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Tropical Storm Talas (2017)

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Severe Tropical Storm Talas
Severe Tropical Storm Talas near peak intensity and approaching Vietnam on July 16
Meteorological history
FormedJuly 14, 2017
DissipatedJuly 17, 2017
Severe tropical storm
10-minute sustained (JMA)
Highest winds95 km/h (60 mph)
Lowest pressure985 hPa (mbar); 29.09 inHg
Tropical storm
1-minute sustained (SSHWS/JTWC)
Highest winds95 km/h (60 mph)
Lowest pressure985 hPa (mbar); 29.09 inHg
Overall effects
Fatalities14 total
Damage$118 million (2017 USD)
Areas affectedVietnam, South China, Laos, Thailand, Myanmar
IBTrACSEdit this at Wikidata
Part of the 2017 Pacific typhoon season

Severe Tropical Storm Talas was a tropical cyclone that impacted Vietnam during mid-July 2017. Talas was first tracked as a tropical disturbance over in the South China Sea on July 13 and was upgraded to a tropical depression during the next day. The depression intensified into a named storm of the 2017 Pacific typhoon season during July 15. Before making landfall in Vietnam, Talas reached its peak intensity as a severe tropical storm during July 16. Talas weakened to an area of low pressure on July 17 inland. Throughout Vietnam, the storm killed 14 people and damaged around 2,700 houses. Rough seas sank about 50 boats. Nearly 50,000 hectares (120,000 acres) of vegetable fields, about 800 hectares (2,000 acres) of aquaculture, and 47,600 hectares (118,000 acres) of rice and subsidiary crops were damaged. The storm also caused US$8.8 million damage in Hainan province in China, increased rainfall in Myanmar and Thailand, and caused landslides and flooding in areas of Central and Northern Laos.

Meteorological history

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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 July 13, the Joint Typhoon Warning Center (JTWC) began to monitor a tropical disturbance located about 648 km (403 mi) to the southeast of Hanoi, Vietnam.[1] By the next day, at around 06:00 UTC, the Japan Meteorological Agency (JMA) classified the system as a weak tropical depression, as it started to move slowly towards the northwest at a speed of 19 kilometres per hour (12 mph).[2] Six hours later, the JMA began issuing advisories, noting that the system was producing 10-minute sustained winds of at least 55 km/h (34 mph).[3] The JTWC issued a Tropical Cyclone Formation Alert at 02:30 UTC on July 15 after satellite imagery depicted deep convection wrapping into its developing low-level circulation center, with a favorable environment for further development within Hainan.[4] With the system continuing to develop, the JMA upgraded it to a tropical storm, assigning it the name Talas.[5] As convective banding improved, the JTWC downgraded the disturbance to a tropical depression by midday on July 15.[6][7] Several hours later, the JTWC further upgraded Talas to a tropical storm after recording Dvorak estimates of T2.5, indicating 1-minute sustained winds of 65 km/h (40 mph).[8]

On July 16, Talas gradually intensified as it became better organized in response to being located in a favorable environment, consisting of low to moderate northeasterly vertical wind shear as well as good outflow to the south.[9] At 09:00 UTC, the JMA upgraded Talas into a severe tropical storm after the storm attained 10-minute sustained winds of 95 km/h (59 mph) and a minimum barometric pressure of 985 hPa (29.1 inHg); constituting its peak intensity.[10] At the same time, the JTWC also recorded one-minute sustained peak winds of 95 km/h (59 mph) while trailing along Hainan.[11] Shortly thereafter, Talas began to weaken due to land interaction and the JMA soon downgraded the system back to a tropical storm.[12] Around 18:00 UTC, Talas made landfall in Central Vietnam, near the city of Vinh.[13] Three hours later, the JTWC issued their final advisory on Talas as it continued to degrade while progressing inland.[14] The JMA soon followed suit with their final advisory at 09:00 UTC on July 17 while the weakening Talas was located over the northern portion of Laos.[15]

Analysis

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According to a 2020 research paper. the storm created a phenomenon that rose sea levels before landfall in Vietnam.[16]

Preparations and impact

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Vietnam

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On July 15, Meteorologists expected heavy rainfall from the storm.[17] Talas made landfall near Vinh at around 18:00 UTC on July 16 as a moderate tropical storm.[13] According to the Central Steering Committee for Natural Disaster Prevention and Rescue, more than 2,700 homes were damaged in Nghe An Province. The Vietnam's National Center for Hydro-Meteorological Forecasting recorded wind gusts up to 100 km/h (62 mph) with wind damage being reported in Nghe An, Thanh Hóa and Ha Tinh provinces.[13] Over 400 mm (16 in) of rain fell in the central and northern parts of the country in the two days following up to landfall, while the capital, Hanoi, received 100 mm (3.9 in).[18] The storm sank a coal ship late on July 16; only three of the people on board were rescued while another ten remained missing. The most affected province[a] was Nghe An, with one fatality.[19] In the Quảng Bình Province, fishing boats were washed ashore by waves as high as 5 m (16 ft); there, seven people were injured. A boat carrying eight weather officials were rescued by the national guard because of the storm. During July 17, flooded streets and disrupted train services stranded more than 4,000 passengers in the capital. Railway services from Hanoi to Vinh were canceled while trains from Hanoi to Saigon were delayed by five to seven hours.[20]

The storm also hit the provinces of Thanh Hóa and Hà Tĩnh.[21] The Irrigation Department General Thongplew Kongjun stated that the department had multiple plans and measures to tame the impact caused by the storm. Including ordering every district to have an irrigation office and/or adding pumps.[22] The storm also caused multiple severe traffic jams, and capsized a ship, injuring seven people.[23] Power lines in three provinces were also damaged as a result of the storm.[24] Eight flights were also cancelled by the airline VietJet Air.[25] Multiple other airlines also cancelled ten other flights.[26]

Overall, in Vietnam, the storm left 14 people dead and damaged around 2,700 houses.[27] About 50 boats sank. Around 50,000 ha (123,555 acres) of vegetable fields,[18] about 801 ha (1,980 acres) of aquaculture farms, and 47,632 ha (117,700 acres) of rice and subsidiary crops were damaged.[28] Damages in Nghe An were reported to reach up to 993 billion₫ (US$43.7 million).[29] Total damage in Vietnam reached 1.6 trillion₫ (US$70.4 million).[30] The total cost of other damages was estimated at 2.52 trillion₫ (US$109 million).[31]

Hainan

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During July 22, China's National Observatory issued a "blue alert" to Hainan province and the Beibu Gulf. About 22,901 fishing boats were moved while 39,425 people working at sea farms evacuated to Guangdong province.[32] Winds of 62–74 km/h (39–46 mph) were recorded over in some places, especially in areas around the Lingshui Li Autonomous County, as the storm neared the coast.[33] Southern portions of the province received rainfall of 3–6 in (8–15 cm) and tourists were stranded on a remote island off the coast of Guandong.[34] Total economic losses in Hainan Province reached CNY 24 million (US$3.5 million).[35] In total, damage by Talas in China reached CNY 60 million (US$8.8 million).[36]

Other areas

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Other than Vietnam and Hainan, Laos, Myanmar and Thailand were affected with strong winds and heavy rains. Rainfall increased in Thailand between 15 and 18 July, reaching a peak of 145 mm (5.7 in) on 17 July in the Phu Phiang district of Nan province.[37] Multiple rivers in the Nan province, especially the Nan River, reportedly overflowed, causing three districts to flood.[38] The storm passed over the Laotian provinces of Xiangkhouang, Xaysomboun and Bolikhamsai early in the morning of 17 July. On that and the following day, rain caused landslides, flash flood and floods in some areas of Central and Northern Laos.[39]

See also

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Notes

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  1. ^ According to Gulf Today

References

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  1. ^ "Significant Tropical Weather Advisory for the Western and South Pacific Oceans". Archived from the original on 2024-05-23.
  2. ^ "Warning and Summary 140600". Archived from the original on 2024-05-23.
  3. ^ "RSMC Tropical Cyclone Advisory TD". Japan Meteorological Agency. July 14, 2017. Archived from the original on May 23, 2024.
  4. ^ "Tropical Cyclone Formation Alert". Archived from the original on 2024-05-23.
  5. ^ "RSMC Tropical Cyclone Advisory TS 1704 TALAS (1704) UPGRADED FROM TD". Japan Meteorological Agency. July 15, 2017. Archived from the original on May 23, 2024.
  6. ^ "Tropical Depression 06W (Talas) Warning Nr 001". Joint Typhoon Warning Center. July 15, 2017. Archived from the original on May 23, 2024.
  7. ^ "Prognostic Reasoning for Tropical Depression 06W (Talas) Warning Nr 01". Joint Typhoon Warning Center. July 15, 2017. Archived from the original on May 23, 2024.
  8. ^ "Prognostic Reasoning for Tropical Storm 06W (Talas) Warning Nr 02". Joint Typhoon Warning Center. July 15, 2017. Archived from the original on May 23, 2024.
  9. ^ "Prognostic Reasoning for Tropical Storm 06W (Talas) Warning Nr 03". Joint Typhoon Warning Center. July 16, 2017. Archived from the original on May 23, 2024.
  10. ^ "RSMC Tropical Cyclone Advisory STS 1704 TALAS (1704) UPGRADED FROM TS". Japan Meteorological Agency. July 16, 2017. Archived from the original on May 23, 2024.
  11. ^ "Prognostic Reasoning for Tropical Storm 06W (Talas) Warning Nr 04". Joint Typhoon Warning Center. July 16, 2017. Archived from the original on May 23, 2024.
  12. ^ "RSMC Tropical Cyclone Advisory TS 1704 TALAS (1704) DOWNGRADED FROM STS". Japan Meteorological Agency. July 16, 2017. Archived from the original on May 23, 2024.
  13. ^ a b c "Tropical Storm Talas (06W)". Rish Management Solutions, Inc. July 17, 2017. Archived from the original on 5 August 2017.
  14. ^ "Tropical Storm 06W (Talas) Warning Nr 006". Joint Typhoon Warning Center. July 16, 2017. Archived from the original on May 23, 2024.
  15. ^ "RSMC Tropical Cyclone Advisory TD 1704 TALAS (1704) DOWNGRADED FROM TS". Japan Meteorological Agency. July 17, 2017. Archived from the original on May 23, 2024.
  16. ^ Trinh, Tam Thi; Pattiaratchi, Charitha; Bui, Toan (10 July 2020). "The Contribution of Forerunner to Storm Surges along the Vietnam Coast". Journal of Marine Science and Engineering. 8 (7): 508. doi:10.3390/jmse8070508. ISSN 2077-1312.
  17. ^ "Tropical Storm "Talas" makes landfall over central Vietnam". The Watchers. 2017-07-17. Retrieved 2024-09-08.
  18. ^ a b "A tropical storm has left four dead, five missing in Vietnam". The China Post. July 19, 2017. Archived from the original on 19 July 2017. Retrieved July 19, 2017.
  19. ^ "Tropical Storm Talas hits Vietnam, leaves one dead". The Gulf Today. July 17, 2017. Archived from the original on July 17, 2017. Retrieved July 20, 2017.
  20. ^ "Storm Talas leaves path of destruction in Vietnam's central provinces". Nhân Dân. July 17, 2017. Archived from the original on 12 November 2019.
  21. ^ Huong, Pham (15 July 2017). "Tropical storm Talas bearing down on central Vietnam". VnExpress. Retrieved 25 August 2024.
  22. ^ "Irrigation Dept follows up on water situation in Sukhothai - Thailand | ReliefWeb". reliefweb.int. 2017-07-25. Retrieved 2024-08-25.
  23. ^ "9 dead or missing in Vietnam as infrastructure is damaged". VnExpress. 17 July 2017. Retrieved 25 August 2024.
  24. ^ baotintuc.vn (2017-07-18). "Hệ thống lưới điện hàng trăm xã bị ảnh hưởng do bão số 2" [The power grid system of hundreds of communes affected by storm No. 2]. baotintuc.vn (in Vietnamese). Retrieved 2024-09-08. [the remaining 3 lines in 3 provinces of Thanh Hoa, Nghe An, Ha Tinh are being damaged, the operation management units will fix them on July 17, 2017]
  25. ^ baotintuc.vn (2017-07-16). "Vietjet dừng 8 chuyến bay đi/đến Bắc Trung Bộ do ảnh hưởng bởi bão Talas" [Vietjet stopped 8 flights to/from North Central Vietnam due to the impact of Typhoon Talas]. baotintuc.vn (in Vietnamese). Retrieved 2024-09-08. [Specifically, flights VJ250 (Ho Chi Minh City – Thanh Hoa), VJ249 (Thanh Hoa – Ho Chi Minh City), VJ218, VJ220 (Ho Chi Minh City – Vinh), VJ219, VJ221 (Vinh – Ho Chi Minh City), VJ264 (Ho Chi Minh City – Dong Hoi), VJ265 (Dong Hoi – Ho Chi Minh City) had to stop operating. In addition, many other flights were also affected by the chain.]
  26. ^ baotintuc.vn (2017-07-16). "Không khai thác 10 chuyến bay do ảnh hưởng của bão số 2" [Not operating 10 flights due to the impact of Typhoon No. 2]. baotintuc.vn (in Vietnamese). Retrieved 2024-09-08. [On July 16, Vietnam Airlines (VNA), Jetstar Pacific (JPA) and VASCO (0V) announced that, due to the impact of Typhoon No. 2 (Talas) in the North Central provinces, to ensure flight safety, airlines will not operate 10 flights in the evening of July 16.]
  27. ^ "Storm Talas kills 14 in Vietnam, destroys homes". The Straits Times. 19 July 2017. Retrieved 19 July 2017.
  28. ^ "One more body found from missing ship". Viet Nam News. July 20, 2017.
  29. ^ "Storm-ravaged Vietnamese province closes beaches with Sonca bearing down". VN Express. July 25, 2017.
  30. ^ "Tổng cục Thống kê" [Socio-economic situation in the first seven months of 2017]. www.gso.gov.vn. Archived from the original on 21 September 2017. [If including 979.8 trillion VND of nearly 21.4 thousand enterprises changing to increase capital, the total registered capital added to the economy in 7 months of 2017 is 1,670.5 trillion VND.]
  31. ^ "TỔNG HỢP THIỆT HẠI DO THIÊN TAI NĂM 2017" (PDF). Vietnamese Government. Retrieved 2024-03-21.
  32. ^ "Tropical Storm "Talas" makes landfall over central Vietnam". The Watchers. July 17, 2017. Retrieved 14 September 2024.
  33. ^ "Typhoon Talas to hit south China, 20,000 boats moored at bay". Xinhua. July 16, 2017. Archived from the original on July 15, 2017.
  34. ^ "Stranded Tourists Rescued From China Island as Tropical Storm Talas Approaches". The Weather Channel. July 16, 2017.
  35. ^ "海南部分地区遭受台风灾害" [Some areas of Hainan were hit by typhoons]. 中华人民共和国民政部. July 17, 2017. Archived from the original on December 4, 2017. Retrieved December 3, 2017. [on July 17, 135,000 people were affected in four districts of Sanya City, including Jiyang, Haitang and Tianya, and five counties (cities) such as Qionghai, Wenchang and Lingao, and 33,000 people were urgently relocated, 21,000 hectares of crops were affected, and more than 2,400 yuan of direct economic losses were lost.]
  36. ^ "MEMBER REPORT [China]" (PDF). Typhoon Commitee. 30 October 2017. p. 5. Retrieved 14 September 2024.
  37. ^ "Member Report Thailand" (PDF). Typhoon Committee. 3 November 2017. pp. 1–2. Retrieved 11 September 2024.
  38. ^ "Thailand: Tropical storm Talas causes flooding in North - Thailand | ReliefWeb". reliefweb.int. 2017-07-18. Retrieved 25 August 2024.
  39. ^ "Member Report Lao PDR" (PDF). Typhoon Committee. 3 November 2017. pp. 2–3. Retrieved 11 September 2024.
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