REGIONAL SUMMARY:
During the thirty-second week of 2025, the ASEAN region recorded 30 disaster events, including droughts, floods, landslides, storms, and wind-related incidents affecting Indonesia, Myanmar, Philippines, Thailand, and Viet Nam. Additionally, disaster situations from previous weeks, driven by the combined effects of the Southwest Monsoon and Tropical Cyclones WIPHA, CO-MAY, and FRANCISCO, continued to impact Lao PDR and the Philippines. In Indonesia, Badan Nasional Penanggulangan Bencana (BNPB) reported these events across Aceh, Banten, West Java, Central Java, East Java, Central Kalimantan, Maluku, Central Sulawesi, North Sulawesi, and North Sumatra. In Myanmar, Department of Disaster Management (DDM) reported landslides in Kayin. In the Philippines, alongside impacts from Southwest Monsoon and TCs WIPHA, CO-MAY, and FRANCISCO, the Philippines’ National Disaster Risk Reduction and Management Council (NDRRMC) also reported flooding and strong winds in Region XII. Meanwhile, in Thailand, the Department of Disaster Prevention and Mitigation (DDPM) reported storms and strong winds in Kamphaeng Phet and Maha Sarakham. Lastly, in Viet Nam, the Viet Nam Disaster and Dyke Management Authority (VDDMA) reported flooding and storms over Lam Dong and Dong Thap
HIGHLIGHT:
In the Philippines, NDRRMC reported that, as of 11 August, the combined effects of the Southwest Monsoon and Tropical Cyclones WIPHA, FRANCISCO, and CO-MAY continue to affect the country, with 69 areas still experiencing flooding across Regions 1, 3, and CALABARZON, while floodwaters have subsided in 1,407 areas and are receding in 34 others nationwide. A total of 263 cities and municipalities have declared a state of calamity. According to NDRRMC, approximately 2.7M families (9.7M people) have been affected across Regions 1, 2, CAR, 3, NCR, CALABARZON, MIMAROPA, 5, 6, NIR, 7, 9, 10, 11, 12, CARAGA, and BARMM. Around 28.5K individuals remain displaced in 265 evacuation centres, while 38.3K people are staying with relatives or outside designated centres. The reported toll includes 37 lives lost (32 pending validation), 32 injured (8 pending validation), and 8 missing (4 pending validation). Damages are estimated at USD 369.5 million while approximately USD 23.2 million worth of assistance has been provided by OCD, DSWD, LGUs, NGOs, and other partners.
HYDRO-METEO-CLIMATOLOGICAL:
For the past week, data from the ASEAN Specialised Meteorological Centre (ASMC) indicated high 7-day average rainfall concentrated across Brunei Darussalam, Cambodia, Indonesia, Lao PDR, Malaysia, Myanmar, the Philippines, Singapore, Thailand, and Viet Nam. Tropical Cyclone PODUL, currently located over the western Pacific Ocean, is forecasted to track westward toward China and is expected to influence Southwest Monsoon conditions in the ASEAN region (PAGASA, JTWC).
GEOPHYSICAL:
Three (3) significant earthquakes (M>5.0) were recorded by Indonesia’s Badan Meteorologi, Klimatologi, dan Geofisika (BMKG) and the Philippines Institute of Volcanology and Seismology (PHIVOLCS). Mount Semeru (alert level II), Ili Lewotolok (alert level IV), Ibu (alert level II), and Dukono (alert level II) in Indonesia, and Kanlaon (alert level 2), Taal (alert level 1), Mayon (alert level 1), and Bulusan (alert level 1) volcanoes in the Philippines reported recent volcanic activity according to Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG) and PHIVOLCS.
OUTLOOK:
According to the ASEAN Specialised Meteorological Centre (ASMC), for the coming week, wetter conditions are predicted over central and eastern Mainland Southeast Asia, with the highest likelihood over southern Mainland Southeast Asia, as well as over much of the Maritime Continent. For the regional assessment of extreme weather events, there is a small increase in chance of very heavy rainfall to occurs over eastern half of the equatorial region, central Thailand, southern Lao PDR, central and southern tip of Viet Nam. Additionally, there is a small increase in chance of extreme hot conditions to occurs over northern Myanmar, parts of southern Maritime Continent. ENSO neutral conditions are present.
Sources:
ASEAN Disaster Monitoring & Response System (DMRS); ASEAN Specialised Meteorological Centre (ASMC); Joint Typhoon Warning Centre (JTWC);
Indonesia: BNPB, BMKG, PVMBG;
Lao PDR: NDMO;
Myanmar: DDM, DMH;
Philippines: NDRRMC, PAGASA, PHIVOLCS;
Thailand: DDPM, TMD;
Viet Nam: VDDMA;
Various news agencies.
