Tropical Depression 18W (2013)

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Tropical Depression 18W
Tropical depression (JMA scale)
Tropical depression (JTWC scale)
JMA TD Sep 18 2013 0615Z.jpg
Tropical Depression 18W on September 18
Formed September 16, 2013
Dissipated September 21, 2013
Highest winds 10-minute sustained: 55 km/h (35 mph)
1-minute sustained: 45 km/h (30 mph)
Lowest pressure 996 hPa (mbar); 29.41 inHg
Fatalities 23 dead, 12 missing[1][2][3]
Damage $79.7 million (2013 USD)
Areas affected Vietnam, Laos, Thailand
Part of the 2013 Pacific typhoon season

Tropical Depression 18W was a tropical depression that impacted Vietnam, Laos, Cambodia[citation needed] and Thailand during mid September 2013. The system was first noted as a tropical depression on September 16, 2013, while it was located within the South China Sea to the south east of Hanoi in Vietnam. Over the next two days the system gradually developed further, before it was reported by the Vietnamese National Centre for Hydro Meteorological Forecasting that the system had developed into their eighth tropical storm of 2013. However, other meteorological agencies did not report that the system had developed into a tropical storm.

In Vietnam, flooding triggered by the storm killed at least seven people and 5,000 homes were damaged or destroyed. Severe flooding took place in neighboring Laos where at least 10,000 structures were damaged and losses reached $61 million (United States dollars).

Meteorological history

Map plotting the track and intensity of the storm according to the Saffir–Simpson hurricane wind scale

On September 16, the Japan Meteorological Agency (JMA) and the Vietnamese National Centre for Hydro Meteorological Forecasting (VNCHMF) reported that a tropical depression had developed within an area of low to moderate vertical windshear, about 1,000 km (620 mi) to the southeast of Hà Nội, Vietnam.[4][5][6] Over the next two days the depression gradually developed further as it moved westwards, before the VNCHMF reported during September 17, that the system had developed into their eighth tropical storm of the season.[7][8] Later that day as vertical windshear over the system decreased slightly, the Joint Typhoon Warning Center (JTWC) issued a Tropical Cyclone Formation Alert.[9] During the next day after the depressions low level circulation center had started to consolidate, the JTWC initiated advisories and designated the system as Tropical Depression 18W.[10] During that day the system moved westwards along the southern edge of the subtropical ridge of high pressure, before the JTWC issued its final warning on the system later that day after the depression had made landfall on Vietnam, near the port city of Da Nang.[8][10][11] Over the next couple of days the system continued to move westwards and moved through Vietnam, Laos and Thailand, before it was last noted on September 21 over the Thai province of Phetchabun.[12]

Impact

Vietnam

On September 17, one of the deputy prime ministers of Vietnam Hoàng Trung Hải, asked the Central Committee for Flood and Storm Control and the National Committee for Search and Rescue, to be prepared for the system impacting Vietnam.[13] He also asked local authorities and border guards to call on vessels, between Quang Binh and Phu Yen provinces to take shelter and evacuate people in vulnerable areas to higher places.[13] Several ministries and agencies were tasked to inspect the safety of dams and reservoirs in response to possible flooding.[13]

During September 18, the system made landfall on Vietnam with provinces from Thừa Thiên–Huế and Quảng Nam provinces affected by a moderate rain, heavy rain and flooding[14][1]

Storm and rain storm caused the provinces of Khanh Hoa to Nghe An and north west Highlands, along with a flood to 10 dead and 12 missing, 6 wounded.[1]Đắk Lắk Province suffered the worst of people and property, with 5 dead and 7 missing.[15] More than 2,000 home houses were flooded, 2,100 households in Ea Sup district emergency relocation. Thousands of hectares of rice and crops damaged. Many roads were flooded Ea Sup districts of fragmentation in some areas.[16]

In Hà Tĩnh, due to the storm, in Hà Tĩnh heavy rain, wind tugging at 6 Beauforts, 7 Beauforts and tornadoes cause more damage to the people. The total damage caused by a tornado more than 500 million dong ($24 thousand).[17] In Nghe An, 13 people killed by floods, nearly 392 billion Vietnamese dong ($18.6 million).[3] In Nam Dong (Thua Thien Hue Province), the total damage caused about 1.9 billion Vietnamese dong ($90 thousand).[18]

In Da Nang and Quảng Nam Province, Department of Education and Training at two local students have to leave school to avoid the storm.[19]

The total damage caused by the storm and flash flooding in the Vietnam is $18.7 million USD.[1][3][18][17]

Other areas

Within Laos severe flooding was reported with at least 10,000 structures damaged and economic losses reaching $61 million.[2] The depression also produced heavy rainfall, within north-eastern, central and eastern parts of Thailand.[20] Flash flooding was reported within the provinces of Kamphang Phet, Tak, Nan, Phetchabun, Phitsanulok, Khon Kaen, Ubon Ratchathani, Surin, Si Sa Ket, Nakhon Ratchasima, Amnat Charoen, Buri Ram, Nakhon Sawan, Lop Buri, Kanchanaburi, Sa Kaeo, Prachin Buri and Nakhon Nayok.[20]

Controversy

Most of all weather stations (except stations Vietnam) said that it was a tropical depression, not the storm on its release and only Vietnam recognizes it is a storm and the storm on its release.[21][22][23]

Within the system's aftermath the VNCHMF was accused of report the storm wrong, because according to the forecast on the morning of September 19, but the night September 18 made landfall, affecting the prevention of the localities affected. However, in the afternoon session September 20, the VNCHMF has denied this.

Mr.Bui Minh Tang confirms Da Nang city for the entire school students after the storm ends because of the Center's newsletter afternoon September 18 is reasonable, because this time there's heavy rain, but on 19 September is back to school "bit careful".[22][23][24]

See also

References

  1. ↑ 1.0 1.1 1.2 1.3 Lua error in package.lua at line 80: module 'strict' not found.
  2. ↑ 2.0 2.1 Lua error in package.lua at line 80: module 'strict' not found.
  3. ↑ 3.0 3.1 3.2 Lua error in package.lua at line 80: module 'strict' not found.
  4. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  5. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  6. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  7. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  8. ↑ 8.0 8.1 Lua error in package.lua at line 80: module 'strict' not found.
  9. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  10. ↑ 10.0 10.1 Lua error in package.lua at line 80: module 'strict' not found.
  11. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  12. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  13. ↑ 13.0 13.1 13.2 Lua error in package.lua at line 80: module 'strict' not found.
  14. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  15. ↑ Bão số 8: Miền Trung - Tây Nguyên gánh thêm nhiều tổn thất! Infonet.(in Vietnamese). Retrieved in November 7, 2013.
  16. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  17. ↑ 17.0 17.1 Lua error in package.lua at line 80: module 'strict' not found.
  18. ↑ 18.0 18.1 Nam Đông: Bão số 8 gây thiệt hại gần 2 tỷ đồng (Nam Dong: The 8th Storm damages nearly 2 billion dong) Song Huong Magazine.
  19. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  20. ↑ 20.0 20.1 Lua error in package.lua at line 80: module 'strict' not found.
  21. ↑ Miền Trung lo lu lớn do bão số 8 ANTD (in Vietnamese).Retrieved in November 7, 2013.
  22. ↑ 22.0 22.1 Lua error in package.lua at line 80: module 'strict' not found.
  23. ↑ 23.0 23.1 Lua error in package.lua at line 80: module 'strict' not found.
  24. ↑ Lua error in package.lua at line 80: module 'strict' not found.

External links

  • JTWC Best Track Data of Tropical Depression 18W (Eighteen)
  • 18W.EIGHTEEN from the U.S. Naval Research Laboratory
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