Bangkok Declares Flood Disaster Across All 50 Districts as Deaths Reach About 40

Thailand's government has declared a flood disaster across all 50 districts of Bangkok, as officials reported about 40 deaths linked to the flooding. Many of those who died drowned, while several were killed by accidental electrocution, according to the government. Authorities said thousands of residents have been staying in more than 230 shelters set up across the capital.

Prime Minister Anutin Charnvirakul told reporters the wider Bangkok metropolitan area remained at risk from water flowing down from the north, and said a war room had been established to track the situation. Thailand's weather agency has forecast more heavy rain for next week. Pumping stations are running at full capacity, but officials expect it could take days for the water to drain completely.

The scale of the rainfall has overwhelmed a city built on the floodplain of the Chao Phraya River. In parts of Bangkok, about 300mm fell in roughly two days — comparable to half a year of average rainfall in London. The 1970s Khlong Chan flat compound in the north-east has become a symbol of the disaster, with images of submerged buildings and car roofs barely breaking the surface circulating widely, though authorities had drained the worst of it by Thursday.

Bangkok has long depended on canals, pumps and dikes to move water away, but concrete construction has destroyed much of that canal network. Naim Laeni, a consultant and university lecturer who co-authored a study on the city's flood resilience, said authorities underestimated rains that persisted for days rather than hours. He said the city's drainage canals can handle about 60mm an hour, rising to 80mm in upgraded sections, but that localised bursts exceeded those limits with too little recovery time between them, and that the government failed to convey how serious the situation was.

The flooding has also hit Suvarnabhumi airport, where at one point roughly half of Thai Airways' workforce could not report for work, causing thousands of bags to pile up and forcing flight cancellations. Many schools have closed, and gridlock across much of the capital has left even residents of less affected areas stuck at home. Some neighbourhoods have taken on surreal scenes, with people using inflatable paddling pools or, in one case, a floating fridge to reach their homes; one man was arrested for riding a jetski along a main road.

Scientists say South-east Asia is seeing worsening extreme floods, a trend expected to intensify as fossil fuel pollution warms the planet — hotter seas evaporate more water, and warmer air holds more moisture. Nikolaos Skliris, an ocean scientist at the University of Southampton, said maps already show a small but significant trend toward extreme rainfall in central Thailand, and that models point to it being amplified over the long term. Researchers caution it is too early to attribute these particular rains to climate breakdown without a dedicated study; the downpours came from a low-pressure system that moved from an unusually warm South China Sea across Cambodia and Vietnam before stalling over Bangkok, according to Copernicus Climate Pulse data. An abnormally strong El Niño is complicating the picture. The same weather system has battered neighbouring Myanmar, where rescuers recovered bodies after a landslide devastated the southern village of Ka Det Nge Htein, a disaster that has claimed nine lives, with eight more people missing under mud in another village, local officials said. Civil war and media restrictions imposed by the junta have made information hard to obtain and hampered aid groups.