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Bangkok Governor Chadchart Sittipunt signed the order on Saturday morning to designate every district in the capital a disaster area, a step that expands an initial declaration limited to Nong Chok, Suan Luang and Khan Na Yao, according to the Bangkok Post. The designation enables the Bangkok Metropolitan Administration along with other state agencies and local bodies to accelerate relief efforts and coordinate responses without procedural delays under the Disaster Prevention and Mitigation Act. Heavy rain that began Thursday afternoon has left eastern neighbourhoods particularly hard hit, with canals such as Saen Saep, Prawet, Lat Phrao and Prem Prachakorn reaching full capacity while additional runoff flows in from Pathum Thani and Nonthaburi provinces.
The Meteorological Department linked the downpours to a low-pressure system over the lower Central Plains combined with a strengthening southwest monsoon, forecasting continued heavy rain and thunderstorms through Sunday, Reuters reported. Nearly 300 millimetres have accumulated in districts including Min Buri and Klong Sam Wa since the rains started, overwhelming drainage infrastructure and flooding more than 15 major roads. Chadchart told reporters the situation poses risks to lives as well as public and private property, with those living near canals facing the greatest immediate threat, a warning echoed across multiple Thai outlets including the Nation.
All 50 districts now fall under the disaster framework after an earlier order on September 25 covered only 13 subdistricts where flooding had already disrupted travel, the Bangkok Post detailed in its coverage. A cell broadcast alert sent shortly after 9 a.m. urged residents to prepare for further rises in canal levels while authorities stepped up pumping operations even as the canal network remained full. The army has established shelters and field kitchens while schools serve as temporary accommodation, and supermarkets have seen crowds gathering supplies ahead of potential worsening conditions, according to Reuters.
Flooding has spread to 20 provinces beyond the capital including Nakhon Ratchasima, Chon Buri and Ayutthaya, where the Department of Disaster Prevention and Mitigation earlier placed the number of affected households at more than 11,000 before the latest escalation, Bernama reported. The current events have prompted comparisons to the 2011 Thailand floods that affected 66 provinces, killed more than 680 people and caused damages estimated at $40 billion according to a World Bank rapid assessment. No casualties have been reported in Bangkok so far although officials continue to monitor rising waters and have increased releases from the Chao Phraya Dam to 1,950 cubic metres per second.
Residents have been advised to move valuables and vehicles to higher ground while avoiding unnecessary travel, instructions that one condominium dweller said arrived after waters had already surrounded his building. “I wasn’t aware enough to consider relocating,” Suppakarn Julavijitphong told Reuters as he carried luggage through floodwater. Chadchart has instructed district offices to help residents document damages with before-and-after photographs to support future compensation claims, part of seven targeted measures that also address support for bedridden patients and sanitation in affected zones, the Nation Thailand reported.
The governor has emphasised that assistance must arrive promptly during the crisis and that recovery efforts should begin as soon as waters recede, a stance outlined in statements carried by CGTN. Drainage teams continue working to redirect floodwater even as forecasts indicate the low-pressure system may shift but leave unsettled weather across central Thailand into next week. The citywide declaration is expected to remain active until conditions stabilise and full assessments of infrastructure damage can be completed.
