Typhoon Doksuri (Maring)
Doksuri approaching Vietnam near peak intensity early on September 15
Meteorological history
FormedSeptember 10, 2017
DissipatedSeptember 16, 2017
Typhoon
10-minute sustained (JMA)
Highest winds150 km/h (90 mph)
Lowest pressure965 hPa (mbar); 28.50 inHg
Category 2-equivalent typhoon
1-minute sustained (SSHWS/JTWC)
Highest winds175 km/h (110 mph)
Lowest pressure960 hPa (mbar); 28.35 inHg
Overall effects
Fatalities29 total
Damage$836 million (2017 USD)
Areas affectedPhilippines, South China, Vietnam, Laos, Thailand, Myanmar, Bangladesh, Malay Peninsula
IBTrACS
Part of the 2017 Pacific typhoon season

Typhoon Doksuri, known in the Philippines as Tropical Storm Maring, was a strong Category 2 typhoon that mostly impacted the Philippines and Vietnam during mid-September 2017. Forming as the nineteenth named storm of the season, Doksuri developed as a weak tropical depression over to the east of Visayas on September 10.

Meteorological history

Map plotting the storm's track and intensity, according to the Saffir–Simpson scale
Map key
Saffir–Simpson scale
  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
triangle Extratropical cyclone, remnant low, tropical disturbance, or monsoon depression

During September 9, the Joint Typhoon Warning Center (JTWC) began monitoring on a tropical disturbance that had developed about 836 km (519 mi) west-northwest of the province of Eastern Samar.[1] During the next day, the Japan Meteorological Agency (JMA) classified the system as a weak tropical depression.[2] Six hours later, the JMA started to issue advisories on the depression when it had winds of 55 km/h (34 mph).[3] On 21:00 UTC of September 11, the JTWC followed suit, giving the designation of 21W.[4] The JMA upgraded 21W to a tropical storm during September 12, giving the name Doksuri, the nineteenth named storm of the annual typhoon season.[5] By September 13, robust convection had persisted near its low-level circulation center (LLCC) along with deep convective banding and a depicted "ragged" microwave eye feature. This prompted the JTWC to classify Doksuri as a tropical storm.[6] About six hours later, Doksuri's LLCC became well-defined,[7] and Doksuri strengthened into a severe tropical storm from the JMA.[8]

By September 14, strong convection was found to the south of its LLCC as convective banding began to wrap into a nascent eye.[9] Doksuri strengthened into a Category 1-equivalent typhoon. Around this time, Doksuri was already located in an area of low vertical wind shear along with warm sea-surface temperatures of about 30–31 °C (86–88 °F).[9] The JMA followed suit on upgrading Doksuri to a typhoon on 12:00 UTC of the same day.[10] With a slowly-developing eye with constant convection around its LLCC, Doksuri strengthened into a Category 2-equivalent typhoon.[11]

Preparations and impact

Deaths and damage from Typhoon Doksuri
Countries Fatalities Damage
(2017 USD)		 Ref
Death Injured
Philippines 22 15 $5.24 million [12]
Vietnam 6 152 $809 million [13]
Mainland China 0 0 $15.3 million [14]
Laos 1 0 $6.68 million [15]
Totals: 29 177 $836 million

Philippines

Tropical Depression Maring over Luzon on September 11

Doksuri, which is known as Maring, affected the Philippine archipelago of Luzon as a tropical storm. Shortly after when PAGASA began monitoring on the system, they already raised a Storm Signal Warning #1 over in the Southern Luzon portion, including provinces of Camarines Sur and Aurora on September 11.[16] Hours later, Signal Warning #1 was expanded to as west as Metro Manila, as north as Pangasinan and La Union, while every province in Central Luzon (Region III) was in that area. Moreover, local government units declared class suspensions to many places, especially in the capital region and the province of Bulacan for Tuesday, September 12.[17] Domestics flights were already canceled from Ninoy Aquino International Airport while bus trips were canceled in the Quezon-Aurora area.[18] After the storm, on September 13, officials in the Cordillera Administrative Region (CAR) had warned residents to refrain from doing outdoor activities over in mountainous areas, especially in Benguet, for possibilities of landslides.[19]

Laguna was one of the provinces that got hit hard by the storm as the city was placed under a state of calamity after it had "too much rainfall" that produced further flash floods and landslides.[20] Malacañang had provided ₱650 million (US$12.8 million) worth of relief goods and funds for victims while the Department of Health (DoH) had offered ₱20 million (US$393,000) of supplies for provinces from Cagayan Valley (Region II) down to Bicol (Region V).[20] Over in the Quezon province, three buses and a car were stranded in flooded streets and the 25 passengers in one bus were rescued later that day. Quezon officials deployed rescue boats and military trucks the rescue efforts while the Philippine Army's 2nd Infantry Division has deployed a rescue team in Calabarzon.[21] About 1,857 families or 7,549 people were staying in 116 evacuation centers over in Laguna and Quezon.[22] At least 2,103 families or 8,794 persons were affected in 109 barangays in the regions of Central Luzon, Metro Manila and the Calabarzon. The Department of Social Welfare and Development (DSWD) allocated a total of ₱577.8 million (US$11.3 million) as standby funds for affected families while 18,000 food packs were prepositioned.[22]

According to the NDRRMC, a total of 22 people were dead with 4 missing, while damage nationwide were at ₱267 million (US$5.24 million).[12]

Vietnam

Typhoon Doksuri was the tenth storm to affect Vietnam and was considered as the "most powerful storm in a decade" to impact the nation.[23] As early as September 13, authorities over the northern and central provinces banned people from going to sea.[24] Vietnam was placed under a red warning, which stands for "very high" risks. Waves as high as 32 ft (9.8 m) were predicted offshore. Coastal provinces, therefore, announced plans to shut down beaches and ban fishing by September 14.[25] The Red Cross Society has sent missions to Ha Tinh and Quang Binh and mobilized forces to support people in storm-hit areas during September 15.[26] About 1,500 villagers were evacuated over in the Thua Thien-Hue province due to water erosion. In Vietnam's capital city of Hanoi, 33 flights were canceled, while Vietnam Railways canceled seven passenger trains and five cargo trains in the Ha Tinh and Quang Binh provinces.[27] About 80,000 people have evacuated over in Central Vietnam.[23]

Doksuri brought wind gusts of up to 135 km/h (84 mph), which cut power and affected a total of 1.5 million people, although the Hong Kong Observatory (HKO) measured gusts of up to 160 km/h (99 mph).[23][27][28] The provinces of Thanh Hóa up to Quang Ngai saw total precipitation of 100–200 mm (3.9–7.9 in), with some reports of high as 300 mm (12 in), along with gusts of up to 80–100 km/h (50–62 mph). Water erosion affected 700 meters of sea dike in a village in Thuan An.[27] Seven fishing vessels and 183 small boats sank while 10 small irrigation dams were damaged.[29] 220 small boats were washed away over in the provinces of Nam Dinh and Quang Ngai.[28] In agriculture, Doksuri affected 4,473 hectares of rice with an additional 8,277 hectares for other crops, as well as 16,108 hectares of aquaculture.[29] Overall, 13,000 hectares of perennial crops were damaged, mostly over in the Quang Binh and Quang Tri provinces.[28] The storm also damaged a total of 10 km of highways and 17.9 km of local roads.[29] A total of 23,968 houses had damaged roofs, especially from the Ha Tinh province.[30] During September 16, Vietnam Electricity resumed power only to seriously affected areas such as Dong Hoi, Quang Binh and Nghe An.[29] On September 17, the Vietnam Red Cross (VRC) offered aid of about ₫1.5 billion (US$66,000) to six provinces that were hit by the typhoon. Moreover, the Coca-Cola company of Vietnam sent 24,000 water bottles to residents of in the Quang Binh province.[26] Around the same time, 31,000 soldiers and police were mobilized to help residents in hard-hit provinces.[31] By September 19, a total of 1.3 million households had been supplied with electricity again.[28] On the same day, the FLC Group provide a relief of ₫9 billion (US$396,000) to Nghe An, Ha Tinh and Quang Binh for the recovery of Doksuri.[32]

In all, 12 people were reported to be dead during the typhoon,[33] along with 215 injury and 4 missing.[34][35] Total damages from the typhoon reached ₫18.4 trillion (US$809 million).[13][36] Quang Binh and Ha Tinh were the worst hit provinces, which lost a total of ₫13.86 trillion (US$610 million).[37][38] Vietnam Electricity suffered a loss of ₫215 billion (US$9.46 million),[39] while damage on the health sector reached ₫50 billion (US$2.2 million).[40]

Other areas

Despite making landfall in Indochina, Doksuri affected Hainan and total economic losses were estimated to be CNY100 million (US$15.3 million).[14] Flooding triggered by the storm in Laos killed one person and total damage reached ₭55.5 billion (US$6.68 million).[15]

See also

References

  1. ↑ "Index of disturbance". ftp.emc.ncep.noaa.gov. Retrieved April 7, 2023.
  2. ↑ https://www.webcitation.org/6tPDwn36b?url=http://gwydir.demon.co.uk/advisories/WWJP25-RJTD_201709101800.htm
  3. ↑ "RSMC Tropical Cyclone Advisory TD". Japan Meteorological Agency. September 11, 2017. Archived from the original on September 11, 2017.
  4. ↑ "Tropical Depression 21W (Twenty-one) Warning Nr 001". Joint Typhoon Warning Center. September 11, 2017. Archived from the original on September 12, 2017.
  5. ↑ "RSMC Tropical Cyclone Advisory TS 1719 Doksuri (1719) UPGRADED FROM TD". Japan Meteorological Agency. September 12, 2017. Archived from the original on September 12, 2017.
  6. ↑ "Prognostic Reasoning for Tropical Storm 21W (Doksuri) Warning Nr 06". Joint Typhoon Warning Center. September 13, 2017. Archived from the original on September 13, 2017.
  7. ↑ "Prognostic Reasoning of Tropical Storm 21W (Doksuri) Warning Nr 07". Joint Typhoon Warning Center. September 13, 2017. Archived from the original on September 13, 2017.
  8. ↑ "RSMC Tropical Cyclone Advisory STS 1719 Doksuri (1719) UPGRADED FROM TS". Japan Meteorological Agency. September 13, 2017. Archived from the original on September 13, 2017.
  9. 1 2 "Prognostic Reasoning of Typhoon 21W (Doksuri) Warning Nr 10". Joint Typhoon Warning Center. September 14, 2017. Archived from the original on September 14, 2017.
  10. ↑ "RSMC Tropical Cyclone Advisory TY 1719 Doksuri (1719) UPGRADED FROM STS". Japan Meteorological Agency. September 14, 2017. Archived from the original on September 14, 2017.
  11. ↑ "Prognostic Reasoning of Typhoon 21W (Doksuri) Warning Nr 12". Joint Typhoon Warning Center. September 14, 2017. Archived from the original on September 14, 2017.
  12. 1 2 "SitRep No.11 re Preparedness Measures and Effects of TY LANNIE and TS MARING" (PDF). NDRRMC. October 15, 2017.
  13. 1 2 VIETNAM 2017 REPORT
  14. 1 2 "Member report. China" (PDF). typhooncommittee.org. Retrieved April 7, 2023.
  15. 1 2 http://www.vientianetimes.org.la/FreeContent/FreeConten_Ministry_222.htm
  16. ↑ "Signal No. 1 up in 6 provinces due to 'Maring'". Inquirer. September 11, 2017.
  17. ↑ "LIST: Class suspensions for September 12". Philstar. September 12, 2017.
  18. ↑ "Flights, bus trips canceled due to 'Lannie', 'Maring'". Philstar. September 12, 2017.
  19. ↑ "Cordillera braces for 'Maring', 'Lanie'". Sunstar. September 13, 2017.
  20. 1 2 "Laguna under state of calamity after 'Maring' leaves P18-M in damage". Inquirer. September 13, 2017.
  21. ↑ "Passengers climb to roof of stranded bus on flooded Quezon road". GMA News. September 12, 2017.
  22. 1 2 "#AGOS DSWD conducts relief operations for people displaced by Maring". Rappler. September 13, 2017.
  23. 1 2 3 "Typhoon Doksuri: Vietnam hit by 'most powerful storm in a decade'". Independent. September 15, 2017.
  24. ↑ "Vietnam braces for Typhoon Doksuri". Xinhua. September 13, 2017. Archived from the original on September 13, 2017.
  25. ↑ "Vietnam on red alert as worst storm in years bears down". VN Express. September 13, 2017.
  26. 1 2 "Social News 18/9". VietnamNet. September 18, 2017.
  27. 1 2 3 "Doksuri wreaks havoc in central Vietnam". Vietnam Net. September 16, 2017.
  28. 1 2 3 4 "Miền Trung thiệt hại hơn 11 nghìn tỷ đồng do bão Doksuri" (in Vietnamese). VN Express. September 19, 2017.
  29. 1 2 3 4 "Fatalities in Typhoon Doksuri increase to nine, four missing". Vietnam Net. September 18, 2017.
  30. ↑ "3 người chết, 8 người bị thương trong bão số 10". September 15, 2017.
  31. ↑ "(Typhoon Doksuri) Nine dead in Vietnam". The Standard. September 18, 2017.
  32. ↑ "FLC ủng hộ 3 tỉnh miền Trung 9 tỷ đồng khắc phục hậu quả bão số 10" (in Vietnamese). Công an nhân dân điện tử. September 19, 2017.
  33. ↑ Phan, Hoàng (September 16, 2017). "Bão số 10 làm 11 người chết, 1 người mất tích và 28 người bị thương" (in Vietnamese). Báo Thanh Niên.
  34. ↑ Quang, Thắng (September 18, 2017). "6 người chết, hơn 200 người bị thương do bão số 10" (in Vietnamese). Zing.
  35. ↑ "13 người chết và mất tích do bão số 10" (in Vietnamese). Baomoi. September 18, 2017.
  36. ↑ Hương, Việt (September 20, 2017). "Miền Trung thiệt hại hơn 16.000 tỷ đồng, nhiều gia đình "vườn không nhà trống" do bão số 10" (in Vietnamese). Nhadautu.
  37. ↑ Hoàng, Xuân (September 18, 2017). "Quảng Bình thiệt hại trên 7.800 tỷ đồng do bão số 10" (in Vietnamese). Báo Biên phòng.
  38. ↑ Doãn, Hòa (September 19, 2017). "Hà Tĩnh thiệt hại hơn 6.000 tỉ đồng do bão số 10" (in Vietnamese). Tuổi Trẻ.
  39. ↑ Xuân, Tiến (September 29, 2017). "EVN thiệt hại khoảng 215 tỷ đồng do bão số 10" (in Vietnamese). Vietnam Electricity.
  40. ↑ "Ngành Y tế thiệt hại hơn 50 tỷ đồng sau bão Doksuri" (in Vietnamese). VTC News. September 19, 2017.
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