Typhoon Bualoi,known in the Philippines as Typhoon Opong,is an active tropical cyclone in the Western North Pacific Ocean that is threatening the central portion of the Philippines,particularly the regions of Bicol and Eastern Visayas. The twentieth named storm of the 2025 Pacific typhoon season,Bualoi originated from a disturbance near north of Yap on September 22. The disturbance gradually intensified into a tropical cyclone and was given the name Opong by PAGASA. On September 23,the system attained the designation 26W by the Joint Typhoon Warning Center (JTWC) and Bualoi by the Japan Meteorological Agency (JMA). It was upgraded into a tropical storm on September 24 and was later upgraded into a severe one.
A low-pressure area (LPA) developed north of Yap in the Federated States of Micronesia on September 22.[1] It intensified into a tropical depression as it tracked west northwestward.[2] At 00:00 UTC on September 23, the system had sustained winds of 55.56 kilometres per hour (30.00 knots) as it was assessed by the JMA.[3] The disturbance later became organized over favorable environment, and the JTWC issued a TCFA at 02:00 UTC, citing a high chance of development.[4] The disturbance later entered the Philippine Area of Responsibility (PAR) at 16:00 PHT (08:00 UTC) and was given the local name Opong by PAGASA.[5] At 15:00 UTC on September 23, the JTWC designated the system as 26W as it had moderate poleward and equatorial outflow.[6] The JMA named it as Bualoi 18:00 UTC, the system shifter closer to the Philippines.[7] The JTWC later followed suit and upgraded Bualoi into a tropical storm on September 24[when?] as an increasingly organized deep convective banding over the northwestern and southern quadrants of the LLCC.[8]
Later that day, PAGASA and the JMA reclassified the system as a severe tropical storm, with satellite imagery locating it in the southwestern periphery of a subtropical high.[9][10] At 18:00 UTC, the Japan Meteorological Agency upgraded the system into a typhoon with winds of 120 kilometres per hour (65 knots) due to the influence of high sea surface temperatures and tropical cyclone heat potential among a forming central dense overcast (CDO).[11][12] Although it had a good environment, limited firmness of the storm's structure caused it to maintain its intensity as dry air circulated around the system.[13] The JTWC highlighted an expansive central dense overcast obscuring the eye and some cloud tops.[14] At 23:30 PHT (15:30 UTC) that same day, the storm made landfall on San Policarpo, Eastern Samar. PAGASA downgraded the system into a severe tropical storm as it made its second and third landfalls in the Palanas and Milagros areas, both located in Masbate, at 04:00 PHT and 05:30 PHT respectively. (20:00 UTC the former day).[15][16] Then on 08:10 PHT and 09:20 PHT, Bualoi made a fourth and fifth landfall, this time in the San Fernando and Alcantara areas, which are both situated in the province of Romblon. [17] Afterwards, the storm then made a sixth landfall over the area of Mansalay, Oriental Mindoro at 11:30 PHT. [18]
Bongbong Marcos directs the NDRRMC and concerned agencies to maximize government resources in preparation for Bualoi.
1,500 passengers were stranded in ports around 42 ports in the nation, among them 14 vessels and 780 rolling cargoes.[28] President Bongbong Marcos told numerous agencies to prepare and maximize resources for Opong in a situation meeting at the National Disaster Risk Reduction and Management Council.[29] A memorandum signed by Executive SecretaryLucas Bersamin caused all classes and work in all classes to be suspended in Sorsogon, Masbate, Northern Samar and Eastern Samar.[30] The Calabarzon Regional Disaster Risk Reduction and Management Council put its work on red alert due to the system.[31] The Metro Manila Disaster Risk Reduction and Management Council was placed in a red alert, notifying all response teams to take heightened preparedness measures.[32] The government of Oriental Mindoro ramped up preparation efforts for the system.[33] The Eastern Visayas Disaster Risk Reduction and Management Council organized a special group pertaining to the system as the council had a meeting.[34] Numerous churches in the scope of the Diocese of Legazpi were provided to house as a temporary shelter.[35] Many flights were suspended as well.[36] The Department of Agriculture urged farmers to protect and take care of their crops from the storm.[37]
Vietnam
On September 24, the National Civil Defense Steering Committee issued document No. 04/BCĐ-BNNMT that were sent to the People's Committees of coastal provinces and cities from Quảng Ninh to An Giang regarding proactive responses to Bualoi (bão số mười).[38] The provinces and cities are proactive in informing the captains and owners of vessels and boats anchored at the ports or operating at sea to take preventive measures and develop suitable production plans, ensuring safety for people and property; maintain communication to promptly handle any adverse situations that may arise; be ready with forces and means to implement rescue and emergency response work when situations occur. The documents also require localities to establish a serious watch and regularly report to the National Civil Defense Steering Committee (Ministry of Agriculture and Environment).[39]
Impact
Philippines
A total of 10 deaths were recorded due to the storm. Three died in Masbate: the first died from a falling tree, the second from drowning, and the third when a wall collapsed. Seven more deaths were recorded in the central Philippines due to strong winds and storm surge. Parts of southern Luzon recorded power outages and damages to crops and infrastructure.[40] The Wright–Taft Road section in Taft, Eastern Samar was deemed unpassable due to the storm. The municipality of Pinabacdao experienced a power interruption on September 24 which was restored. The municipalities of Mondragon, Northern Samar and Silvino Lobos also experienced power interruptions.[41] Across the country 400,000 people were evacuated.[42]
↑ "Cập nhật: Bão Bualoi - bão số 10 giật cấp 14 hướng vào Bắc Bộ"[Update: Typhoon Bualoi - Typhoon No. 10 is strong at level 12-13, gusting to level 16 towards the North - North Central]. Policy Making - Government (in Vietnamese). September 24, 2025. Retrieved September 24, 2025.
↑ "Theo dõi diễn biến, chủ động ứng phó với bão Bualoi gần Biển Đông"[Monitoring developments, proactively responding to Typhoon Bualoi near the East Sea (South China Sea)]. Báo Hà Tĩnh (in Vietnamese). September 25, 2025. Retrieved September 25, 2025.{{cite web}}: More than one of |website= and |newspaper= specified (help)
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