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| Typhoon Damrey | |
|---|---|
| Name | Damrey |
| Type | Typhoon |
| Year | 2017 |
| Basin | WPac |
| Formed | November 1, 2017 |
| Dissipated | November 15, 2017 |
| 10-min winds | 105 |
| 1-min winds | 140 |
| Pressure | 937 |
| Fatalities | 164 total |
| Areas | Philippines, Vietnam, Laos, Thailand, Cambodia, China |
Typhoon Damrey. Damrey was a powerful late‑season tropical cyclone that tracked across the western North Pacific Ocean in November 2017, affecting the Philippines, Vietnam, Laos, Thailand, Cambodia, and China. The storm developed in the active 2017 Pacific typhoon season, intensified into a major typhoon, and produced catastrophic flooding and landslides, provoking large‑scale disaster relief and international humanitarian aid responses.
Damrey originated from a tropical disturbance in the convergence zone near the Federated States of Micronesia and tracked westward under the influence of the subtropical ridge and a pronounced Madden–Julian Oscillation pulse that modulated convective activity. Rapid intensification occurred as the system moved over anomalously warm sea surface temperatures monitored by the National Oceanic and Atmospheric Administration and enhanced outflow associated with an upper‑level anticyclone analyzed by the Japan Meteorological Agency and the Joint Typhoon Warning Center. The cyclone reached peak intensity with estimated 1‑minute sustained winds comparable to other notable storms such as Typhoon Haiyan and Super Typhoon Meranti before making landfall on the central coast of Vietnam and subsequently weakening over the Annamite Range and into mainland Southeast Asia. Post‑landfall remnants produced prolonged rainfall across river basins monitored by the Mekong River Commission and interacted with a northeast monsoon surge analyzed by regional meteorological services including the Vietnam Meteorological and Hydrological Administration.
Prior to landfall, national agencies issued multi‑level warnings and activated emergency protocols involving the Philippine Atmospheric, Geophysical and Astronomical Services Administration, the Vietnam National Committee for Disaster Prevention and Control, and provincial authorities in Khanh Hoa Province and Ninh Thuan Province. Evacuations were ordered for coastal communities with coordination among municipal disaster offices, the International Organization for Migration and local branches of the Red Cross and Red Crescent Movement. Maritime advisories affected commercial shipping registered under flags including Panama and Liberia, while energy companies such as Petrovietnam and infrastructure operators prepared shutdowns at offshore platforms and thermal power plants to protect personnel and assets.
- Philippines: The system's precursor enhanced the southwest monsoon producing heavy rains over Luzon and the Visayas, prompting flood warnings issued by the Philippine Red Cross and causing damage to agriculture in regions including Ilocos Norte and Cagayan Valley. - Vietnam: Direct landfall caused the most severe impacts; storm surge, flash floods, and landslides affected coastal cities such as Nha Trang and rural districts in Khanh Hoa, resulting in widespread damage to rice paddies, aquaculture ponds, and urban infrastructure. The toll triggered search operations involving the Vietnam People's Army and coordination with disaster response units modeled on UN OCHA guidelines. - Laos and Thailand: Remnant rainfall exacerbated floods along tributaries feeding the Mekong River, affecting provinces such as Champasak and Chiang Rai and disrupting overland transport corridors linked to the Asian Highway Network. - Cambodia: Heavy rains led to inundation of lowlands in Prey Veng and damage to rural roads used for seasonal rice harvest transport overseen by the Food and Agriculture Organization. - China: Peripheral impacts were reported in southern provinces like Guangdong and Hainan with precautionary port closures coordinated by the China Meteorological Administration.
Post‑storm operations involved multi‑agency relief led by national disaster committees, international appeals to organizations such as UNICEF, World Food Programme, and bilateral assistance from countries including Japan and Australia. Recovery efforts focused on restoring power grids managed by utilities like EVN in Vietnam, rebuilding damaged sections of the National Highway 1A, and rehabilitating flood‑damaged rice terraces supported by technical programs from the Asian Development Bank. Public health responses addressed waterborne disease risks flagged by the World Health Organization, while reconstruction financing drew on emergency loan mechanisms from the International Monetary Fund and regional development partners.
Damrey was notable in the 2017 season for its late‑season intensity and high accumulated cyclone energy compared with other November storms such as Typhoon Kirogi in prior years. Observational datasets from the Japan Meteorological Agency and the Joint Typhoon Warning Center recorded minimum central pressure estimates and maximum sustained wind speeds that placed Damrey among the stronger November systems in the western Pacific in the 21st century. Hydrological gauges monitored by the Mekong River Commission registered peak discharges in affected catchments, and damage assessments compiled by national statistical offices and USAID indicated substantial economic losses to agriculture, fisheries, and coastal infrastructure.
Following the season, the storm name was reviewed by the ESCAP/WMO Typhoon Committee, with retirement discussions informed by impact reports submitted by affected members including Vietnam and the Philippines. Replacement names in the rotating western Pacific list were considered according to committee procedures established under World Meteorological Organization frameworks, reflecting precedents set during retirements of historic names such as those removed after Typhoon Haiyan and Typhoon Meranti.
Category:2017 Pacific typhoon season Category:Typhoons in Vietnam