Depression Bising

On February 9, was formed 150 km north of Palau A tropical disturbance. Satellite images showed the presence of a deep convection on the northern edge of a non-tropical trough, which was embedded in an area moderate vertical wind shear. The next day the JTWC reported that the disturbance had dissolved. However, it regenerated in the early morning of February 12 and reached the responsibility of Pagasa as Tropical Depression Bising with wind speeds of around 45 km / h its greatest intensity, which is why PAGASA Sturmwarmungen for parts of Visayas and Mindanao triggered. After the landfall of the low pressure area on Dinagat PAGASA recanted all storm warnings for this system. Between Liloan and Ormoc ferry traffic was temporarily stopped as the traffic to and from Cebu. The remnant low generated on February 14 area as heavy rain in the south of Luzon, in the Bicol region and the Visayas before it dissolved. On the island of Cebu, the rain caused landslides that blocked a main road.

Tropical Depression Crising

In the early morning of April 29 was formed 430 km southwest of Manila a Wetterstärung. Satellite images showed a roll-shaped near-surface circulation with broken Konvektionsbändern at its southwestern edge. The system was in a zone with low vertical wind shear. During the day, the system continuously consolidated under the influence of an anti- cyclone. The next morning, PAGASA showed the system to the local name Crising and reported the Crising wind speeds of 55 km / h reached. A few hours later were issued for parts of the west of Luzon storm warnings, while the system is in the South China Sea was moving slowly to the west. During the day they interacted Crising and the weather disturbance, which later developed into a typhoon Kujira, each other. As a result Crisings circulation center was only weakly defined. The system failed to regenerate and to May 2 PAGASA gave for the Philippines the last warnings.

Heavy rains through the outer rain bands Crisings led to the west of the Philippines floods, of which about 2,500 residents were affected. The worst were the floods in Lucena City where ten villages were cut off. Areas of Bucon and Inalmasinan were flooded and resulted in significant damage to the crop. In the region drowned several animals, roads were washed away by flood water or impassable due to landslides. In Mercedes.

Typhoon Kujira ( Dante )

In the early morning of April 26 was formed in the vicinity of Baler, Aurora a weather disturbance, which was originally the tail end of a cold front that passed through the northern Luzon. The JTWC estimated the possibility that would develop this disorder within 24 hours of becoming a tropical cyclone, first as a good, on April 28, said Pearl Harbor the system as breaking up what the interactions by Tropical Depression Crising and of JMA Tropical depression 03 classified system declined. The system drew a days, in southwestern direction, and passed over Albay. On May 1, the system reorganized on water and was classified in the afternoon by PAGASA as Tropical Depression Dante. Storm warning signal number one was placed in the provinces of Camarines Norte, Camarines Sur, Albay, Sorsogon, Catanduanes, Masbate, and Burias for the South Quezons. PAGASA reported that Dante went into another country in Sorsogon in the Bicol region. In the early morning of May 2, Dante remained almost stationary, and was classified during the day by the JMA as a full depression. Early the next day, the system reached the strength of a tropical storm and was named Kujira. The storm continued to intensify and was in the afternoon of May 3 for severe tropical storm. The JMA downgraded Kujira on the morning of May 4 to the typhoon, which continues to rapidly intensified and developed within 24 hours of a typhoon equivalent to Category 2 on the Saffir -Simpson Hurricane Scale to a Category 4 typhoon. On May 6, the JTWC reported the start of the transition to an extratropical cyclone, as the ground-level circulation center had almost completely detached from the convection and the vertical wind shear increased and the water surface temperature decreased. Later, the JMA Kujira classified as a severe tropical storm, strong wind shear because the system demanded of tribute. Early in the morning of the 7th of May, the JMA downgraded from a tropical storm Kujira; during the day Kujira was fully extratropical.

In the Philippines caused Kujira around 626 million pesos damage to crops and livestock, as well as a further 102 million pesos to the irrigation systems for agriculture. Through the national crisis team total of 28 people were dead on May 12 and for a reported missing. Affected by the impact of the storm 383 457 persons were given in Barangay 609 in 60 municipalities and four cities in five provinces of the region V. The material damage was 1.228 billion Philippine pesos, of which 626 million in damage to agriculture and about 530 million on infrastructure and houses omitted. A total of 138 were completely and partially destroyed in 2249.

Tropical depression from 1 May

On April 20 was formed southeast of Yap a weather disturbance that moved slowly in the next few days to the northwest. On April 27, the JTWC and JMA declared unanimously that the system will dissolve, but the next day it regenerated itself and began to pull to the southeast. In the early morning of May 2, the system had intensified into a minor tropical depression. By noon of the day the system was weaker, partly due to strong wind shear and the other by the interactions with the evolving Typhoon Kujira. The JMA continued her observations continued until the 4th of May. Then a ground-level circulation was only identified that completely dissolved until May 7.

Typhoon Chan - hom ( Emong )

On May 1, to an area with convective clouds combined with a weather disturbance southeast of Nha Trang, Vietnam, and with a residual Crisings, thus forming a strong new weather system. Because of slight vertical wind shear and an anticyclone in the amount which lay east of the system, the system intensified and was classified by the JMA as a small tropical depression. The system initially migrated to the southeast and the early morning of May 3, to the east. The system intensified further and was upgraded on that day by the JMA to a tropical storm and was named Chan - hom. On May 4, intensified Chan - hom to severe tropical storm. On 6 May, the hurricane wandered into the area of ​​responsibility of PAGASA and received the local name Emong. After further intensification of the storm by the RSMC Tokyo was incremented to typhoon. On May 7, PAGASA reported that the typhoon on the northern tip of Bolinao had moved away.

After crossing Pangasinans he had an impact on La Union, Ilocos Sur, Benguet, Nueva Vizcaya, Ifugao, Kalinga, and Isabela. Pangasinan ( with 150 mm of rainfall by Emong ) and La Union were the provinces most affected. Weather stations of the provinces in the middle of Luzon, Ilocos, Cordillera Administrative Region and Cagayan Valley as well as in Metro Manila and parts of the south of Luzon reported on May 7, rainfall exceeding 100 mm within 24 hours. However, the rain by the typhoon lasted from the 6th to 8th May. The national disaster center said on May 13 that the typhoon killed 50 people and injured 47 has, the number of missing at this point was 13 The damage to property was reported to be 690 million Philippine pesos. 204,000 people were affected by the typhoon. Of the total 23 280 6080 damaged houses were totally and 17,200 partially destroyed. In addition, the typhoon triggered landslides in 11 Zambales and Cagayan. On May 8, Chan - hom was graded to a tropical storm and during the day to Tropical Depression. The JMA was the morning of May 9, the final warning, but the system was still watching until the final resolution of the circulation on May 13, when the system was carried by the jet stream in a northwesterly direction.

Severe Tropical Storm Linfa

In the early morning of June 10, the JTWC reported the formation of an area of ​​disturbed weather about 140 km southeast of Palau. The disorder had an elongated circulation center, whose deep convection developed in the southwest quadrant. A tropical wave supplied the system with a good outflow and thereby reinforced the deep convection in the center of the circulation, which was now in a zone with moderate wind shear. In the following days, the disturbance developed steadily and was classified in the morning of June 14 by the JMA as the fifth tropical depression of the season. A few hours later sparked the JTWC Tropical Cyclone Formation Alert a ( TCWA ), as the system was about 520 kilometers southeast of Manila. The JMA, however, published in the daily course of their final warning on the system and classified it as a non-tropical low pressure area, while the JTWC TCFA the revoked because the convection was thrown much weaker near the ground-level circulation center. A QuikSCAT analysis showed that at the time the near-surface circulation was embedded in the monsoon trough, whereas observations of the higher air layers showed that despite the presence of very dry air, the environment remained advantageous for cyclone development. On 15 and 16 June, the remnant low brought heavy rains to the islands of Luzon, as it pass over any the Philippines. When it arrived in the South China Sea, a new TCFA was late on 16 June by the JTWC initiated. The next morning, the JMA reported that the disturbance intensified into a second tropical depression. The system intensified on June 18, Tropical Storm Linfa, which was led by the JTWC under the name of 03W, while located about 705 km south-southwest of Kaohsiung, Taiwan was.

Due to the further development of the lows it classified the JTWC on the evening of June 17 to a tropical storm up. The next morning the JMA named the storm Linfa. During the day, limited poleward outflow directed Linfa prevented them to strengthen further. On 19 June, Linfa intensified further into a severe tropical storm and it formed an eye out. The effect of a nearby height lows the discharge and Linfa improved strengthened further developed, so that the storm was upgraded the next day to a typhoon by the JTWC, the one-minute top speed of 140 km / h reached. Later in the day the convection subsided in the center and the eye disappeared. Wind shear in the height prevented a further reinforcement of the typhoon. As Linfa to the mainland approached, led the exposure of the country on June 21 to graduate to a tropical storm. In the afternoon, the storm moved into the southern Chinese province of Fujian on land. The convection broke up quickly, as the storm center from the coast line, so that was graded by the JTCW and the JMA to a tropical depression on 22 July Linfa. The system broke up just off the coast.

During the storm, seven people were killed and there was a damage of 110 million U.S. dollars. Affected areas were China, Taiwan, Hong Kong and the Philippines. South of Taiwan was an oil tanker because of high waves due. In Taiwan, two people were killed by falling trees. In Chiangchun and other areas of China and Taiwan, there were power outages. Agriculture in Taiwan suffered a loss of 12.1 million U.S. dollars. In China, torrential rains caused severe flooding. There were landslides, one person was killed. The floods destroyed 100 houses, 10,000 more homes were flooded, as well as 32,000 acres of farmland in the province of Fujian. Once within 9 hours 413.7 mm of rain had fallen, five more people were killed by the subsequent floods in Meizhou in the province Guongdong. In the town of 362 houses were destroyed and the infrastructure was severely damaged. Approximately 20 million people were affected by the storm.

Tropical Storm Nangka ( Feria )

On June 16, was formed about 170 km northeast of Palau, a weather disturbance, which, although developed in the next few days, but did not have a gutdefiniertes near-surface circulation center. In the early morning of June 20 the disturbance began to suddenly intensify, and also the circulation center was consolidated. The disorder was below easier vertical wind shear. At 6:00 clock UTC on June 22, the JMA classified the system as a tropical depression. The convection beogonnen had to organize themselves and the analyzes of the higher air layers showed a circulation center to the west of Guam. The JTWC led the system as 04W while PAGASA on June 23, the local name Feria awarded.

At 17:00 clock local time (9:00 UTC clock ) came the storm at Hernani Eastern Samar in the country and five hours later again in Masbate. As Nangka hinwegzog on June 24 after his third landfall at 4:30 clock in Calapan City on Mindoro, the wind speeds decreased rapidly. Nagka took eight hours to cross the Mindoro and was graded from PAGASA to a tropical depression; However, JMA and JTWC retained the classification as a tropical storm at Nangkas yet. Early on June 25, Nangka moved over the South China Sea, so PAGASA issued the final warning because of the storm left their area of ​​responsibility. In the evening both the RSMC Tokyo and the JTWC Nangka classified as a tropical depression, because the ground-level circulation center began to fall apart. The system arrived at noon of June 26 for the fourth time on land, now in the Guangdong province in the People's Republic of China, and it brushing against the northern areas of Hong Kong. Several hours later, the JMA and JTWC spent the last warnings to Nangka. The residual depth of the storm dissipated on June 27 completely.

In Eastern Samar the ferry was discontinued. Unusually heavy thunderstorms developed in the foothills of the storm in other parts of the Philippines. In San Pascual, Bauan and Batangas City fell large hailstones. Heavy rainfall associated with Nangka flooded several regions, in part, the water was waist high. Later reports confirmed that a tornado destroyed 23 houses in Barangay. In Cebu was killed by the impact of the storm, at least one person. At least 500 inhabitants of the Philippines were left homeless by Nangka. In Cavite 7000 were stuck travelers, because the port was closed due to heavy rain and waves. The storm surge reached here a Höohe of approximately 1.2 m above the normal level.

By Nangka at least six people were killed in the Philippines, eleven more were missing, according to official data on June 24. The material damage was from the National Civil Protection Commission on 2.8 million Philippine pesos valued ( 54,000 USD).

Tropical Storm Soudelor ( Gorio )

On July 7, the JTWC reported that 900 km northwest of Yap has formed a weather disturbance. Deep convection embedded in a broad and weak circulation with poorly trained center, which began to increase on account of a tropical lows east of the system. During the next few days, the system developed, until it was finally triggered by the JTWC Tropical Cyclone Formation Alert on July 9. PAGASA named the system Tropical Depression Gorio. Later, the JTWC issued warnings in which the system was referred to as 05W, while the JMA hesitated until the next day to publish warnings. On July 10, PAGASA issued its final warning to Gorio. While he drew it away from their area of ​​responsibility, it was hampered by an unfavorable level flow. The depression strengthened gradually and both the JTWC and the JMA reported a gain to a tropical storm until the next morning. The storm was named by JMA Soudelor. Later that day the JTWC reported that has Soudelor weakened into a low pressure area. However, it was again upgraded to a tropical storm as it approached the Hainan Province. On July 11, the assault from the JTWC and JMA downgraded to a tropical depression. The JTWC issued its final warning in the afternoon. On 13 July, the last message was published by the JMA.

Tropical Depression Huaning

On July 10, the JTWC reported that about 1065 km east of Manila has formed a weather disturbance. The convection was associated with a well-defined circulation and lay under a anticyclone. The system began with the construction of an effluent into a trough northeast of the system and was classified on July 11 by the JMA as a tropical depression, officially the eighth of the season. The system continued to evolve, however, did not reach the official status of a tropical storm, although PAGASA led the systen on July 13 as a tropical storm and assigned the local name Huaning. The depression moved in a northwesterly direction and arrived at Chung Yang on Taiwan over the country. There weakened itself, so that the JMA and the JTWC issues its final warnings to the system on July 14.

Typhoon Molave ​​( Isang )

Late on July 10 was about 280 kilometers southeast of Yap a weather disturbance. The convection was embedded in a poorly developed ground-level circulation center and was covered by minimal wind shear. In the course of the next day, the system continued to develop. On July 12, the JTWC noted, however, that the disorder has dissolved because of the outflow of the system was inhibited by Huaning sparked the late 13th July, however, again a TCFA. The JMA classified the system on July 14 as a tropical depression and PAGASA showed the system to the local name Isang. The depression grew and intensified on July 15, a tropical storm. On July 17, the JMA downgraded the storm to a highly severe tropical storm. On the morning of July 18 intensified to typhoon Molave ​​, who moved rapidly into the South China Sea. On 19 July at 17:00 UTC clock ( clock 01:00 HKT) pulled the Storm over the country. In the afternoon of the day the JTWC and JMA spent the last warnings to the system that slowed over mainland China rapidly becoming a tropical depression. The effects of the typhoon Molave ​​killing at least four people.

Tropical Storm Goni ( Jolina )

Late on July 25, the JTWC reported the formation of convection that formed around the center of a near-surface low-pressure area in the monsoon trough about 815 km northeast of Guam. An anti- cyclone and a tropical trough in the upper troposphere ensured outflow over the next few days, the system developed over time, but on 28 July the system was declared to be resolved, because the ground-level circulation center no longer seemed particularly well organized and under the influence strong vertical wind shear was.

On July 30, the disorder, about 630 km from Guam reorganized away, with a protracted circulation center, which had several vertebrae. After a further intensification PAGASA said that a tropical disturbance had formed and had the system applicable only for the Philippines to name Jolina. The depression strengthened further and was classified by the JMA on July 31 as a tropical depression. After the deep convection had intensified and consolidated around a circulation center, the JTWC Tropical Cyclone Formation Alert was one from August 1. On the morning of the same day Jolina pulled in Casiguran in Aurora Province, however, about the country and came only during the day in the South China Sea. On August 2, PAGASA stopped the warnings because Jolina had left the responsibility of the Philippine Meteorological Authority and the direction of China was drawn. Later that day the JTWC classified on the basis of infrared images the system to a tropical storm up, the eighth as counted by the JTWC. The JMA downgraded the system a day later a tropical storm up and forgave the name Goni. With the landfall in Macau, the system moved on August 4 at 17:00 clock the second time over land. On August 7, the JTWC noted that the remnant low of Tropical Storm Goni had arrived in the Gulf of Tonkin. The system intensified by the criteria of the JTWC again to a tropical storm and moved in a southerly direction, but lost a few hours later in intensity, so that the JTWC spent his last warning.

In the Philippines, died from the effects of the tropical storm Goni at least 12 people, 221 412 people in 281 villages in 13 provinces were directly affected by the effects of the storm. The damage to property was estimated at Php 131.3 million Philippine pesos, of which 24.6 million in agriculture and 106.7 million on the infrastructure. In China, the storm killed five people. In Hainan Province, the authorities had to evacuate 92,000 people. 575 houses were destroyed and 2311 damaged. More than 68,000 hectares of farmland were flooded.

Typhoon Morakot ( Kiko )

On August 2, the JMA noted that in a monsoon trough about 1000 km has formed the eleventh tropical depression of the season östlichd the Philippines. The depression remained weak and during the day it was first downgraded from the JMA to an area with convective activity, some hours later, the JMA determined that the depression had regenerated and that the deep convection flared up on the western side of a partially exempt circulation center. On August 3, the system came under the responsibility of PAGASA, which assigned the name Kiko. A few hours later, the Regional Specialized Meteorological Centre, the system for tropical storm and named it rated highly with the international name Morakot. The JTWC led Morakot than 09W.

Tropical Storm Etau

On August 6, to an area with convective clouds in the monsoon trough was located about 1000 km south-west of Iwo To, Japan. Satellite images showed a TUTT northeast of the system, which was also under the influence of strong vertical wind shear and was in a favorable environment. Late on August 7, sparked the JTWC Tropical Cyclone Forming an alert and the JMA classified the system on 8 August as a tropical depression. The system intensified further into a tropical storm and was named Etau.

In the reanalysis, the JMA downgraded from Etau to a tropical storm with ten-minute sustained wind speeds of 75 km / h.

Tropical Depression Maka

On August 13, the remnant low of Tropical storm Maka crossed the International Date Line and thus enters the Western Pacific; the JMA classified the system as a tropical depression immediately. During the day the JTWC noted that the system is about 1425 km south-east of Wake was formed and in the northern quadrant of a long-drawn ground-level circulation center convection. The system was located in an area with mild to moderate wind shear and the effluent in an upper level trough was well developed. The next day the JTWC saw the possibility that the formation of a tropical storm at any time was possible because the circulation center had evolved Later did day, the JTWC upgraded the disturbance to re - Tropical Depression 01C ( Maka ). and the next day the JTWC downgraded the low pressure area to a tropical storm temporarily high. However, the system could not evolve and lost power while it slowly drifted westward. On August 17, the JMA noted that the system had dissolved.

Typhoon Vamco

On 14 August, formed an area of ​​convective monsoon clouds, about 750 kilometers northeast of Pohnpei. Satellite images showed that ruled between the northeast and southwest by the ground-level circulation center Konvektionsbänder. Furthermore, the system was subject to only slight wind shear and in the northeastern quadrant exists easier poleward outflow directed into a tropical trough in the upper troposphere. On the afternoon of 16 August, the JMA classified the system as a tropical depression and a day later to Tropical Storm Vamco. On 18 August, Vamco intensified into a severe tropical storm and in the morning of August 19, the RSMC Vamco highly classified to a minimal typhoon. Six hours later, a small eye was visible on satellite images, and Vamco had intensified into a typhoon, which had a magnitude equivalent to Category 2 on the Saffir -Simpson Hurricane Scale. Early on August 22 Vamco reached its climax as typhoon equivalent to a Category 4 hurricane. To the 25th August Vamco approached the south-western Aleutian Islands and rapidly lost its tropical characteristics. The storm developed features of a frontal system and the eye quickly became less pronounced, so that the JTWC and a few hours later, the JMA issues its final warnings to the weakening storm. Vamco remained far from land and so no damages were reported.

Tropical depression of 20 August

Early on August 20, the JMA reported that has claimed about 720 km southeast of Okinawa, Japan, a tropical depression. The JTWC noted during the day that the system has a wide ground-level circulation center with weak convection and that the conditions were favorable for further development, as the temperature of the water surface is high and the vertical wind shear was low. The JMA was, however, the next day the last warning to the system from which it had downgraded to a low pressure area. It broke away early on August 22 finally.

Tropical Depression from August 25

In the early hours of August 25 the JTWC noticed a Konvektionszentrum about 1000 km to the southeast of Okinawa, Japan. The convection moved here over a wide and ill-defined ground-level circulation center, the vertical wind shear was low. An upper level trough approached the system from the northwest and disabled the outflow; He also brought cooler and drier air in the vicinity of the fault. During the day the JMA classified the system as a tropical depression. The JTWC reported early the next morning that the depression has resolved. The JMA continued to storm warnings initially continued and was only later on August 26, the last warning to the system.

Severe Tropical Storm Krovanh

Tropical Depression 02C

Severe Tropical Storm Dujuan ( Labuyo )

Tropical depression of 3 September

Tropical Storm Mujigae ( Maring )

Typhoon Koppu ( Nando )

Typhoon Choi -wan

Typhoon Choi -wan was formed in the early morning of the 11th September 2009 as a weak tropical disturbance, about 1100 kilometers east of Guam. On that day the disturbance rapidly developed and was classified by both the JMA and the JTWC through the next day as a tropical depression. The intensification continued, and on September 12 the JMA gave the meantime a tropical storm grown system the name Choi -wan. As of September 13 slowed the rapid intensification and Choi -wan reached just as the strength of a severe tropical storm, the next day before the rapid intensification began again, so Choi -wan was incremented to the typhoon. During the day the typhoon gained so much strength that it corresponded to the category 4 on the Saffir -Simpson Hurricane Scale. Choi -wan strengthened then during the September 15 next, according to the data of the JMA was the ten-minute peak wind speed 195 km / h, the Joint Typhoon Warning Center reported the high point of the Category 5 typhoon with one-minute wind speeds of 260 km / h

Due to an excellent poleward directed outflow and high surface temperatures Choi -wan remained at the stage of its peak intensity until the early hours of September 17, as to ease the deep convection in the northwestern quadrant started because of the tropical upper level trough ( TUTT ) in a northwesterly direction no longer a good discharge caused. Choi -wan was therefore downgraded from JTWC, during the typhoon passed through a cyclic - eyewall formation. With one-minute peak wind speeds of 150 km / h Choi -wan reached a secondary peak on September 18. On September 19, Choi -wan rapidly lost intensity, because of the typhoon arrived in an unfavorable environment in which much stronger wind shear began to erode the deep convection of the typhoon. As a result, and due to the fact that now drier air was led into the circulation center, the JTWC decided to grade Choi -wan to an extratropical cyclone and were up early the next day, the last warning to the storm out. The JMA followed this step the day.

Although the intensity Choi -wan was very high during the passage through the Northern Mariana Islands, no personal injuries were reported. It was later determined by the U.S. Navy, as the entire island Alamagan was uninhabitable because with the exception of a laboratory and research building, all buildings were completely destroyed and most of the trees on the island had not withstood the force of the typhoon. As a result came the decision that all residents Alamagans and Agrihans were brought to Saipan.

Tropical Depression 23 September

Typhoon Ketsana ( Ondoy )

Tropical Depression 18W

On 26 September, an area formed about 200 km northeast of Fananu convective clouds. Satellite images showed that a ground-level circulation center was partially exempted, and a TUTT cared for discharge to the northwest. On the morning of the next day the system is organized better due to a favorable environment so that the JMA classified the system as a tropical depression. The JTWC presented on September 28, intensify into a tropical storm by the criteria of JTWCs fixed, but the JMA concluded on 29 September from an intensification because the system got one hand in the effect of intensifying typhoon Parma and on the other hand its tropical characteristics lost. At noon of the 30th September, we moved the system across the Andersen Air Force Base, as moderating a tropical depression. The JTWC on the evening of September 30 last warning to 18W Accordingly spent and the JMA said that the system had dissolved. The remains were then absorbed by Typhoon Parma, so that it became even more added strength.

Typhoon Parma ( Pepeng )

Typhoon Melor ( Quedan )

On September 28, was formed about 370 km northeast of Pohnpei a convective cloud area. Satellite images showed that had begun to form a ground-level Zirkualtionszentrum. On the evening of 28 September saw a tropical upper level trough for good discharge and the vertical wind shear was favorable, so that the JTWC Tropical Cyclone Formation Alert triggered one. Both JMA and JTWC classified the system on September 29 as a tropical depression. In the early morning of September 30 the JMA noted that the system had intensified into a tropical storm and assigned the international name Melor. Until 1 October, Melor intensified initially for severe tropical storm and eventually into a typhoon. The intensification continued rapidly and in the afternoon of the same day the JTWC reported that Melor have reached the strength equivalent to Category 3 of Saffir -Simpson Hurricane Scale. The typhoon continued to intensify and wandered to the northeast of Luzon. Early in the morning of October 2 which reached Category 4, on which he remained first in order to reinforce one day later again until he had intensified as specified by the JTWCs on October 4 to a Category 5 super typhoon appropriate. The JMA determined the lowest air pressure in the center of the typhoon with 910 hPa and the ongoing ten-minute wind speeds of 205 km / h On October 5, PAGASA had the typhoon to local Quedan, since this is the Philippines approached. Because Typhoon Parma blocked the way to the west, the typhoon, however, turned to the north, and at noon on 8 October moved Melor in Japan over the country. After landfall, the JMA downgraded from Typhoon Melor to a severe tropical storm, while the JTWC already classified the system as extratropical storm.

The remnants of Typhoon Melor were absorbed late on October 9 by a newly developed area of ​​low pressure. This crossed the Pacific Ocean and reached the coast of California. The system resulted in the San Francisco Bay Area to heavy rain and wind gusts of 124 km / h on Angel Iceland. The damage in California were estimated by the insurance companies to 1.5 billion U.S. dollars.

Tropical Storm Nepartak

On October 6, formed in conjunction with a monsoon trough a field with convective clouds, about 500 km south-west of Saipan. Satellite images showed a konsolifierendes to ground-level circulation center with Konvektionsbändern and deeper convection in the northern semicircle. On the morning of October 8, the system began to pull to the north - northwest, and due to favorable conditions, the circulation center quickly became better defined, so that the JMA classified the system as a tropical depression. On October 9, the JMA downgraded the system to a tropical storm up and forgave the name Nepartak. In the following hours, the storm intensified to its peak intensity with ten-minute sustained wind speeds of 85 km / h On October 14, the storm had terminated, however, because he was torn in two from the polar jet stream.

Typhoon Lupit ( Ramil )

Early on October 13, the JTWC reported that about 380 nautical miles northwest of Kwajalein a convection area has formed. The convection was still poorly organized, but began to consolidate a vast ground-level circulation. The vertical wind shear was low and the water surface temperature was beneficial to the further development. The disorder developed rapidly, so that the JMA on the morning of October 14 took up the issue of storm warnings, and the JTWC assumed that there is already a weak tropical storm had formed. The system walked the next few days further into west-northwest direction. It has been classified by the JMA on 15 October to a tropical storm and was named Lupit. On October 16, the JTWC noted that Lupit had intensified into a typhoon; the JMA downgraded Lupit until several hours later when a typhoon, about the same time, as PAGASA Typhoon Ramil zuwies the local name because the typhoon had reached the responsibility of the Philippine meteorologists. The next two days waved the typhoon first northward and then moved to the northeast, before returning to its original west- northwesterly direction of pull. During this time intensified Lupit due to favorable conditions and high water temperatures, reaching on 17 October after a rapid intensification of an intensity equivalent to Category 3 on the Saffir -Simpson Hurricane Scale as well as on the morning of October 18, even the category 4 Lupit reached its greatest strength with sustained winds of 95 knots. On October 20, the strength of the typhoon rapidly declined. Although the typhoon threatened again Luzon and it has been predicted for some time that the typhoon would roam the far north of the island, the forward speed of the hurricane took off, however. Dry air and unfavorable conditions had further added to the storm, so he was graduated on 24 October by the JMA to a severe tropical. approached the northeastern tip of Luzon, but was then detected by a control flow that it was the storm in a northeasterly direction quickly. JTWC and PAGASA spent their last warnings because Lupits transition to an extratropical storm began; However, the JMA put their warnings continue until October 27.

Tropical Depression 16 October

Late on October 15, the JTWC reported the formation of a low pressure area about 780 km southeast of Hue, Vietnam., Which soon trained convection and a ground-level circulation center. The system was moving in a zone with favorable conditions for further development, with low vertical wind shear and warm water temperatures. The next morning the JMA classified the system as a tropical. The circulation center was released at the time due to strong vertical wind shear. However, the low pressure area remained weak and could not evolve. It dissipated on October 20.

Mirinae typhoon ( Santi )

Tropical Depression 24W (Tino )

Tropical Depression 25W

Early in the morning of November 3, the JTWC reported that in the Mohnsunnrinne about 440 nautical miles southeast of Pohnpei was a convection area. The convection was poorly organized and was surrounded by a weak, rolled- circulation at mid-height. However, the environmental conditions were not favorable for further development, as in the field, there was moderate vertical wind shear. During the next days the disturbance slowly developed a ground-level circulation center and both JMA and JTWC classified the system on November 7 as a tropical depression. The system moved slowly eastward. It was upgraded by the JTWC for a short time to a tropical storm, but this intensity could not be maintained. The JMA not classified the system as a tropical storm. Without having the country at risk, the system broke up on November 10.

Tropical Depression 27W ( Urduja )

Typhoon Nida ( Vinta )

Tropical Depression 24 November

Tropical Depression 28W

Tropical Depression 7 December

Late on 7 December, the JTWC reported that about 965 km southeast of Manila a convection area has formed around a rapidly developing ground-level circulation center. The ground-level circulation center had rapidly formed from the southwestern foothills of Scherungsfront. The JTWC was assumed that the formation of a tropical system was carried out immediately, the Japan Meteorological Agency announced the formation of a tropical low pressure area a day later. The JMA was some hours later from the last warning to the system and the JTWC recanted the TCFA, because the system was pulled over Mindanao and had dissolved over the country.

Storm names

Tropical cyclones in the western North Pacific are named by the RSMC Tokyo - Typhoon Center of the Japan Meteorological Agency. The names are taken from the following list. This is used continuously, so there is no changing annual lists of names as in the eastern North Pacific or the Atlantic. The names were proposed by 13 members of the ESCAP / WMO Typhoon Committee. Each of these members - with the exception of Singapore - has submitted ten names suggestions that come in alphabetical order of the English names of the members on the application. The first name that was used in the 2009 season, Kujira was. Not assigned names are shown in gray.

Philippines

The Philippine Atmospheric, Geophysical and Astronomical Services Administration ( PAGASA ) uses its own naming scheme for tropical system in their area of ​​responsibility. The lists of names of PAGASA be used every four years.

• Auring
• Bising
• Crising
• Dante ( 0901)
• Emong ( 0902 )
• Feria ( 0904 )
• Gorio ( 0905 )

• Huaning
• Isang ( 0906 )
• Jolina ( 0907 )
• Kiko ( 0908 )
• Labuyo ( 0912 )
• Maring ( 0913 )
• Nando ( 0915 )

• Ondoy ( 0916 )
• Pepeng ( 0917 )
• Quedan ( 0918 )
• Ramil ( 0920 )
• Santi ( 0921 )
• Tino
• Urduja

• Vinta ( 0922 )
• Wilma ( unused )
• Yolanda ( unused )
• Zoraida ( unused )
• Alamid ( unused )
• Bruno ( unused )
• Conching ( unused )

• Dolor ( unused )
• Ernie ( unused )
• Florante ( unused )
• Gerardo ( unused )
• Hernan ( unused )
• Isko ( unused )
• Jerome ( unused )

Course of the season