Typhoon Nalgae (2011)
||This article may require cleanup to meet Wikipedia's quality standards. (October 2011)|
|Typhoon (JMA scale)|
|Category 4 (Saffir–Simpson scale)|
|Formed||September 26, 2011|
|Dissipated||October 5, 2011|
|Highest winds||10-minute sustained: 175 km/h (110 mph)
1-minute sustained: 240 km/h (150 mph)
|Lowest pressure||935 mbar (hPa); 27.61 inHg|
|Areas affected||Philippines, China, Vietnam|
|Part of the 2011 Pacific typhoon season|
|This article is outdated. (October 2011)|
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.
On September 26, the Japan Meteorological Agency(JMA) started to monitor a weak tropical depression that had developed about 1,260 km (785 mi) to the northwest of Manila in the Philippines. During that day, while the depression moved towards the northwest its low level circulation centre rapidly consolidated in an area of favourable conditions for further development of the system. This prompted the Joint Typhoon Warning Center (JTWC) to issue a tropical cyclone formation alert on the system early the next day. However less than 3 hours later, the JTWC decided to issue advisories on the system designating it as Tropical Depression 22W, before the JMA reported that the depression had become a tropical storm and named it Nalgae.
The storm slowly drifted to the west and kept on intensifying gradually. On September 29, microwave imagery showed Nalgae developed an eyelike feature and well defined convective banding in all the quadrants. The system had a tiny radius of winds, though it was still strengthening significantly and was very well defined. On the evening of September 28, the JMA reported that Nalgae continued to intensify, as they upgraded it to a severe tropical storm with winds of over 55 knots (102 km/h; 63 mph). On that night, the PAGASA initiated advisories on Nalgae, giving it the local name Quiel, as it entered the Philippine Area of Responsibility (PAR).
On the morning of September 29, the JTWC reported that Nalgae developed a small microwave eye like feature and multiple convective bands wrapped tightly into the center. Using the Dvorak technique, the JTWC estimated the average 1-minute sustained wind speed of Nalgae to be at 65 knots (120 km/h; 75 mph). On that evening, the JMA further upgraded Nalgae to a typhoon. Nalgae continued to drift westwards at approximately 13 knots (24 km/h; 15 mph) and continued to intensify. On the night of September 29, Nalgae's outflow to the east got more enhanced and the outflow in all other directions remained radial. Nalgae was running west quite quickly because of a strong and a deep subtropical ridge located to the east of the system. The JTWC anticipated Nalgae to continually strengthen before it made landfall over Luzon, Philippines. Continuing on its quick westward run, Nalgae developed a tiny 5 nautical miles (9.3 km; 5.8 mi) eye with a small break in the eyewall around the eastern periphery, because of a slight vertical wind shear as estimated by the JTWC. There was deep convective banding extending approximately 120 nautical miles (220 km; 140 mi) from the center and the overall outflow remained good. based on Dvorak intensity estimates, the winds of Nalgae were then raised to 95 knots (176 km/h; 109 mph).
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. 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." As preparations were underway, the president of Philippines said that "More troops and equipment from the Army, Navy and Air Force, including helicopters, have been deployed to flooded areas in Central Luzon to search and rescue affected residents". He added that the "National Disaster Risk Reduction and Management Council has been taking all necessary precautions from early warning, pre-emptive evacuation to on-going relief and recovery operations amid the onslaught of Typhoon Pedring (Nesat) and the anticipated effects of Typhoon Quiel (Nalgae) over the weekend." The PAGASA hoisted public storm warning signal number 3 in Cagayan and Isabela 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 4 days after Typhoon 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 stronger than Nesat.
On October 3, the National Marine Environmental Forecasting Center of China upgraded the rainstorm alert for Typhoon Nalgae to the orange level, the second-highest alert level in the country's four-level rainstorm alert system, reporting that a number of tidal stations off the provinces of Hainan, Guangdong and Fujian would experience tides beyond the ordinary safety levels. The agency asked all the tourists heading to typhoon-hit provinces to remain flexible with their itineraries as several air and ship may be either cancelled or indefinitely delayed when the typhoon comes ashore. China's flood control authority also took action by sending three emergency teams to Hainan, Guangdong and Guangxi provinces in order to implement increased preventative measures against typhoon-based natural disasters after announcing a level IV emergency response to Nalgae. According to the agency, Nalgae, the third tropical cyclone to have affected the region in a short span of just 10 days, can bring about many problems, as strong winds and heavy rain had caused severe damage to some water projects in those regions and consumed large quantities of flood control materials. They said that when Nalgae approaches, it will be more difficult to organize disaster prevention work. Also, tourists were quickly moving into the southern coastal areas to enjoy the week-long public holiday.[clarification needed]
Nalgae, the second typhoon hit Philippines within one week made landfall along the coast of Dinapigue town in Isabela province. The PAGASA weather bureau chief Graciano Yumul said that "The ground is still supersaturated and it cannot absorb more water. This will just flow down to rivers and towns, and there is a big possibility that landslides, flash flooding and flooding could occur." The search and rescue operations for Typhoon Nesat were halted because of the fierce weather brought by Nalgae. The NOLCOM chief Major General Jessie Dellosa said "Our rescue operations are ongoing with the use of watercraft and rubber boats. We are also continuously coordinating with the local government units to rescue the affected residents in Calumpit and Hagonoy." The National Disaster Risk Reduction and Management Council director Benito Ramos said that thousands of rescue workers were deployed across Luzon and the island’s sparsely populated northeast coast was evacuated following the orders from the president Benigno Aquino III. Ramous said "We're implementing persuasive evacuation operations. If I have to handcuff people to remove them from their homes I could be charged with human rights violations." Nalgae was making a similar path across the saturated Luzon Island as Typhoon Nesat. The wind gusts brought by Nalgae toppled trees and blew away tin roofs of some houses in Isabela's provincial capital of Ilagan. Nalgae continued to worsen the flooding and destruction brought by Nesat. Nalgae was far more stronger than Nesat and plummeted the nation with more winds and rains. The governor of Isabela province, Faustino Dy said that "Hundreds of people in coastal areas had been evacuated as rain and strong cut power lines, uprooted trees and blocked roads with debris." He added that "Nalgae could cause floods on Luzon's central plains before passing through La Union province, a tobacco-growing area, and then heading off into the South China Sea." Also, the PAGASA announced that an estimated 10–18 mm per hour of rains were experienced in several areas across the nation filling up dams and causing river systems to swell. As the storm continued to move inland with strong winds, many structures including billboards, tarpaulins and wooden materials in the town of Cauayan were damaged. The barriers of the Isabela highway were also destroyed by the typhoon. The government responded quickly and cleared off all the debris on the highway and made it usable again. According to the National Disaster Risk Reduction and Management Council (NDDRMC), the onslaught of the typhoon resulted in the death of 1 person living in the Mountain Province, a landlocked province of the Philippines in the Cordillera Administrative Region in Luzon. It was reported that Sonny Marcos, a passenger on board a passenger van was buried alongside the Halsema Highway, the highest altitude highway in the Philippines that stretches from Baguio City to Bontoc, Mountain Province. Seeing the heavy rains and flooding caused by the typhoon, Graciano Yumul then said to the people of the nation, "You can look at all the scientific computations and we can really prove that the dam openings would only contribute a maximum of 5% to the floods we see now in Pampanga and Bulacan. The water came from the run-off from the mountains, due to rains dropped by Pedring."
The Malacañan Palace called on Filipinos, especially those in Metro Manila to help each other whose properties have been devastated during the twin-typhoons Nesat and Nalgae, The Deputy presidential spokesperson Abigail Valte said "Relief and rescue workers need boats that can maneuver in flooded areas in Central Luzon, and volunteers who can help repack relief goods of the Department of Social Welfare and Development. he DSWD is repacking relief goods at its warehouse near the Ninoy Aquino International Airport. If you want to volunteer your services, you can do so. As for the wealthier Filipinos who own rubber boats or speedboats and want to lend them to our authorities, they can get in touch with the local government officials concerned." Thousands of people were ordered to evacuate their homes after the second typhoon, Nalgae slammed into the eastern coast of central Luzon, ashore south of northeastern Palanan Bay in Isabela Province. Similar to the previous typhoon Nesat, Nalgae blew through Luzon very quickly. The typhoon took a similar path across areas on Luzon saturated by Typhoon Nesat, trapping thousands on rooftops and sent huge waves that breached a seawall in Manila Bay. Nalgae only took about six hours to blow through the Luzon island. Meanwhile, the heavy rains brought by the system soaked the Cordillera mountain range, and water cascading from the slopes was expected to further swell tributaries and rivers in the central Luzon plains before it finally drains out into the Manila Bay. Office of Civil Defense administrator Benito Ramos told "We are asking everyone still refusing to leave their homes to let authorities evacuate them. Water from the Cordilleras could reach the plains today and there is a possibility that there won’t be any more rooftops left to see if that catches up with water from Nesat that’s just now subsiding." As he claimed, there was a danger that the water could also run past the rooftops of every house leaving none alive. 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.
The province of Pampanga was badly affected - mainly due to the already prevailing floods from the previous typhoon Typhoon Nesat (Pedring). The floods continued till 5 October - much after the rains subsided. Boats were brought out to navigate the roads that had turned into rivers. The ground floor of most houses remained under water up to 4 days after Quiel passed.
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. The main problem with the evacuations was such that most of the victims refused to leave. The residents could do nothing but wade through the floodwaters, only to find the town hall completely submerged in water. In order to prevent being swept away by strong currents, most of them clung to ropes tied on lamp posts. Some people also carried improvised flotation devices such as empty water bottles etc. to stay afloat. The Social work secretary Corazon Soliman said that "tonnes of relief packs were being trucked to the affected areas with the help of the UN's food agency, but other areas remained cut off. The main challenge is reaching far-flung villages. We are working with the armed forces and police to reach whatever is possible by foot or by choppers." AirAsia, a Malaysian-based low-cost airline said that they would provide free aid to the victims of the twin typhoons in the Philippines. They announced that they would allocate special space in their cargo on its daily Manila bound flight. They also asked people who were interested to donate for the Flippinos could contact them at their email address, email@example.com. Jay Mijares, a spokesman for the nonprofit humanitarian group, World Vision said that "The immediate need is ready-to-eat food and water. Survivors have no means to cook food. We are seeing a mass exodus of people looking for food, there is no supply, and on top of that their livelihood is disrupted. They have money but there's just nothing to buy." According to the disaster council NDRRMC, "Over the course of the weekend, the storm forced the closure of a number of bridges and made a number of roads impassable in the cities of Calasiao and Dagupan on Luzon island."
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." Although floodwaters have begun to subside, thousands of families continued to stay in the evacuation centers as more than 43,000 houses were damaged by the typhoon Nesat alone. In the Pampanga province the typhoon breached several dikes or small channels developed for the flow of drain water. The destructive landslides brought by Nalgae cut off large portions of the Philippine highways isolating the town of Carranglan in Nueva Ecija. Also, after the water receded, most of the victims refused to leave their homes and head for the evacuation centers as they feared that their houses could be easily robbed in such a situation. They asked for food and relief materials to be delivered to their house instead. Mayor James de Jesus of the worst-hit Calumpit town located to the north of Manila said that "For now we need rescue teams with rubber boats. We need to distribute food and water to the families stranded by the floods. I cannot reach all of them personally." 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.
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|Wikimedia Commons has media related to Typhoon Nalgae (2011).|
- JMA General Information of Typhoon Nalgae (1119) from Digital Typhoon
- The JMA's Best Track Data on Typhoon Nalgae (1119) (Japanese)
- The JMA's RSMC Best Track Data (Graphics) on Typhoon Nalgae (1119)
- The JMA's RSMC Best Track Data (Text)
- The JTWC's Best Track Data on Super Typhoon 22W (Nalgae)
- 22W.NALGAE from the U.S. Naval Research Laboratory