Tropical Storm Lionrock (2021)
Meteorological history | |
---|---|
Formed | October 5, 2021 |
Dissipated | October 10, 2021 |
Tropical storm | |
10-minute sustained (JMA) | |
Highest winds | 65 km/h (40 mph) |
Lowest pressure | 994 hPa (mbar); 29.35 inHg |
Tropical storm | |
1-minute sustained (SSHWS/JTWC) | |
Highest winds | 85 km/h (50 mph) |
Lowest pressure | 989 hPa (mbar); 29.21 inHg |
Overall effects | |
Fatalities | 6 |
Damage | $47 million (2021 USD) |
Areas affected | Philippines, Vietnam, Mainland China (particularly Hainan), Hong Kong, Macau |
IBTrACS | |
Part of the 2021 Pacific typhoon season |
Tropical Storm Lionrock, known in the Philippines as Tropical Depression Lannie, was a tropical storm which caused minor damage to the
Meteorological history
On October 2 at 06:00
However, a trough associated with the disturbance crossed the
On October 7 at 09:00 UTC, the JTWC further upgraded the storm to a tropical depression, receiving the designation 22W from the agency. The system, at that time, also consolidated further while transitioning to a monsoon depression as it continued to maintain a broad center with its wind field contracting along with 25-30 knot winds occurring in its core.[15] Meanwhile, while centered over the northern Paracel Islands, the JMA reported that the system intensified to a tropical storm according to surface wind analysis and Dvorak ratings, nine hours later. The agency named the system Lionrock while the storm became stationary due to weak steering flow.[16] However, the JTWC only followed suit on the next day as it turned northward as it was steered by the southwestern periphery of a subtropical ridge located to the northeast.[17] The storm maintained this intensity before making landfall over Qionghai on 22:50 CST (14:50 UTC), further organizing its LLCC and its overall structure while located inland. It subsequently reintensified to its peak winds of 40 knots (75 km/h; 45 mph), ten minutes later.[18][19] However, it weakened slightly while over the central part of the island, although its convective banding continued to consolidate.[20]
Early on October 9, Lionrock emerged into the very warm and conducive waters of the
Preparations and impacts
Philippines
Upon the PAGASA's designation for the storm, several areas in Mimaropa, whole Visayas and northeastern Mindanao were placed under storm signal #1.[23] The weather agency also warned flash floods, heavy rains, landslides and gusty winds from Lannie as the system moved over the country.[24] Gale warnings were also in effect.[25]
Metro Manila and some provinces in Luzon, including Isabela and Cagayan experienced heavy downpours from the "trough extension" of Lannie. In Siraway, Zamboanga del Norte, some residents living in the area were evacuated due to the same effect, causing waistline floods while nearly 200 families in Pikit, Cotabato City were rescued due to rain-induced flash floods that occurred from October 3–4.[26] A family of three were also moved into safety by the Philippine Coast Guard (PCG) on October 4 when their boat sank during the high waves from the storm between Pamilacan Island and Loay, Bohol while two more fishermen were rescued by the authorities off Abacan River in Cortes.[27] In Tanjay, a man slipped into a spillway and were subsequently helped by stranded residents near the area while 50 households were evacuated to safety as a river overflowed in Bais, Negros Oriental. Landslides were also reported on Cebu City and Talisay City while vaccination activities for October 5 on Zamboanga City were canceled as a result of bad weather and its resultant flooding in houses and rice fields.[28] Five vessels and fifteen passengers in Palawan were stranded as a result of Lannie, the PCG reported on the same day.[29]
Four fatalities were already reported in the country as a result of the storm, three due to drowning in Capiz and Cebu and the other one is unknown. Damages in Western Visayas were calculated to be at ₱1.6 million (US$31,555). In total, 248 persons were displaced by Lannie and 1,701 families (8,048 individuals) were affected. 10 roadways were also disrupted and 77 seaports canceled sea operations. 19 houses and over 942.03 ha (2,327.8 acres) of farmland were damaged. Total damages from the storm were incurred at ₱12.2 million (US$241,440) as of October 7.[30][31][32][33]
Hong Kong and Macau
Despite Lionrock being far away from Hong Kong and Macau, its large windfield prompted a Strong Wind Signal No. 3 for the territories.[34][35] Further, it was upgraded to No. 8 Southeast Gale or Storm Signal on October 9 and it lasted 22 hours before being beaten by Kompasu a few days later at 23 hours and 20 minutes. In addition, Lionrock was 560 km away from Hong Kong when it triggered the issuance of Signal 8 by the HKO beating the previous record held by Nangka the year before at 450 km.[36][37][38]
On October 8, a 52-year old Frenchman was killed while his 57-year old friend was injured when their sailboats sank due to strong winds from the storm off
Mainland China
Emergency response teams with 95 vehicles, 2,471 people, 438 emergency repair vehicles and 358 generators were put on standby as Lionrock approached Hainan Island. The area's electric company also trimmed tree branches as a precaution for blackouts. 12 bus lines passing over the university town in Haikou were suspended as a result of the storm while the Haikou Crater Park were closed starting on October 8.[42][43][44] 290 drainage workers also inspected drainage facilities on Hainan on October 8 while 75 individuals from Longhua District were relocated from their houses to a safe place to ride out the storm.[45][46] Over 3,434 people from the area were evacuated while more than 20,000 fishing boats and vessels were asked to return to ports due to Lionrock.[47][48] A blue warning was issued for mainland southeastern China, on the same day.[49]
In
In Zhongshan, rainfall exceeding 100 millimetres (3.9 in) were reported on Tanzhou, Sanxiang and other places in its south while the Wugai Mountain at over 70 millimetres (2.8 in). Primary and secondary schools in some districts were closed as a result.[54] Authorities in the area performed several rescues on people being stranded in floods and those who can't evacuate themselves. Cars were also inundated by these floods. 165 people in total were rescued and 65 were evacuated to safety.[55]
Vietnam
From night of October 7 to October 8, coastal provinces from
Thailand
In Thailand, one person drowned due to high waves from Lionrock.
Notes
- ^ The Joint Typhoon Warning Center is a joint United States Navy – United States Air Force task force that issues tropical cyclone warnings for the western Pacific Ocean and other regions.[2]
- Regional Specialized Meteorological Center for the western Pacific Ocean.[12]
See also
- Weather of 2021
- Tropical cyclones in 2021
- Tropical Storm Kujira (2015) – Made landfall in a similar area in June 2015 and took a similar path
- Tropical Storm Sinlaku (2020) - Made landfall in a simar area in August 2020
References
- Aon Benfield Inc. October 2020. Archived(PDF) from the original on November 11, 2021. Retrieved November 11, 2021.
- ^ "Joint Typhoon Warning Center Mission Statement". Joint Typhoon Warning Center. 2011. Archived from the original on July 26, 2007. Retrieved July 25, 2012.
- ^ Significant Tropical Weather for the Western and South Pacific Oceans 020600Z-030600Z October 2021 (Report). United States Joint Typhoon Warning Center. 2 October 2021. Archived from the original on October 2, 2021. Retrieved 8 October 2021.
- ^ Significant Tropical Weather for the Western and South Pacific Oceans Reissued 021330Z-030600Z October 2021 (Report). United States Joint Typhoon Warning Center. 2 October 2021. Archived from the original on October 2, 2021. Retrieved 8 October 2021.
- ^ Arceo, Acor (October 3, 2021). "Tropical Depression Lannie develops amid COC filing". Rappler. Archived from the original on 2021-10-06. Retrieved 2021-10-08.
- ^ "Tropical Cyclone Bulletin #6 for Tropical Depression 'Lannie'" (PDF). PAGASA. 4 October 2021. Archived from the original (PDF) on 4 October 2021. Retrieved 4 October 2021.
- ^ Tropical Cyclone Formation Alert (Invest 92W) (Report). United States Joint Typhoon Warning Center. 2 October 2021. Archived from the original on October 2, 2021. Retrieved 4 October 2021.
- ^ Tropical Cyclone Formation Alert (Invest 92W) Cancellation (Report). United States Joint Typhoon Warning Center. 3 October 2021. Archived from the original on October 3, 2021. Retrieved 4 October 2021.
- ^ Arceo, Acor (October 5, 2021). "Tropical Depression Lannie makes last 2 landfalls in Palawan". Rappler. Archived from the original on 2021-10-05. Retrieved 2021-10-08.
- ^ Arceo, Acor (5 October 2021). "Tropical Depression Lannie starts moving away; new LPA may enter PAR". Rappler. Archived from the original on 2021-10-05. Retrieved 2021-10-08.
- ^ Tropical Cyclone Formation Alert (Invest 92W) (Report). United States Joint Typhoon Warning Center. 4 October 2021. Archived from the original on October 5, 2021. Retrieved 5 October 2021.
- ^ "Annual Report on Activities of the RSMC Tokyo – Typhoon Center 2000" (PDF). Japan Meteorological Agency. February 2001. p. 3. Archived (PDF) from the original on October 31, 2015. Retrieved July 29, 2017.
- ^ "WWJP27 RJTD 050600". Tokyo, Japan: Japan Meteorological Agency. October 5, 2021. Archived from the original on October 5, 2021. Retrieved October 5, 2021.
- ^ "Tropical Cyclone Bulletin #15-FINAL for Tropical Depression 'Lannie'" (PDF). PAGASA. 6 October 2021. Archived from the original (PDF) on 6 October 2021. Retrieved 6 October 2021.
- ^ Prognostic Reasoning for Tropical Depression 22W (Twenty Two) Warning No. 1 (Report). United States Joint Typhoon Warning Center. 7 October 2021. Archived from the original on October 7, 2021. Retrieved 7 October 2021.
- ^ "RSMC Prognostic Reasoning No.4 for Tropical Storm Lionrock (2117)". Tokyo, Japan: Japan Meteorological Agency. October 7, 2021. Archived from the original on October 8, 2021. Retrieved October 8, 2021.
- ^ Prognostic Reasoning for Tropical Storm 22W (Lionrock) Warning No. 4 (Report). United States Joint Typhoon Warning Center. 8 October 2021. Archived from the original on October 8, 2021. Retrieved 8 October 2021.
- ^ "台风"狮子山"登陆海南琼海 将联合冷空气在华南制造强风雨". m.hkwb.net. October 8, 2021. Archived from the original on October 9, 2021. Retrieved October 9, 2021.
- ^ Prognostic Reasoning for Tropical Storm 22W (Lionrock) Warning No. 6 (Report). United States Joint Typhoon Warning Center. 8 October 2021. Archived from the original on October 8, 2021. Retrieved 10 October 2021.
- ^ Tropical Depression 22W (Lionrock) Warning No. 13-FINAL (Report). United States Joint Typhoon Warning Center. 10 October 2021. Archived from the original on October 10, 2021. Retrieved 10 October 2021.
- ^ "RSMC Tropical Cyclone Advisory". Tokyo, Japan: Japan Meteorological Agency. October 10, 2021. Archived from the original on October 10, 2021. Retrieved October 10, 2021.
- ^ "23 areas under Signal No. 1 due to Tropical Depression Lannie". GMA News Online. 2021-10-04. Archived from the original on 2021-10-06. Retrieved 2021-10-06.
- ^ "24 areas under Signal No. 1 as Lannie threatens Southern Leyte". GMA News Online. Archived from the original on 2021-10-06. Retrieved 2021-10-06.
- ^ "Lannie to exit PAR in a few hours". GMA News Online. 2021-10-06. Archived from the original on 2021-10-06. Retrieved 2021-10-06.
- ^ "Panayam kay PAGASA weather specialist Chris Perez kaugnay sa Bagyong 'Lannie' | Videos". GMA News Online (in Tagalog). 2021-10-04. Archived from the original on 2021-10-06. Retrieved 2021-10-06.
- ^ Udtohan, Leo (2021-10-04). "Family rescued from capsized boat off Loay, Bohol". GMA News Online. Archived from the original on 2021-10-06. Retrieved 2021-10-06.
- ^ "Heavy rains from Lannie cause flooding in several areas". GMA News Online. 2021-10-05. Archived from the original on 2021-10-06. Retrieved 2021-10-06.
- ^ Noriega, Richa (2021-10-06). "PCG: 15 passengers, 5 vessels stranded in Palawan due to Lannie". GMA News Online. Archived from the original on 2021-10-06. Retrieved 2021-10-06.
- ^ "Infographics for Tropical Depression Lannie (October 7, 2021)". NDRRMC. October 7, 2021. Archived from the original on October 8, 2021. Retrieved October 8, 2021.
- ^ Rita, Joviland (2021-10-06). "NDRRMC verifying reported casualty in Capiz due to Lannie". GMA News Online. Archived from the original on 2021-10-06. Retrieved 2021-10-06.
- ^ "'Lannie' drenches Capiz, Iloilo City". www.pna.gov.ph. October 5, 2021. Archived from the original on 2021-10-05. Retrieved 2021-10-08.
- ^ Perez, Annie (2021-10-05). "Indian man, teen girl drown in Cebu province". ABS-CBN News. Archived from the original on 2021-10-06. Retrieved 2021-10-06.
- ^ "Tropical Cyclone Warning No. 1 for Tropical Storm Lionrock". Hong Kong Observatory. October 8, 2021. Archived from the original on October 8, 2021. Retrieved October 8, 2021.
- ^ "Tropical Cyclone Warning Number 3 for Tropical Storm Lionrock". Direcção dos Serviços Meteorológicos e Geofisicos. October 8, 2021. Archived from the original on October 8, 2021. Retrieved October 8, 2021.
- ^ a b "Tropical Cyclone Warning for Tropical Storm Lionrock by the HKO (06:45 HKT 09/Oct/2021)". Hong Kong Observatory. October 9, 2021. Archived from the original on October 8, 2021. Retrieved October 9, 2021.
- ^ "Tropical Cyclone Warning Number 3 for Tropical Storm Lionrock by SMG (2021-10-09 07:00)". Direcção dos Serviços Meteorológicos e Geofisicos. October 9, 2021. Archived from the original on October 8, 2021. Retrieved October 9, 2021.
- ^ "Kompasu to strengthen into severe tropical storm, come close to HK on Wednesday". 22 October 2021. Archived from the original on 21 October 2021. Retrieved 29 December 2021.
- ^ "One dead as scaffolding collapses on Broadwood Road". The Standard. October 8, 2021. Archived from the original on October 9, 2021. Retrieved October 8, 2021.
- ^ Chan, Erin (October 8, 2021). "One dead after monsoon triggers sailing mishap". The Standard. Archived from the original on October 8, 2021. Retrieved October 8, 2021.
- ^ "Yesterday's Weather and Radiation Level, October 8 of 2021". Hong Kong Observatory. October 8, 2021. Archived from the original on October 9, 2021. Retrieved October 9, 2021.
- ^ "海南电网启动防风防汛三级响应 迎战台风"狮子山"[图]". m.hkwb.net. October 9, 2021. Archived from the original on October 9, 2021. Retrieved October 9, 2021.
- ^ "海口12条途经大学城的公交线路暂停发班". m.hkwb.net. October 8, 2021. Archived from the original on October 9, 2021. Retrieved October 9, 2021.
- ^ "海口火山口公园8日16时起暂时闭园". m.hkwb.net. October 8, 2021. Archived from the original on October 9, 2021. Retrieved October 9, 2021.
- ^ "海口290名排水工人清晨出动巡检排水设施". m.hkwb.net. October 8, 2021. Archived from the original on October 9, 2021. Retrieved October 9, 2021.
- ^ "防御台风 海口龙华区已转移危房群众75人[图]". m.hkwb.net. October 9, 2021. Archived from the original on October 9, 2021. Retrieved October 9, 2021.
- ^ "海南2万余艘渔船陆续回港避风". hkwb.net. Archived from the original on October 9, 2021. Retrieved October 9, 2021.
- ^ "海南已紧急避险转移人口3434人". hkwb.net. October 8, 2021. Archived from the original on October 9, 2021. Retrieved October 9, 2021.
- ^ "China, Vietnam - Tropical cyclone LIONROCK (GDACS, JTWC, CMA) (ECHO Daily Flash of 8 October 2021) - China". ReliefWeb. Archived from the original on 2021-10-09. Retrieved 2021-10-09.
- ^ ""狮子山"太猛,珠海这三天降雨时长刷新纪录!". pub-zhtb.hizh.cn (in Chinese). October 10, 2021. Archived from the original on October 11, 2021. Retrieved October 11, 2021.
- ^ "珠海遭遇紅色暴雨襲城 公交停運致居民出行嚴重受限". 新浪新聞中心. October 10, 2021. Archived from the original on October 11, 2021. Retrieved October 11, 2021.
- ^ "注意绕行!珠海横琴大桥目前已封闭". pub-zhtb.hizh.cn (in Chinese). October 10, 2021. Archived from the original on October 11, 2021. Retrieved October 11, 2021.
- ^ "橫琴下村水浸嚴重已停電 (2021.10.10 13:29)". www.tdm.com.mo (in Chinese). October 10, 2021. Archived from the original on October 11, 2021. Retrieved October 11, 2021.
- ^ "中山发布暴雨红色预警,南部、中心片区停课_新闻频道_中山网". www.zsnews.cn (in Chinese). October 10, 2021. Archived from the original on October 11, 2021. Retrieved October 10, 2021.
- ^ "倾盆大雨挡不住救援的脚步_新闻频道_中山网". www.zsnews.cn (in Chinese). October 11, 2021. Archived from the original on October 11, 2021. Retrieved October 11, 2021.
- ^ "Báo cáo nhanh công tác trực ban PCTT ngày 08/10/2021". phongchongthientai.mard.gov.vn. October 8, 2021. Archived from the original on October 9, 2021. Retrieved October 9, 2021.
- ^ "Báo cáo nhanh công tác trực ban PCTT ngày 09/10/2021". phongchongthientai.mard.gov.vn (in Vietnamese). October 9, 2021. Archived from the original on October 10, 2021. Retrieved October 11, 2021.
- ^ "Báo cáo nhanh công tác trực ban PCTT ngày 10/10/2021". phongchongthientai.mard.gov.vn (in Vietnamese). October 10, 2021. Archived from the original on October 11, 2021. Retrieved October 11, 2021.
External links
- JMA General Information of Tropical Storm Lionrock (2117) from Digital Typhoon
- JMA Best Track Data of Tropical Storm Lionrock (2117) (in Japanese)
- JMA Best Track Data (Graphics) of Tropical Storm Lionrock (2117)
- JTWC Best Track Data of Tropical Storm 22W (Lionrock)
- 22W.LIONROCK from the U.S. Naval Research Laboratory