Typhoon Tembin (2017)
|Typhoon (JMA scale)|
|Category 1 (Saffir–Simpson scale)|
|Formed||December 16, 2017|
|Dissipated||December 26, 2017|
10-minute sustained: 130 km/h (80 mph) |
1-minute sustained: 150 km/h (90 mph)
|Lowest pressure||975 hPa (mbar); 28.79 inHg|
257 confirmed |
(as of December 25)
|Damage||$4.4 million (2017 USD)|
|Areas affected||Caroline Islands, Philippines, Malaysia, Vietnam|
|Part of the 2017 Pacific typhoon season|
Typhoon Tembin, known in the Philippines as Typhoon Vinta, was a deadly Tropical cyclone that impacted the southern Philippines in late December 2017. Tembin followed less than two weeks after Tropical Storm Kai-tak. The twenty-seventh named storm and eleventh typhoon of the 2017 Pacific typhoon season. Tembin was first classified as a weak tropical depression on December 16. The system gradually intensified and consolidated into a tropical storm on December 20. Tembin made landfall in Mindanao late the next day. On December 23, Tembin emerged to the South China Sea and intensified into a Typhoon early the following day. It quickly reached its peak intensity late on December 24 before it rapidly weakened due to unfavorable conditions and dissipated on December 26.
Tembin is the deadliest cyclone to hit Mindanao since Typhoon Bopha in 2012. As of December 25, Tembin caused 257 deaths, five of which were from a sinking of a Ferry due to rough seas caused by the storm.
Storm path On December 14, the Joint Typhoon Warning Center (JTWC) started to track a tropical disturbance that had developed about 620 km (386 mi) south-southeast of Chuuk State. The Japan Meteorological Agency later declared that the system had intensified into a weak tropical depression by December 16. Due to a rapid increase of deep Convection while the depression was located over in a favorable environment, the JTWC upgraded it to a "medium" chance of developing further to a tropical cyclone. Although the system did not intensify further, the JMA downgraded the system back to a Low-pressure area on December 18.
By December 20, the system re-generated back to a tropical depression and the JMA began issuing advisories. Around the same time, the JTWC issued a Tropical Cyclone Formation Alert. The PAGASA had also declared that the system had entered their area of responsibility, giving the local name Vinta. By 18:00 UTC of the same day, the JMA upgraded the depression to a tropical storm, receiving the international name Tembin, the 27th named storm of the season. The JTWC followed suit three hours later as they gave the designation of 33W, mentioning that the system had rapidly consolidated with deepening convection obscuring its low-level circulation center (LLCC).
On December 21, satellite imagery found that formative banding wrapping around Tembin's LLCC while located in a low to moderate sheared environment and warm waters of 29°C (84.2°F) as they had also upgraded the system to a tropical storm. By 12:00 UTC, the JMA upgraded Tembin to a severe tropical storm. Three hours later, microwave imagery also showed an extensive amount of deep convective banding wrapping into its center, and therefore they JTWC increased its 1-minute sustained winds to 75 km/h (45 mph). Later, the PAGASA announced that Tembin made landfall in Cateel, Davao Oriental around 17:45 UTC. Within the JTWC's next advisory on 21:00 UTC, they mentioned that feeder bands was wrapping in a Central dense overcast feature that was obscuring its LLCC. Although while Tembin traversed Mindanao, convection warmed and the storm slightly weakened as the JMA downgraded the system back to a tropical storm on 03:00 UTC of December 22. Tembin re-strengthened back into a severe tropical storm several hours later, just after making its second landfall near Balabac, Palawan. Following the course of Typhoon Linda (1997), impact in Vietnam and the Mekong Delta was supposed. As a weak late-season Tropical cyclone Tembin dissipated near Cape Ca Mau (8.4N 104.4E) on December 26.
Preparations and impact
|Lanao del Norte||135|||
|Lanao del Sur||27|||
|Zamboanga del Norte||78|||
On December 20, immediately when the PAGASA had started issuing its first advisory on Tembin (Vinta), Public Storm Warning Signal No. 1 was already raised over in Surigao Del Sur and the northern portion of Davao Oriental Province. Mayor Sara Duterte announced suspension of classes for all levels from December 21–23 in Davao City and other provinces followed suit. It was forecast that the storm would bring gusty winds ranging from 95–140 km/h (60–90 mph) over in Mindanao, and both Palawan and northern Sabah was warned to have an estimated rainfall of 125–500 mm (5–10 in), which increases the risk of mudslides and flash floods. The PAGASA had listed more provinces under Signal #1, especially to provinces such as the Compostela Valley, Agusan del Norte and Agusan del Sur as the storm moved closer. Widespread rains were expected over in the areas of eastern Mindanao and Eastern Visayas.
On December 22, 30 flights were canceled in the Mactan–Cebu International Airport as Tembin (Vinta) intensified into a tropical storm. About 200 passengers were affected from the canceled flights and were seen staying in the airport. The Ninoy Aquino International Airport had also canceled a total of 21 flights directed towards either Visayas or Mindanao. The Cebu City Disaster Risk Reduction Management Office (CCDRMO) also advised the public to delay their trips to the south and let the storm pass through before leaving their homes. About 28 vessels were not allowed to sail in some Cebu ports, which were bound for Bohol, Negros Occidental, Leyte and Mindanao, despite the area was not listed under a storm signal warning. This resulted in 1,531 passengers stranded in various ports, including 115 rolling cargoes. Ferry services were also suspended in Samal Island and much of Davao as PAGASA raised Davao del Norte to a Public Storm Signal Warning No. 2.
In the Compostela Valley, about 1,709 people were evacuated due to possible landslides and Storm surge while some towns in Davao Oriental had 5,000 individuals evacuated. The mayor of Lupon announced the suspension of work on December 22, and ordered the prepositioning of relief goods, rescue teams and equipment. A fire broke out in the town of Banaybanay due to heavy rains on 18:00 UTC of December 22. Three bridges were closed due to rising water levels in Cagayan de Oro, where 1,719 individuals were forced to evacuate. Roughly 30,000 people were either stranded in ports or stayed in evacuation centers while 22,000 people moved to higher grounds due to flooding. After the storm, on December 25, two towns in Zamboanga del Norte were under a state of calamity because of the flooding caused by the storm, whih also made several roads and bridges impassible as they were covered in mud.
According to the International Federation of Red Cross and Red Crescent Societies, about 70,000 people have either been displaced or affected by the storm. Rough and rogue seas were observed off Quezon province which resulted in a ferry accident which carried about 250 passengers which sank off Infanta, killed five people indirectly. As of December 25, 252 people were killed in the archipelago of Mindanao, of which 135 were reported in the province of Lanao del Norte. Estimated damages according to the NDRRMC so far stands at ₱219.8 million (US$4.4 million).
On December 24, Vietnamese Prime Minister Nguyễn Xuân Phúc instructed the southern provinces focus on preparing for the coming storm. So far, about 650,000 people have evacuated, especially those located in the southern provinces. Many provinces have instructed all students and workers to stay at home except for disaster response personnel. The province of Quảng Ngãi was forecast to experience heavy downpours with the Mekong Delta having about 150 mm (5.9 in) of rain while Ho Chi Minh City will be experiencing 10 cm (4 in) of rain from December 25–26. Some provinces near shorelines like Cà Mau and Bình Thuận have banned fishing vessels to go out in sea from 09:00 UTC of December 23, though 743 vessels have so far docked to safe ports. The Bà Rịa-Vũng Tàu Province had only built two evacuation plans for 36,752 individuals.
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|Wikimedia Commons has media related to Typhoon Tembin (2017).|
- JMA General Information of Typhoon Tembin (1727) from Digital Typhoon
- 33W.TEMBIN from the U.S. Naval Research Laboratory