Tropical Storm Talas (2017) Explained

Severe Tropical Storm Talas
Formed:July 14, 2017
Dissipated:July 17, 2017
Winds:50
Pressure:985
Winds:50
Pressure:985
Year:2017
Fatalities:14 total
Damage:117800000
Areas:Vietnam, South China, Laos, Thailand, Myanmar
Season: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 the fourth 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 sunk about 50 boats. Nearly 50000ha of vegetable fields, about 800ha of aquaculture, and 47600ha of rice and subsidiary crops were damaged. Damage was estimated at 2.52 trillion₫ (US$109 million).[1]

Meteorological history

During July 13, the Joint Typhoon Warning Center (JTWC) began to monitor a tropical disturbance located about 648km (403miles) to the southeast of Hanoi, Vietnam.[2] 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.[3] Six hours later, the JMA began issuing advisories, noting that the system was producing 10-minute sustained winds of at least 55km/h.[4] 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.[5] With the system continuing to develop, the JMA upgraded it to a tropical storm, assigning it the name Talas.[6] As convective banding improved, the JTWC upgraded the disturbance to a tropical depression by midday on July 15.[7] [8] 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 40mph.[9]

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.[10] At 09:00 UTC, the JMA upgraded Talas into a severe tropical storm after the storm attained 10-minute sustained winds of 95km/h and a minimum barometric pressure of 985hPa; this constituted its peak intensity.[11] At the same time, the JTWC also recorded 1-minute sustained peak winds of 95km/h.[12] Shortly thereafter, Talas began to weaken due to land interaction and the JMA soon downgraded the system back to a tropical storm.[13] Around 18:00 UTC, Talas made landfall in Central Vietnam, near the city of Vinh.[14] Three hours later, the JTWC issued their final advisory on Talas as it continued to degrade while progressing inland.[15] 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.[16]

Preparations and impact

Vietnam

Talas made landfall near Vinh at around 18:00 UTC on July 16 as a moderate tropical storm.[14] 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 100km/h with wind damage being reported in Nghe An, Thanh Hóa and Ha Tinh provinces.[14] Over 400mm 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 100mm. The storm sank a coal ship late on July 16; only three of the people on board were rescued while another ten remained missing.[17] In the Quảng Bình Province, fishing boats were washed ashore by waves as high as 5m (16feet); there, seven people were injured.[18] 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.[18]

Overall, in Vietnam, the storm left 14 people dead and damaged around 2,700 houses.[19] About 50 boats sank. Around 50000abbr=onNaNabbr=on of vegetable fields,[20] about 801ha of aquaculture farms, and 47632ha of rice and subsidiary crops were damaged.[21] Damages in Nghe An were reported to reach up to 993 billion₫ (US$43.7 million).[22] Total damage in Vietnam reached 1.6 trillion₫ (US$70.4 million).[23]

Hainan

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.[24] Winds of 62– were recorded over in some places, especially in areas around the Lingshui Li Autonomous County, as the storm neared the coast.[25] Southern portions of the province received rainfall of 3–. About 49 tourists were stranded from an island off the coast of Guandong.[26] Total economic losses in Hainan Province reached CNY 24 million (US$3.5 million).[27] In total, damage by Talas in China reached CNY 60 million (US$8.8 million).[28]

See also

External links

Notes and References

  1. Web site: TỔNG HỢP THIỆT HẠI DO THIÊN TAI NĂM 2017 . 2024-03-21.
  2. Web site: Unknown. https://archive.today/20240523014724/https://www.webcitation.org/6rvBL5mvd?url=http://gwydir.demon.co.uk/advisories/ABPW10-PGTW_201707130600.htm . dead . 2024-05-23 .
  3. Web site: Unknown. https://archive.today/20240523014805/https://www.webcitation.org/6rzobvGVE?url=http://gwydir.demon.co.uk/advisories/WWJP25-RJTD_201707140600.htm . dead . 2024-05-23 .
  4. Web site: RSMC Tropical Cyclone Advisory TD. July 14, 2017. May 23, 2024. Japan Meteorological Agency. live. https://archive.today/20240523014922/https://www.webcitation.org/6rzoHtb8Q?url=http://gwydir.demon.co.uk/advisories/WTPQ20-RJTD_201707141200.htm.
  5. Web site: Unknown. https://archive.today/20240523015324/https://www.webcitation.org/6rzpVfmZI?url=http://gwydir.demon.co.uk/advisories/WTPN21-PGTW_201707150230.htm . dead . 2024-05-23 .
  6. Web site: RSMC Tropical Cyclone Advisory TS 1704 TALAS (1704) UPGRADED FROM TD. July 15, 2017. https://archive.today/20240523014840/https://www.webcitation.org/6rzoFXN2S?url=http://gwydir.demon.co.uk/advisories/WTPQ20-RJTD_201707150600.htm. live. May 23, 2024. Japan Meteorological Agency.
  7. Web site: Tropical Depression 06W (Talas) Warning Nr 001. July 15, 2017. Joint Typhoon Warning Center. https://archive.today/20240523015002/https://www.webcitation.org/6rzp8fGsk?url=http://gwydir.demon.co.uk/advisories/WTPN31-PGTW_201707151500.htm. live. May 23, 2024.
  8. Web site: Prognostic Reasoning for Tropical Depression 06W (Talas) Warning Nr 01. July 15, 2017. Joint Typhoon Warning Center. https://archive.today/20240523015242/https://www.webcitation.org/6rzpMFYLJ?url=http://gwydir.demon.co.uk/advisories/WDPN31-PGTW_201707151500.htm. live. May 23, 2024.
  9. Web site: Prognostic Reasoning for Tropical Storm 06W (Talas) Warning Nr 02. July 15, 2017. Joint Typhoon Warning Center. https://archive.today/20240523015123/https://www.webcitation.org/6rzpLnz3A?url=http://gwydir.demon.co.uk/advisories/WDPN31-PGTW_201707152100.htm. live. May 23, 2024.
  10. Web site: Prognostic Reasoning for Tropical Storm 06W (Talas) Warning Nr 03. July 16, 2017. May 23, 2024. Joint Typhoon Warning Center. live. https://archive.today/20240523015203/https://www.webcitation.org/6rzpLR46o?url=http://gwydir.demon.co.uk/advisories/WDPN31-PGTW_201707160300.htm.
  11. Web site: RSMC Tropical Cyclone Advisory STS 1704 TALAS (1704) UPGRADED FROM TS. July 16, 2017. May 23, 2024. Japan Meteorological Agency. live. https://archive.today/20240523015525/https://www.webcitation.org/6s1zqBDhO?url=http://gwydir.demon.co.uk/advisories/WTPQ20-RJTD_201707160900.htm.
  12. Web site: Prognostic Reasoning for Tropical Storm 06W (Talas) Warning Nr 04. July 16, 2017. May 23, 2024. Joint Typhoon Warning Center. live. https://archive.today/20240523015042/https://www.webcitation.org/6rzpL1zU6?url=http://gwydir.demon.co.uk/advisories/WDPN31-PGTW_201707160900.htm.
  13. Web site: RSMC Tropical Cyclone Advisory TS 1704 TALAS (1704) DOWNGRADED FROM STS. July 16, 2017. May 23, 2024. Japan Meteorological Agency. live. https://archive.today/20240523015442/https://www.webcitation.org/6s1zp4GRr?url=http://gwydir.demon.co.uk/advisories/WTPQ20-RJTD_201707161800.htm.
  14. Web site: Tropical Storm Talas (06W). July 17, 2017. Rish Management Solutions, Inc..
  15. Web site: Tropical Storm 06W (Talas) Warning Nr 006. July 16, 2017. May 23, 2024. Joint Typhoon Warning Center. live. https://archive.today/20240523015603/https://www.webcitation.org/6s20946MW?url=http://gwydir.demon.co.uk/advisories/WTPN31-PGTW_201707162100.htm.
  16. Web site: RSMC Tropical Cyclone Advisory TD 1704 TALAS (1704) DOWNGRADED FROM TS. July 17, 2017. May 23, 2024. Japan Meteorological Agency. live. https://archive.today/20240523015407/https://www.webcitation.org/6s1znBCnm?url=http://gwydir.demon.co.uk/advisories/WTPQ20-RJTD_201707170900.htm.
  17. News: Tropical Storm Talas hits Vietnam, leaves one dead. July 17, 2017. The Gulf Today. July 20, 2017. https://web.archive.org/web/20170717132226/http://gulftoday.ae/portal/6ae68744-cd78-4427-b1c0-e76a27a9c6d0.aspx. July 17, 2017. dead.
  18. Web site: Storm Talas leaves path of destruction in Vietnam's central provinces. July 17, 2017. Nhân Dân.
  19. News: Storm Talas kills 14 in Vietnam, destroys homes. 19 July 2017. The Straits Times. 19 July 2017.
  20. News: A tropical storm has left four dead, five missing in Vietnam. July 19, 2017. July 19, 2017. The China Post.
  21. News: One more body found from missing ship. July 20, 2017. Viet Nam News.
  22. News: Storm-ravaged Vietnamese province closes beaches with Sonca bearing down. July 25, 2017. VN Express.
  23. Web site: Tổng cục Thống kê. www.gso.gov.vn.
  24. News: Tropical Storm "Talas" makes landfall over central Vietnam. July 17, 2017. The Watchers.
  25. Web site: Typhoon Talas to hit south China, 20,000 boats moored at bay. https://web.archive.org/web/20170715184553/http://news.xinhuanet.com/english/2017-07/16/c_136446617.htm. dead. July 15, 2017. July 16, 2017. Xinhua.
  26. Web site: Stranded Tourists Rescued From China Island as Tropical Storm Talas Approaches. July 16, 2017. The Weather Channel.
  27. Web site: 海南部分地区遭受台风灾害. July 17, 2017. 中华人民共和国民政部. December 3, 2017. https://web.archive.org/web/20171204171131/http://www.mca.gov.cn/article/yw/jzjz/zqkb/201707/20170700005149.shtml. December 4, 2017. dead.
  28. Web site: MEMBER REPORT [China]].

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