Tropical Storm Washi - wikipedia Tropical Storm Washi This article is about the 2011 tropical storm. For the 2005 tropical storm, see Tropical Storm Washi ( 2005 ). Severe Tropical Storm Washi ( Sendong ) Severe tropical storm ( JMA scale ) Tropical storm ( SSHWS ) Severe Tropical Storm Washi approaching Mindanao on December 16 Formed December 13, 2011 Dissipated December 19, 2011 Highest winds 10 - minute sustained : 95 km / h ( 60 mph ) 1 - minute sustained : 95 km / h ( 60 mph ) Lowest pressure 992 hPa ( mbar ) ; 29.29 inHg Fatalities 2,546 total Damage $97.8 million ( 2011 USD ) Areas affected Micronesia, Palau, Philippines Part of the 2011 Pacific typhoon season Severe Tropical Storm Washi, known in the Philippines as Tropical Storm Sendong, was a late - season tropical cyclone that caused catastrophic damage in the Philippines in late 2011. Washi, which means Aquila in Japanese, made landfall over Mindanao, a major island in the Philippines, on December 16. Washi weakened slightly after passing Mindanao, but regained strength in the Sulu Sea, and made landfall again over Palawan on December 17. Contents 1 Meteorological history 2 Impact 3 Aftermath 4 International aid and assistance 5 Retirement 6 See also 7 References 8 External links Meteorological history Map plotting the track and the intensity of the storm, according to the Saffir -- Simpson scale On December 12, the Joint Typhoon Warning Center ( JTWC ) noted that a developing area of low pressure had persisted about 945 km ( 585 mi ) south - southeast of Guam. Situated along the southern edge of a subtropical ridge, the system tracked steadily westward towards the Philippines. Located within a region of good diffluence and moderate wind shear, deep convection was able to maintain itself over the circulation. Development of banding features and improvement of outflow indicated strengthening was likely. Further development over the following day prompted the JTWC to issue a Tropical Cyclone Formation Alert early on December 13. Less than six hours later, both the JTWC and the Japan Meteorological Agency ( JMA ) classified the system as a tropical depression, with the former assigning the identifier 27W. Maintaining a westward track, the depression was forecast to intensify slowly over the following three days. For much of December 13, a slight increase in shear displaced thunderstorm activity from the center of the depression, delaying intensification. By December 14, convection redeveloped over the low and the JTWC subsequently assessed the system to have attained tropical storm status. Early on December 15, the system crossed west of 135 ° E and entered the Philippine Atmospheric, Geophysical and Astronomical Services Administration 's ( PAGASA ) area of responsibility. Upon doing so, PAGASA began issuing advisories and assigned the cyclone with the local name Sendong. Shortly thereafter, the storm passed close to or over Palau. By 0600 UTC, the JMA upgraded the system to tropical storm status, at which time they assigned it with the name Washi. Maintaining a rapid westward track, Washi slowly became more organized, with low - level inflow improving during the latter part of December 15. On December 16, Washi reached its peak strength as a severe tropical storm and made its first landfall along the east coast of Mindanao. After passing Mindanao, Washi weakened due to land interaction, but the storm quickly regained its strength, in the Sulu Sea. Late on December 17, Washi crossed Palawan and arrived in the South China Sea, and the system moved out of the PAR on December 18. Washi weakened to a tropical depression and dissipated on December 19, because of cool, dry air, in association with the Northeast Monsoon. Impact Tropical Storm Washi in the Sulu Sea on December 17 Across the Cagayan de Oro river basin, a localized heavy rain event occurred during Tropical Storm Washi 's passage. Onshore flow from the Macajalar Bay, which the Cagayan de Oro river drains into, ran into the steep terrain of Mount Makaturing, Mount Kalatungan, and Mount Kitanglad, resulting in orographic enhancement of precipitation. A weather station in Capehan located along the Bubunawan river, a tributary of the Cagayan de Oro river, recorded 475 mm ( 18.7 in ) over a 24 ‐ hour span. The rainfall event itself amounted to a 1 - in - 20 year event for much of Misamis Oriental. In the span of 24 hours, 180.9 mm ( 7.12 in ) of rain fell at Lumbia which equates to more than 60 percent of their average December precipitation. Estimates from the Tropical Rainfall Measuring Mission jointly run by NASA and JAXA indicated that accumulations around the Cagayan de Oro river exceeded 400 mm ( 16 in ). Observations from Talakag captured the sheer intensity of rainfall associated with Washi, with hourly accumulations peaking at 60.6 mm ( 2.39 in ). Similar amounts, though less anomalous in magnitude, fell farther east on Mindanao. Satellite estimates indicated accumulations of 200 to 250 mm ( 7.9 to 9.8 in ) along coastal areas near where Washi made landfall. A total of 180.4 mm ( 7.10 in ) was observed in Hinatuan. Satellite estimated rainfall from Severe Tropical Storm Washi over the Philippines. The areas in red indicate where more than 400 mm ( 16 in ) of rain may have fallen. Starting in tributaries and later reaching the main Cagayan de Oro, Iponan, and Mandulog rivers, flash flooding manifested at a dramatic pace. In some locations, flood waters rose by 3.3 m ( 11 ft ) in less than an hour. Alongside the effects from rainfall, high tide at Macajalar Bay further enhanced the flood event and allowed water to inundate areas that would have otherwise safe at low tide. The rivers crested at 7 to 9 m ( 23 to 30 ft ), amounting to a 75 - year flood event in some areas, with catastrophic results. This was also far higher than the previous flood event following Tropical Depression Auring in January 2009. Located outside the main `` typhoon belt, '' residents in the affected areas suffered from a false sense of security with tropical cyclone related disasters. Flooding from the rivers struck at approximately 2 : 30 a.m. local time, when most people were asleep and unable to hear warnings from PAGASA. Hardest hit were the cities of Cagayan de Oro and Iligan where tremendous loss of life occurred. Within Cagayan de Oro, the barangay of Macasandig was virtually wiped out. Between the two cities, 1,147 people lost their lives while a further 1,993 sustained injury. Residents affected by these flood waters were forced to seek refuge on their roofs amidst 90 km / h ( 55 mph ) winds. The mayor of Iligan regarded the floods as the worst in the city 's history. Throughout the affected areas, nearly 40,000 homes were damaged of which 11,463 were destroyed. Nearly 700,000 people were affected by the storm. Total casualties attributed to the event are uncertain, with the National Disaster Risk Reduction and Management Council 's final report in February 2012 stating 1,268 fatalities, 181 people missing, and 6,071 injuries. A later report by the World Meteorological Organization in December of that year indicated 1,292 deaths, 1,049 missing, and 2,002 injured. The International Federation of Red Cross and Red Crescent Societies stated a total of 2,546 deaths in their final report on August 21, 2013. Damage directly related to the storm amounted to ₱ 2.068 billion ( 2012 PhP, $48.4 million USD ). Over half of the damage was due to damaged roads and bridges. Total socio - economic losses amounted to US $97.8 million. Aftermath Mindanao following the aftermath of Tropical Storm Washi Flooding from Tropical Storm Washi A massive relief operation involving the evacuation of 100,000 people occurred on the morning of December 17, 2011. Approximately 20,000 soldiers were mobilized to assist in recovery efforts and evacuations. The Philippine Coast Guard was dispatched to search for missing people after villages were reported to have been swept out to sea. Sixty people were rescued off the coast of El Salvador, Misamis Oriental and another 120 in the waters near Opol township. President Benigno Aquino III visited Cagayan de Oro and Iligan on December 20, 2011, and declared a state of national calamity in the affected provinces. The President also appealed to its citizens to help the victims in their way of celebrating Christmas in his Christmas Message. A leptospirosis outbreak in the immediate aftermath infected more than 400 people and killed 22. Additional fatalities from suicide took place in evacuation centers, though exact numbers are unknown. In the three years following Washi, ₱ 2.57 billion ( US $58 million ) was allocated to build 30,438 shelters, designed to withstand winds of 220 km / h ( 140 mph ), in eight regions. Less than half of this total had been built by December 2014, though construction in Cagayan De Oro and Iligan was largely complete. International aid and assistance Overseas humanitarian aid is pouring in for victims of Severe Tropical Storm Sendong ( Washi ) in Northern Mindanao, in the Philippines. Australia The Australian government provided A $1 million ( $1.01 million USD ) in financial aid. Denmark The Danish government provided 300,000 DKK ( $53,000 USD ) in emergency funds for relief items such as food, water, sanitation materials, mattresses and blankets. European Union The European Commission allocated € 3 million ( $3.9 million ) to provide emergency relief to tens of thousands of people affected by the storm. France The French Government provided € 50,000 ( $65,000 USD ) in emergency funds. Indonesia The Government of Indonesia provided $50,000 in financial aid and offered to send search and rescue teams and medical teams. Japan The Japanese government provided 25 million yen ( $320,000 USD ) worth of relief goods, such as water tanks and generators, for victims of the storm. Malaysia The Government of Malaysia provided $100,000 in financial assistance for relief and rehabilitation. People 's Republic of China The Chinese government provided $1.1 million in financial aid. Singapore The Government of Singapore provided S $50,000 ( $39,000 USD ) in funds and S $27,800 ( $22,000 USD ) worth of relief goods. South Korea The Government of South Korea provided $500,000 in financial aid. Switzerland Six members of the Swiss Humanitarian Aid Unit were sent to Mindanao to ensure access to clean drinking water. United Kingdom The British Red Cross provided £ 140,000 ( $220,000 USD ) in funds to support relief efforts. United Nations On December 21, the United Nations Emergency Relief Agency released $3 million in funds to improve water and sanitation. On December 22, the United Nations Department of Humanitarian Affairs announced a plan to raise $26.8 million in aid for victims of Severe Tropical Storm Washi. United Nations Secretary - General Ban Ki - moon sympathized with the Philippine Government and stated `` the ( United Nations ) would extend whatever help is needed by those who were affected by the disaster. '' The United Nations High Commissioner for Refugees also pledged to send 42 metric tons of aid to the country. The United Nations Children 's Fund also appealed for $4.2 million to be sent to the Philippines. United States The United States provided $100,000 in funds to support relief efforts. The country 's ambassador, Harry K. Thomas Jr., expressed his `` heartfelt condolences and sympathies '' to those affected by the storm. Immediate assistance was to be provided by the United States Agency for International Development 's Office of Foreign Disaster Assistance. Non-food items such as hygiene kits, water purification tablets, and containers were to be sent to the Philippines. Retirement Due to its high death toll, PAGASA announced that the name, Sendong, would be stricken off their tropical cyclone naming lists. In February 2012, the ESCAP / WMO Typhoon Committee announced that Washi will also be retired on its naming lists and was replaced with the name Hato. In June 2012, PAGASA selected the name Sarah to replace Sendong for the 2015 season. However, due to fewer tropical cyclones entering the area that season, it is now next scheduled to be used in the 2019 season. See also Tropical cyclones portal Typhoon Tembin ( 2017 ) 2011 Southeast Asian floods Other Philippine tropical cyclones that have claimed more than 1,000 lives Typhoon Bopha ( Pablo, 2012 ) Typhoon Fengshen ( Frank, 2008 ) Typhoon Durian ( Reming, 2006 ) Tropical Depression Winnie, 2004 Tropical Storm Thelma ( Uring, 1991 ) Typhoon Haiyan ( Yolanda, 2013 ), deadliest tropical cyclone to strike the Philippines in recent recorded history Other significant Philippine tropical cyclones Typhoon Angela ( Rosing, 1995 ) Typhoon Ketsana ( Ondoy, 2009 ) References Jump up ^ `` Significant Tropical Weather Outlook for the Western and South Pacific Oceans ''. Joint Typhoon Warning Center. United States Navy. December 12, 2011. Archived from the original on December 13, 2011. Retrieved December 23, 2011. CS1 maint : Unfit url ( link ) Jump up ^ `` Tropical Cyclone Formation Alert ''. Joint Typhoon Warning Center. United States Navy. December 13, 2011. Archived from the original on December 13, 2011. Retrieved December 23, 2011. CS1 maint : Unfit url ( link ) Jump up ^ `` High Seas Forecast ''. Japan Meteorological Agency. December 13, 2011. Archived from the original on December 13, 2011. Retrieved December 23, 2011. CS1 maint : Unfit url ( link ) Jump up ^ `` Tropical Depression 27W Advisory Number 001 ''. Joint Typhoon Warning Center. United States Navy. December 13, 2011. Archived from the original on December 13, 2011. Retrieved December 23, 2011. CS1 maint : Unfit url ( link ) Jump up ^ `` Tropical Storm 27W Advisory Number 005 ''. Joint Typhoon Warning Center. United States Navy. December 14, 2011. Archived from the original on December 14, 2011. Retrieved December 23, 2011. CS1 maint : Unfit url ( link ) Jump up ^ `` Tropical Depression Sendong Advisory One ''. Philippine Atmospheric, Geophysical and Astronomical Services Administration. December 15, 2011. Archived from the original on December 15, 2011. Retrieved December 24, 2011. CS1 maint : Unfit url ( link ) Jump up ^ `` Tropical Depression 27W Advisory Number 008 ''. Joint Typhoon Warning Center. United States Navy. December 15, 2011. Archived from the original on December 15, 2011. Retrieved December 24, 2011. CS1 maint : Unfit url ( link ) Jump up ^ `` Tropical Storm Washi Tropical Cyclone Advisory ''. Japan Meteorological Agency. December 15, 2011. Archived from the original on December 15, 2011. Retrieved December 24, 2011. CS1 maint : Unfit url ( link ) Jump up ^ `` Tropical Storm 27W ( Washi ) Advisory Number 011 ''. Joint Typhoon Warning Center. United States Navy. December 15, 2011. Archived from the original on December 16, 2011. Retrieved December 24, 2011. CS1 maint : Unfit url ( link ) ^ Jump up to : Final Report on the Effects and Emergency Management re Tropical Storm `` Sendong '' ( Washi ) ( PDF ) ( Report ). National Disaster Risk Reduction and Management Council. February 10, 2012. Retrieved May 1, 2015. ^ Jump up to : Olavo Rasquinho ; Jae Hyun Shim ; Yun Tae Kim ; Jae Chan Ahn ; Chi Hun Lee ; In Sung Jung ; Gmma Dalena ; Preminda Joseph Fernando ; Susan R. Espinueva ; Socrates F. Paat Jr. ; Nivagine Nievares & Tess Pajarillo ( December 2012 ). Assessment Report of the Damages Caused by Tropical Storm Washi ( PDF ) ( Report ). ESCAP / WMO Typhoon Committee. ISBN 978 - 99965 - 817 - 6 - 2. Retrieved May 1, 2015. Jump up ^ Initial Assessment of the Development of Tropical Storm Sendong ( Washi ) over the Philippines ( PDF ) ( Report ). DHI Water & Environment. December 2011. Retrieved May 1, 2015. ^ Jump up to : Rob Gutro ; Steve Lang ; Zhong Liu & Hal Pierce ( December 21, 2011 ). `` Hurricane Season 2011 : Tropical Storm Washi ( Western North Pacific Ocean ) ''. NASA. Retrieved May 1, 2015. Jump up ^ `` Storm - triggered floods ravage southern Philippines, kill at least 436 ''. Associated Press. The Washington Post. December 17, 2011. Retrieved December 17, 2011. ^ Jump up to : `` Hundreds die as tropical storm Washi sweeps across Philippines ''. Associated Press. The Telegraph. December 17, 2011. Retrieved December 17, 2011. Jump up ^ Emergency appeal final report - Philippines : Tropical Storm Washi ( PDF ) ( Report ). International Federation of Red Cross and Red Crescent Societies. August 21, 2013. Retrieved May 1, 2015. Jump up ^ Padua, David M ( 2011 ). `` Tropical Cyclone Logs : Sendong ( Washi ) 2011 ''. Typhoon 2000. Retrieved December 31, 2011. Jump up ^ Ramos, Benito T. Final Report on the Effects and Emergency Management re Tropical Storm `` Sendong '' ( Washi ) ( PDF ) ( Report ). National Disaster Risk Reduction and Management Center. Archived from the original ( PDF ) on February 24, 2012. Retrieved February 24, 2012. Jump up ^ `` Storms pound Philippines in the thick of night, kill at least 436 ''. MSNBC. December 17, 2011. Retrieved December 17, 2011. Jump up ^ Sun. Star : Aquino declares state of national calamity Jump up ^ `` PNoy airs Christmas aid call for Sendong victims ''. Foreign aid pours in for disaster victims. abs-cbnNEWS.com. Retrieved 26 December 2011. Jump up ^ `` More than 12,700 shelter units built for survivors of ' Sendong ' despite challenges ''. Government of the Philippines. ReliefWeb. December 29, 2014. Retrieved April 23, 2015. ^ Jump up to : Noemi M. Gonzales & Johanna Paola D. Poblete ( December 22, 2011 ). `` UN issues $28.6 - million international appeal for victims ''. Business World Online. Retrieved December 23, 2011. Jump up ^ `` Denmark sends emergency aid to disaster areas in the Philippines ''. ScandAsia. December 23, 2011. Retrieved December 23, 2011. Jump up ^ `` EC mobilizes funds to help ' Sendong ' victims ''. Inquirer. December 23, 2011. Retrieved December 23, 2011. ^ Jump up to : Roy C. Mabasa ( December 22, 2011 ). `` UN launches revised aid program ''. Manila Bulletin. Retrieved December 23, 2011. Jump up ^ `` Switzerland sends experts to the Philippine disaster area ''. Government of Switzerland. ReliefWeb. December 22, 2011. Retrieved December 23, 2011. Jump up ^ `` British Red Cross sends funds to support typhoon stricken Philippines ''. British Red Cross. ReliefWeb. December 22, 2011. Retrieved December 23, 2011. Jump up ^ `` $4.2 million UNICEF appeal for Philippine flood victims ''. Agence France - Presse. Inquirer. December 20, 2011. Retrieved December 23, 2011. Jump up ^ `` U.S. provides aid to support Tropical Storm Sendong relief efforts ''. United States Department of State. ReliefWeb. December 22, 2011. Retrieved December 23, 2011. Jump up ^ `` Government will no longer use Sendong to name typhoons ''. Sun Star Manilla. 2011 - 12 - 23. Retrieved 2011 - 12 - 26. Jump up ^ `` Forty - Fourth Session of Typhoon Committee '' ( PDF ). Typhoon Committee. February 2012. Retrieved 2012 - 02 - 28. External links Wikimedia Commons has media related to Tropical Storm Washi. JMA General Information of Severe Tropical Storm Washi ( 1121 ) from Digital Typhoon RSMC Tokyo - Typhoon Center Best Track Data of Severe Tropical Storm Washi ( 1121 ) ( in Japanese ) Best Track Data ( Graphics ) of Severe Tropical Storm Washi ( 1121 ) Best Track Data ( Text ) JTWC Best Track Data of Tropical Storm 27W ( Washi ) 27W. WASHI from the U.S. Naval Research Laboratory Retired Pacific typhoon names Pre 2000 's Lucille ( 1960 ), Ophelia ( 1960 ), Karen ( 1962 ), Bess ( 1974 ), Bess ( 1982 ), Ike ( 1984 ), Roy ( 1988 ), Mike ( 1990 ), Mireille ( 1991 ), Thelma ( 1991 ), Omar ( 1992 ) 2000s 2001 : Vamei 2002 : Chataan, Rusa, Pongsona 2003 : Yanyan, Imbudo, Maemi 2004 : Sudal, Tingting, Rananim 2005 : Matsa, Nabi, Longwang 2006 : Chanchu, Bilis, Saomai, Xangsane, Durian 2009 : Morakot, Ketsana, Parma 2010s 2010 : Fanapi 2011 : Washi 2012 : Vicente, Bopha 2013 : Sonamu, Utor, Fitow, Haiyan 2014 : Rammasun 2015 : Soudelor, Mujigae, Koppu, Melor 2016 : Meranti, Sarika, Haima, Nock - ten 2017 : Hato, Kai - tak, Tembin Typhoon names retired by the Philippine Atmospheric, Geophysical and Astronomical Services Administration 1960s Dading Welming 1970s Pitang Sening Titang Yoling Wening Didang Atang Kading 1980s Nitang Undang Sisang Herming Unsang Yoning 1990s Ruping Uring Rosing Iliang Loleng 2000s Gloria Harurot Unding Violeta Winnie Milenyo Reming Cosme Frank Ondoy Pepeng 2010s Juan Katring Bebeng Juaning Mina Pedring Sendong Pablo Labuyo Santi Yolanda Glenda Jose Mario Ruby Seniang Lando Nona ( Nonoy ) Karen Lawin Nina Urduja Vinta Tropical cyclones of the 2011 Pacific typhoon season TD 01W TD Amang TS Aere TY Songda TD TD TS Sarika TD TD TS Haima STS Meari TD Goring TY Ma - on TS Tokage TD TD TD TD STS Nock - ten TY Muifa TD Lando STS Merbok TD TD TD 13W TD TD TD TD TY Nanmadol STS Talas TS Noru TS Kulap TY Roke TY Sonca TD TD TY Nesat TS Haitang TY Nalgae TS Banyan TD TD TD 24W TD 25W TD 26W STS Washi TD TD TD TD Book Portal Retrieved from `` https://en.wikipedia.org/w/index.php?title=Tropical_Storm_Washi&oldid=862560557 '' Categories : 2011 Pacific typhoon season Western Pacific severe tropical storms 2011 disasters in the Philippines 2011 in the Philippines Typhoons in the Philippines Mindanao Retired Pacific typhoons December 2011 events Hidden categories : CS1 maint : Unfit url Articles with Japanese - language external links Talk Contents About Wikipedia Français 한국어 Bahasa Indonesia Italiano Bahasa Melayu Română Русский Suomi ไทย Tiếng Việt 中文 4 more Edit links This page was last edited on 5 October 2018, at 05 : 18 ( UTC ). 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Question: when did sendong enter the philippine area of responsibility
Answer: Early on December 15