Tropical Storm Noul (2020)

Tropical Storm Noul, also known in the Philippines as Tropical Depression Leon, was a weak, but deadly tropical cyclone that impacted central Vietnam, which had been affected by Tropical Storm Sinlaku more than one month earlier. Noul originated from a tropical system in the Philippine Sea in September 15. The system was upgraded into a tropical depression later that same day by JMA, with JTWC and PAGASA following suit in 15:00 UTC, with PAGASA assigning the local name Leon to the developing tropical cyclone. As Leon was leaving the area of responsibility, Leon intensified into a tropical storm and was assigned the international name Noul by JMA. Noul would make landfall between Quảng Trị and Thừa Thiên-Huế provinces in September 18 before degenerating into a remnant low over Thailand later that day.

Tropical Storm Noul (Leon)
Tropical storm (JMA scale)
Tropical storm (SSHWS)
Severe Tropical Storm Noul approaching Vietnam on September 17
FormedSeptember 15, 2020
DissipatedSeptember 19, 2020
Highest winds10-minute sustained: 85 km/h (50 mph)
1-minute sustained: 95 km/h (60 mph)
Lowest pressure992 hPa (mbar); 29.29 inHg
Fatalities18 total
Damage$175.2 million (2020 USD)
Areas affectedLaos, Thailand, Myanmar, Philippines, Vietnam, Cambodia
Part of the 2020 Pacific typhoon season

Noul caused six deaths and losses of US$175.2 million in Vietnam.[1] In Cambodia, Noul killed 12 people, in which 8 of them are killed by lightning strike on Battambang Province, 3 of them drowned in Preah Sihanouk and Koh Kong provinces, and a person from Pailin Province is missing and presumed dead.[2]

Meteorological history
Map plotting the track and the intensity of the storm, according to the Saffir–Simpson scale

On the morning of September 15, the JTWC issued a tropical cyclone formation alert for a tropical system forming in the Philippine Sea.[3] Later that day, the JMA upgraded the system to a tropical depression, with the JTWC following suit later at 15:00 UTC as they issued their first warning on the system as Tropical Depression 13W.[4] Since the depression formed inside of the Philippine Area of Responsibility (PAR), the PAGASA immediately issued a severe weather bulletin on the storm and named the system Leon.[5] At 21:00 on September 16, the storm left the PAR and PAGASA issued its final warning on the system.[6] At 03:00 UTC September 18, Noul made landfall between Quảng Trị and Thừa Thiên-Huế provinces. At 9:00 UTC, the JTWC issued its final warning on the system.[7] After being downgraded to a low pressure area (LPA), Noul followed a westward path and emerged in the Indian Ocean.

Preparation and impacts

A few days before the storm hit Vietnam, the Vietnamese government closed three airports and evacuated more than one million people in the affected areas.[8][9][10] Noul damaged homes and knocked down trees and power lines in Hue, Vietnam.[11] Heavy precipitation amounts peaking at 310 mm (12.20 inches) fell in Da Nang.[12] The storm caused 6 deaths and 705 billion đồng (US$30.4 million) in damage.[13][14][15]

See also

References
  1. http://www.xinhuanet.com/english/2020-09/20/c_139382859.htm
  2. "Tropical storm Noul leaves 11 dead in Cambodia - it's havoc in South East Asia". The Star. ASEANPLUS NEWS. 22 September 2020. Retrieved 9 October 2020.
  3. "Tropical Cyclone Formation Alert (90W)". Joint Typhoon Warning Center. 2020-09-15. Archived from the original on 2020-09-15. Retrieved 2020-09-15.CS1 maint: unfit URL (link)
  4. "Tropical Depression 13W (Thirteen) Warning No. 1". Joint Typhoon Warning Center. 2020-09-15. Archived from the original on 2020-09-15. Retrieved 2020-09-15.CS1 maint: unfit URL (link)
  5. "Severe Weather Bulletin #1 for Tropical Depression "Leon"" (PDF). PAGASA. Archived from the original on 2020-09-15. Retrieved 2020-09-15.CS1 maint: unfit URL (link)
  6. "Severe Weather Bulletin #5-FINAL for Tropical Storm "Leon"" (PDF). PAGASA. 2020-09-16. Archived from the original on 2020-09-16. Retrieved 2020-09-16.CS1 maint: unfit URL (link)
  7. "Tropical Storm 13W (Noul) Warning No. 12". Joint Typhoon Warning Center. 2020-09-18. Archived from the original on 2020-09-18. Retrieved 2020-09-18.CS1 maint: unfit URL (link)
  8. "Bão số 5 tăng tốc, hơn 1 triệu dân phải sơ tán". Báo Công an nhân dân điện tử.
  9. "Storm Noul shuts down central Vietnam airports". VnExpress. 17 September 2020. Retrieved 17 September 2020.
  10. "Vietnam plans to evacuate 1.1 million in storm's path: Media". The Straits Times. 17 September 2020. Retrieved 17 September 2020.
  11. "Tropical Storm Noul pounds Vietnam;one dead, dozens injured". Al Jazeera. September 18, 2020. Retrieved September 18, 2020.
  12. Maura Kelly (September 18, 2020). "Noul turns deadly while making landfall in Vietnam". Accuweather. Retrieved September 18, 2020.
  13. "6 người chết do bão Noul" (in Vietnamese). VnExpress. 20 September 2020. Retrieved 20 September 2020.
  14. "Cơn lũ đi qua, vùng cao Quảng Nam bị thiệt hại gần 200 tỉ đồng" (in Vietnamese). Lao Động. 20 September 2020. Retrieved 20 September 2020.
  15. "Vì sao hàng trăm cột điện tại Thừa Thiên Huế gãy đổ trong bão số 5?". Thứ Ba. 22 September 2020. Retrieved 4 October 2020.
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