词条 | Tropical Storm Bolaven (2018) |
释义 |
| Name=Tropical Storm Bolaven (Agaton) | Year=2018 | Basin=WPac | Image location=Bolaven 2018-01-03 0605Z.jpg | Image name=Tropical Storm Bolaven at peak intensity on January 3 | Formed=December 29, 2017 | Dissipated=January 4, 2018 | 10-min winds=35 | 1-min winds=30 | Pressure=1002 | Fatalities=3 total | Damages=11.1 | Areas=Caroline Islands, Philippines, Central Vietnam | Hurricane season=2017 and 2018 Pacific typhoon seasons }} Tropical Storm Bolaven, known in the Philippines as Tropical Storm Agaton, was an early-season tropical cyclone that affected southern Philippines in January 2018. The system also spanned two calendar years, making it part of both the 2017 and 2018 seasons. The first named storm of the 2018 Pacific typhoon season,[1] Bolaven formed as a tropical depression near Palau on December 29, 2017. The system moved westward and made landfall over Northeastern Mindanao on January 1, 2018. After traversing the Philippine islands, the system developed into a named tropical storm on January 3. However, Bolaven weakened back to a tropical depression just a day later and dissipated soon after. The third system to affect southern Philippines in as many weeks, Bolaven brought heavy rains and floods to areas that had already suffered severe effects from tropical storms Kai-tak and Tembin. Transport was greatly disrupted, with rough seas stranding over 2,000 people in various ports, and bus services cancelled due to floods. A total of three deaths were recorded to have occurred due to Bolaven. Meteorological history{{storm path|Bolaven 2018 track.png}}Forming as part of the 2017 Pacific typhoon season, the Japan Meteorological Agency (JMA) began tracking on a weak tropical depression that had developed about 172 km (107 mi) to the south-southwest of Palau on December 30, 2017.[2][3] By January 1, 2018, the PAGASA followed suit and gave the local name Agaton.[4] On 12:00 UTC of the same day, the JMA started issuing advisories on the system,[5] while the Joint Typhoon Warning Center (JTWC) issued a Tropical Cyclone Formation Alert.[6] Six hours later, the JTWC upgraded the system to a tropical depression and gave the designation of 01W.[7] Enhanced animated satellite imagery depicted a consolidating system with deep convection obscuring its low-level circulation center.[8] Six hours later, the storm's center became partially exposed with some deep convection being sheared due to a slight increase in wind shear.[9] By 18:00 UTC of January 2, the system was already located in an area of low to moderate shear as the storm emerged to the South China Sea.[10] Despite the JTWC already predicting a weakening trend, the JMA finally upgraded the system to a tropical storm, naming it Bolaven, the first named storm of the season.[11] Deep convection remained disorganized but persistent throughout the day as its LLCC became aforementioned.[12] Despite satellite imagery depicted some flaring convection,[13] the JMA issued its final advisory on Bolaven as it weakened back to a tropical depression early on January 4.[14] The JTWC followed suit three hours later, after Bolaven's LLCC became fully exposed, with deteriorating convection.[15] The JMA, however, continued tracking Bolaven's remnants until it fully dissipated on 06:00 UTC of the same day, just off the Vietnamese coast. Preparations and impactPhilippinesAgaton is the third of three consecutive storms that hugely impacted the lower half of the country after storms Kai-tak (Urduja) and Tembin (Vinta). On January 1, immediately after the PAGASA began issuing advisories, Public Storm Warning Signal #1 were put up in seventeen provinces, mostly in the Caraga region and Davao Region.[16] Later, the island of Bohol was placed in a "high red alert" due to potential flooding, prompting 3 municipal local government units to order mandatory evacuation for residents.[17] As the storm moved further west, Signal #1 was extended in lower provinces of Visayas, Zamboanga Peninsula and the island of Palawan, also mentioning that all areas placed under the signal would experience "moderate to heavy" rains within 24 hours.[18] On January 2, sea vessels were barred from leaving Cebu province while Mahiga creek began to overflow.[19] About 2,300 passengers were stranded in various ports while 34 sea vessels including 66 rolling cargoes were suspended.[20] Negros Oriental also experienced canceled bus trips as the storm traversed the southern part of the country.[21] Roughly 200 houses in Mandaue City were flooded.[22] In Misamis Oriental, 23 families composing about 132 individuals were forced to evacuate due to flooding while some schools were announced suspended for January 3.[22] Three people have been killed by the storm while total damages were recorded up to Php554.7 million (US$11.1 million).[23]See also{{portal|Tropical cyclones}}
Notes1. ^The system formed in December 2017; however, it was not named until 2018 and used 2018's naming scheme. 2. ^https://www.webcitation.org/6w7Qn2Hl5 3. ^https://www.webcitation.org/6w7RRHMFv 4. ^{{cite web|title=Storm Signal No. 1 raised in several areas as LPA turns into depression|url=https://newsinfo.inquirer.net/956694/td-agaton-pagasa|date=January 1, 2018|publisher=Inquirer|author=Jhoanna Ballaran}} 5. ^{{cite web|title=RSMC Tropical Cyclone Adviosry TD|url=https://www.webcitation.org/6w9G9rdWN|date=January 1, 2018|archivedate=January 1, 2018|agency=Japan Meteorological Agency}} 6. ^https://www.webcitation.org/6w9GoGhrZ 7. ^{{cite web|title=Tropical Depression 01W (One) Warning Nr 001|url=https://www.webcitation.org/6wAQehJzZ|date=January 1, 2018|archivedate=January 2, 2018|publisher=Joint Typhoon Warning Center}} 8. ^{{cite web|title=Prognostic Reasoning for Tropical Depression 01W (One) Warning Nr 01|url=https://www.webcitation.org/6wARZbdNV|date=January 1, 2018|archivedate=January 2, 2018|publisher=Joint Typhoon Warning Center}} 9. ^{{cite web|title=Prognostic Reasoning for Tropical Depression 01W (One) Warning Nr 02|url=https://www.webcitation.org/6wARVZA9e|date=January 2, 2018|archivedate=January 2, 2018|publisher=Joint Typhoon Warning Center}} 10. ^{{cite web|title=Prognostic Reasoning for Tropical Depression 01W (One) Warning Nr 05|url=https://www.webcitation.org/6wC7Bld3F|date=January 2, 2018|archivedate=January 3, 2018|publisher=Joint Typhoon Warning Center}} 11. ^{{cite web|title=RSMC Tropical Cyclone Adviosry TS 1801 BOLAVEN (1801) UPGRADED FROM TD|url=https://www.webcitation.org/6wC5tGTkM|date=January 3, 2018|archivedate=January 3, 2018|agency=Japan Meteorological Agency}} 12. ^{{cite web|title=Prognostic Reasoning for Tropical Depression 01W (Bolaven) Warning Nr 07|url=https://www.webcitation.org/6wC74xuWm|date=January 3, 2018|archivedate=January 3, 2018|publisher=Joint Typhoon Warning Center}} 13. ^{{cite web|title=Prognostic Reasoning for Tropical Depression 01W (Bolaven) Warning Nr 09|url=https://www.webcitation.org/6wDq9jKUB|date=January 3, 2018|archivedate=January 4, 2018|publisher=Joint Typhoon Warning Center}} 14. ^{{cite web|title=RSMC Tropical Cyclone Adviosry TD DOWNGRADED FROM TS 1801 BOLAVEN (1801)|url=https://www.webcitation.org/6wDpKiQLj|date=January 4, 2018|archivedate=January 4, 2018|agency=Japan Meteorological Agency}} 15. ^{{cite web|title=Tropical Depression 01W (Bolaven) Warning Nr 010|url=https://www.webcitation.org/6wDputLB4|date=January 4, 2018|archivedate=January 4, 2018|publisher=Joint Typhoon Warning Center}} 16. ^{{cite web|title=LPA now Tropical Depression Agaton, Signal No. 1 up in 17 areas|url=http://www.gmanetwork.com/news/news/nation/638249/lpa-now-tropical-depression-agaton-signal-no-1-up-in-17-areas/story/|date=January 1, 2018|publisher=GMA News}} 17. ^{{cite web|title=Bohol on high alert ahead of Tropical Depression Agaton|url=https://www.rappler.com/nation/192687-massive-flooding-bohol-towns-agaton|date=January 1, 2018|publisher=Rappler|author=Michael O. Ligalig}} 18. ^{{cite web|title='Agaton' threatens Caraga; more areas under signal no. 1|url=http://news.abs-cbn.com/news/01/01/18/agaton-threatens-caraga-more-areas-under-signal-no-1|date=January 1, 2018|publisher=ABS CBN}} 19. ^{{cite web|title=Sea travel from Cebu banned as ‘Agaton’ lashes province|url=https://newsinfo.inquirer.net/956808/breaking-news-cebu-agaton-tropical-depression-bohol-sea#ixzz531RAxb5F |date=January 2, 2018|publisher=Inquirer}} 20. ^{{cite web|title=More than 2,000 passengers stranded due to ‘Agaton’|url= http://www.sunstar.com.ph/manila/local-news/2018/01/02/more-2000-passengers-stranded-due-agaton-582023|date=January 2, 2018|publisher=Sunstar Philippines}} 21. ^{{cite web|title=Negros Oriental trips cancelled due to ‘Agaton’|url=http://www.sunstar.com.ph/cebu/local-news/2018/01/02/negros-oriental-trips-cancelled-due-agaton-582017|date=January 2, 2018|publisher=Sunstar Philippines}} 22. ^1 {{cite web|title=‘Agaton’ leaves 200 houses in Mandaue City inundated|url=http://www.sunstar.com.ph/cebu/local-news/2018/01/02/agaton-leaves-200-houses-mandaue-city-inundated-582019|date=January 2, 2018|publisher=Sunstar Philippines}} 23. ^{{cite web|url=http://www.ndrrmc.gov.ph/attachments/article/3276/SitRep_No_13_re_Preparedness_Measures_and_Effects_of_TD_Agaton_as_of_0800H_22Jan2018.pdf|title=SitRep No. 13 re Preparedness Measures and Effects of Tropical Depression "AGATON"|date=January 22, 2018}} References{{reflist|2}}External links{{Commons category|Tropical Storm Bolaven (2018)}}
7 : 2017 Pacific typhoon season|2018 disasters in the Philippines|2018 Pacific typhoon season|December 2017 events in the Philippines|January 2018 events in the Philippines|Typhoons in the Philippines|Western Pacific tropical depressions |
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