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Tropical Storm Noul (2020)

From Wikipedia, the free encyclopedia
For other storms of the same name, see List of storms named Noul and List of storms named Leon.
Tropical Storm Noul (Leon)
Tropical Storm Noul approaching Vietnam on September 17
Meteorological history
FormedSeptember 15, 2020
DissipatedSeptember 18, 2020
Tropical storm
10-minute sustained (JMA)
Highest winds85 km/h (50 mph)
Lowest pressure992 hPa (mbar); 29.29 inHg
Tropical storm
1-minute sustained (SSHWS/JTWC)
Highest winds95 km/h (60 mph)
Lowest pressure990 hPa (mbar); 29.23 inHg
Overall effects
Fatalities18 total
Damage$175.2 million
Areas affectedLaos, Thailand, Myanmar, Philippines, Vietnam, Cambodia
IBTrACSEdit this at Wikidata
Part of the 2020 Pacific typhoon season

Tropical Storm Noul, also known in the Philippines as Tropical Storm 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.

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

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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

On September 14 at 12:00 UTC, the Japan Meteorological Agency (JMA) began issuing warnings on a tropical depression as it was moving west-northwest.[3] The system continued organizing, and on September 15 at 02:00 UTC, the Joint Typhoon Warning Center (JTWC) issued a Tropical Cyclone Formation Alert on the system as it was located over the Philippines.[4] The system was in a favorable environment, though strengthening was limited due to the disorganized structure.[5] Convection, albeit disorganized, began covering the low-level circulation, and at 15:00 UTC, the JTWC upgraded the system to a tropical depression, giving it the unofficial designation of 13W as it was located approximately 159 nautical miles (294 km; 183 mi) southwest of Manila. Sea surface temperatures in the area ranged from 30–32 °C (86–90 °F).[6] At the same time, the PAGASA began issuing severe weather bulletins on the depression, giving it the local name Leon.[7] 3 hours later at 18:00 UTC, the JMA upgraded the depression to a tropical storm, assigning it the name Noul.[8] At 21:00 on September 16, the storm left the PAR and PAGASA issued its final warning on the system.[9] 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.[10] After being downgraded to a low pressure area (LPA), Noul followed a westward path and emerged in the Indian Ocean.[citation needed]

Preparation and impacts

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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.[11][12][13] Noul damaged homes and knocked down trees and power lines in Hue, Vietnam.[14] Heavy precipitation amounts peaking at 310 mm (12.20 inches) fell in Da Nang.[15] The storm caused 6 deaths and 705 billion đồng (US$30.4 million) in damage.[16][17][18]

See also

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References

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  1. ^ "Typhoon kills 3 in central Vietnam - Xinhua | English.news.cn".
  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. ^ "Warning and Summary 141200". wis-jma.go.jp. Japan Meteorological Agency. September 14, 2020. Archived from the original on September 15, 2020. Retrieved April 20, 2021.
  4. ^ "Tropical Cyclone Formation Alert (90W)". metoc.navy.mil. Joint Typhoon Warning Center. 2020-09-15. Archived from the original on 2020-09-15. Retrieved 2020-09-15.{{cite web}}: CS1 maint: unfit URL (link)
  5. ^ "RSMC Tropical Cyclone Prognostic Reasoning no. 1 for TD Located at 12.3N 120.4E". wis-jma.go.jp. Japan Meteorological Agency. September 15, 2020. Archived from the original on September 15, 2020. Retrieved April 20, 2021.
  6. ^ "Prognostic Reasoning for Tropical Depression 13W (Thirteen) Warning NR 001". wis-jma.go.jp. Joint Typhoon Warning Center. September 16, 2020. Archived from the original on September 16, 2020. Retrieved April 20, 2021.
  7. ^ "Severe Weather Bulletin #1 for Tropical Depression "Leon"" (PDF). pubfiles.pagasa.dost.gov.ph. PAGASA. September 15, 2020. Archived from the original (PDF) on September 15, 2020. Retrieved April 20, 2021.
  8. ^ "RSMC Tropical Cyclone Advisory TS 2011 Noul (2011) Upgraded from TD". wis-jma.go.jp. Japan Meteorological Agency. September 15, 2020. Archived from the original on September 16, 2020. Retrieved April 20, 2021.
  9. ^ "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.{{cite web}}: CS1 maint: unfit URL (link)
  10. ^ "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.{{cite web}}: CS1 maint: unfit URL (link)
  11. ^ "Bão số 5 tăng tốc, hơn 1 triệu dân phải sơ tán". Báo Công an nhân dân điện tử.
  12. ^ "Storm Noul shuts down central Vietnam airports". VnExpress. 17 September 2020. Retrieved 17 September 2020.
  13. ^ "Vietnam plans to evacuate 1.1 million in storm's path: Media". The Straits Times. 17 September 2020. Retrieved 17 September 2020.
  14. ^ "Tropical Storm Noul pounds Vietnam;one dead, dozens injured". Al Jazeera. September 18, 2020. Retrieved September 18, 2020.
  15. ^ Maura Kelly (September 18, 2020). "Noul turns deadly while making landfall in Vietnam". Accuweather. Retrieved September 18, 2020.
  16. ^ "6 người chết do bão Noul" (in Vietnamese). VnExpress. 20 September 2020. Retrieved 20 September 2020.
  17. ^ "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.
  18. ^ "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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