REGIONAL SUMMARY:
During the thirty-second week of 2026, a total of 17 disaster events were reported across ASEAN, including droughts, floods, landslides, storms, and wind-related disasters in Indonesia, the Philippines, and Thailand. In Indonesia, Badan Nasional Penanggulangan Bencana (BNPB) reported disaster events in North Sumatra, Central Java, West Sulawesi, West Java, West Nusa Tenggara, South Sulawesi, and West Sumatra. In the Philippines, the National Disaster Risk Reduction and Management Council (NDRRMC) reported the continuing effects of the Southwest Monsoon combined with Tropical Cyclones “Luis” (from Week 31) and KUJIRA, which caused flooding, storms, landslides, and wind related disasters in Regions I, II, III, IVA, IVB, V, VI, IX, and CAR. Lastly, in Thailand, the Department of Disaster Prevention and Mitigation (DDPM) reported flooding in Nan and Chiang Mai in the Northern Region.
HIGHLIGHT:
In the Philippines, the combined effects of the enhanced Southwest Monsoon, Tropical Depression LUIS, and Tropical Cyclone KUJIRA triggered widespread flooding, landslides, and strong winds across Regions I, II, III, IVA, IVB, V, VI, IX, and CAR. According to the NDRRMC, as of 10 August 2026 at 0700H UTC+7, these disasters have affected approximately 586K people (171K families), with about 32.8K people currently displaced, of whom 21.7K are being served in 293 evacuation centres. The events resulted in 8 fatalities, 9 injuries, and 1 missing person. A total of 306 houses were damaged, including 20 totally and 286 partially damaged. In addition, 437 road sections and 27 bridges have been affected by floods, landslides, and related incidents. In response, the NDRRMOC alert status was raised to RED, while the NDRRMC activated the Inter-Agency Coordinating Cell and NDRRMC Response Clusters to coordinate ongoing response efforts. Authorities continue to intensify monitoring, search and rescue operations, evacuations, relief distribution, and clearing operations as rainfall persists across the affected regions.
HYDRO-METEO-CLIMATOLOGICAL:
During the past week, data from the ASEAN Specialised Meteorological Centre (ASMC) indicated medium to high seven-day average rainfall across areas north of the Equator. High average rainfall observed across northern and central Philippines was associated with the development of Tropical Cyclone KUJIRA, and the Enhanced Southwest Monsoon. As of this report, Tropical Cyclone PEILOU is also being monitored over the Western Pacific, approximately 3,000 km east-northeast of Extreme Northern Luzon. According to PAGASA, PEILOU is moving eastward at 35 km/h. It is not expected to have direct effect on the weather conditions in the region.
GEOPHYSICAL:
Eleven (11) 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 III), Lewotobi Laki-laki (alert level III), Ili Lewotolok (alert level II), and Ibu (alert level II) in Indonesia, and Taal (alert level 1), Mayon (alert level 2), Bulusan (alert level 1), and Kanlaon (alert level 2) 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-than-usual conditions are expected across much of the northern ASEAN region, with the highest likelihood over its southern and eastern areas. In contrast, drier-than-usual conditions are forecast across much of the southern ASEAN region. Warmer-than-usual temperatures are expected over much of ASEAN, except across most of Mainland Southeast Asia and the southern Maritime Continent. There is a slight increase in the likelihood of extreme rainfall over parts of eastern Cambodia, southern Lao PDR, eastern Thailand, and southern Myanmar. Meanwhile, a moderate increase in the likelihood of extreme hot conditions is forecast over the western and central Maritime Continent, southern Philippines, and Papua, with a slight increase across much of the rest of the Maritime Continent and parts of northern and southeastern Mainland Southeast Asia. El Niño conditions are expected to persist throughout the second half of 2026, with models indicating that conditions are very likely to become strong in August–September. These conditions are typically associated with drier-than-normal weather across much of the Maritime Continent.
Sources:
ASEAN Disaster Monitoring & Response System (DMRS); ASEAN Disaster Information Network (ADINet); ASEAN Specialised Meteorological Centre (ASMC); ASEAN Earthquake Information Centre (AEIC); Joint Typhoon Warning Centre (JTWC);
Indonesia: BNPB, BMKG, PVMBG;
Philippines: NDRRMC, PHIVOLCS, PAGASA;
Thailand: DDPM;
Various news agencies.
