Wikipedia

Tropical Storm Nangka (2020)

This article is about the 2020 tropical storm. For other typhoons of the same name, see List of storms named Nangka and List of storms named Nika.

Tropical Storm Nangka, also known in the Philippines as Tropical Depression Nika, was a weak tropical cyclone which would be the wettest tropical cyclone in the Western Pacific on record, producing 127.8 in (3,245 mm) of rainfall in Hướng Hóa, Vietnam.[1] Nangka would impact Hainan and parts of Indochina, which had been affected by Tropical Storm Linfa just days earlier. Nangka in total caused 4 deaths and 5 missing in China and Vietnam.

Tropical Storm Nangka (Nika)
Nangka approaching Vietnam on October 3
Meteorological history
FormedOctober 11, 2020
DissipatedOctober 13, 2020
Tropical storm
10-minute sustained (JMA)
Highest winds85 km/h (50 mph)
Lowest pressure990 hPa (mbar); 29.23 inHg
Tropical storm
1-minute sustained (SSHWS/JTWC)
Highest winds95 km/h (60 mph)
Lowest pressure989 hPa (mbar); 29.21 inHg
Overall effects
Fatalities4 total
Missing5
Damage$2.94 million
Areas affected
IBTrACS
Part of the 2020 Pacific typhoon season

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
  Extratropical cyclone, remnant low, tropical disturbance, or monsoon depression

On October 11, 2020, the Japan Meteorological Agency (JMA) began tracking a tropical depression off the west coast of Luzon.[2] The PAGASA declared the system as a tropical depression at 12:00 UTC, and since the storm formed inside of the Philippine Area of Responsibility (PAR) the agency named the system Nika.[3] On the same day at 21:00, the Joint Typhoon Warning Center began issuing warnings on the system.[4] On October 12, the system was declared a tropical storm by the JMA, and was named Nangka.[5] At 9:00, the system left the PAR and the PAGASA issued its final bulletin on the system.[6] At 19:20 CST (11:20 UTC) on October 13, Nangka made landfall over Qionghai, Hainan.[7] The system continued tracking westward, returning to open water, before making a second landfall in Ninh Bình, Vietnam on October 14. As the system tracked further inland, it dissipated over Laos on the same day.[8][9]

Preparations and impact

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Philippines

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The combined effects of Nangka and the southwest monsoon brought rainfall over much of the country. Gale warnings were issued over much of the Luzon coastline, with sea travel being described as risky by the PAGASA.[10] Parts of Metro Manila were flooded, with some parts of EDSA becoming impassable for some vehicles due to gutter-deep floodwaters.[11]

Hong Kong

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Stock markets, schools, and businesses were closed in Hong Kong. The Hong Kong Observatory issued a Signal No. 8 warning for the area when the cyclone was 450 kilometres (280 mi; 240 nmi) away from the Observatory, making it the furthest Signal No. 8 warning from Hong Kong since Typhoon Mary in 1960 before it was beaten by Lionrock the following year.[12][13]

Mainland China

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After the passage of Nangka over Hainan Island, 2 people died and 4 are missing as a result of a capsized boat.[14]

Vietnam

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Further information: 2020 Central Vietnam floods
 
Nangka making landfall in northern Vietnam on October 14.

In preparation for Nangka more than 150,000 people in Vietnam were evacuated from their homes. Some Vietnamese provinces banned vessels from heading out to sea during the storm.[15] Vinh Airport in Nghe An Province and Tho Xuan Airport in Thanh Hoa Province were closed on October 14. Vietnam Airlines and Pacific Airlines announced that eight flights were cancelled to the two airports.[16] Wind gust packed 120 km/h (75 mph) was reported in Nam Định.[17] Some areas in Northern Vietnam received heavy rainfall, such as 16.18 in (411 mm) in Yên Bái, 14.76 in (375 mm) in Quảng Ninh as of October 16.[18][15] In totals, the storm caused 2 deaths and 1 missing in Vietnam.[19] Damage in Nam Định Province valued at VND 68 billion (US$2.94 million).[20]

See also

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References

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  1. ^ Vietnam+ (VietnamPlus) (2020-10-19). "Thủ tướng Nguyễn Xuân Phúc: Không để dân 'màn trời, chiếu đất'". Vietnam+ (VietnamPlus) (in Vietnamese). Retrieved 2024-08-24.
  2. ^ "Tropical Cyclone Information". Japan Meteorological Agency. 2020-10-11. Archived from the original on 2020-10-29.
  3. ^ "Severe Weather Bulletin #1 for Tropical Depression Nika" (PDF). PAGASA. 2020-10-11. Archived from the original (PDF) on 2020-10-11. Retrieved 2020-10-11.
  4. ^ "Tropical Depression 18W (Eighteen) Warning No. 1". Joint Typhoon Warning Center. 2020-10-11. Archived from the original on 2020-10-12. Retrieved 2020-10-12.
  5. ^ "Tropical Cyclone Information". Japan Meteorological Agency. 2020-10-12. Archived from the original on 2020-10-12. Retrieved 2020-10-12.
  6. ^ "Sever Weather Bulletin #3-FINAL for Tropical Storm "Nika" (Nangka)" (PDF). PAGASA. 2020-10-12. Archived from the original (PDF) on 2020-10-12. Retrieved 2020-10-12.
  7. ^ "中央气象台10月13日19时20分发布台风登陆消息" (in Chinese). National Meteorological Center of CMA. 13 October 2020. Archived from the original on 13 October 2020. Retrieved 13 October 2020.
  8. ^ "Tropical Storm 18W (Nangka) Warning No. 11". Joint Typhoon Warning Center. 2020-10-14. Archived from the original on 2020-10-14. Retrieved 2020-10-14.
  9. ^ "Thai Meteorological Department - Warning". Archived from the original on 2020-10-30. Retrieved 2020-11-11.
  10. ^ Deiparine, Christian (October 12, 2020). "PAGASA: Tropical Storm 'Nika' out of PAR but rains to continue". The Philippine Star. Retrieved April 10, 2021.
  11. ^ Bermudo, Ludy (October 13, 2020). "Ilang lugar sa Metro Manila, nalubog sa baha". Pilipino Star Ngayon (in Tagalog). Retrieved April 10, 2021.
  12. ^ Dominic Lau, Richard Frost (October 13, 2020). "Hong Kong Markets Shut Tuesday on Tropical Storm Nangka". bloomberg.com. Bloomberg. Retrieved October 13, 2020.
  13. ^ Coconuts Hong Kong (October 13, 2020). "Tropical storm Nangka is farthest No. 8 typhoon from Hong Kong in 60 years". coconuts.co. Retrieved October 13, 2020.
  14. ^ "Vietnam, China, Laos - Tropical Storm NANGKA (DG ECHO, GDACS, JTWC, CMA, DBQG, media) (ECHO Daily Flash of 14 October 2020) - Viet Nam".
  15. ^ a b Nguyen Quy (October 14, 2020). "Storm Nangka devolves into tropical depression off north central Vietnam". e.vnexpress.net. VnExpress. Retrieved October 14, 2020.
  16. ^ "Airports, beaches closed in north-central Vietnam as Storm Nangka approaches - VnExpress International".
  17. ^ "Tin áp thấp nhiệt đới suy yếu từ bão số 7". Thethaovanhoa.vn. October 14, 2020. Retrieved October 18, 2020.
  18. ^ "FLASH REPORT ON DISASTER RISK MANAGEMENT SITUATION ON 16 OCTOBER 2020". Vietnam Disaster Management Authority. 17 October 2020. Retrieved 18 October 2020.
  19. ^ "FLASH REPORT ON DISASTER RISK MANAGEMENT SITUATION ON 17 OCTOBER 2020". Vietnam Disaster Management Authority. 18 October 2020. Retrieved 18 October 2020.
  20. ^ "Nam Định: Bão số 7 gây thiệt hại gần 68 tỉ đồng" (in Vietnamese). Báo Nông Nghiệp. October 23, 2020. Retrieved October 25, 2020.
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