Thai Meteorological Department: announcement No. 18, 28 September 05:00, the last for this event; rain left in the lower North, Central and East. This thailand flood update: the bangkok flood warning stands.
On 26 September 2026 the 11th Military Circle moved bedridden patients from an elderly care centre, Prachaniwet 2, Nonthaburi, to a shelter. Measure No. 7: prepare backup routes, vehicles, boats, hospitals.
Watch 1-2 October. Royal Irrigation Department, 25 September: a Nakhon Sawan peak about 2 October, near 2,000 cubic metres per second, not yet re-confirmed. Navy’s Hydrographic Department: the 0.96 metre tide of 28 September reaches 1.16 metres by 2 October, shortening the drain window. The table excludes dam water and rain.
The Royal Irrigation Department reported a chao phraya dam discharge of 1,950 cubic metres per second at 06:00 on 28 September, near the 2,000 cu m/sec ceiling, as this thailand flood update shows.
Large and medium reservoirs are 78% full, 16,591 million left, the Royal Irrigation Department says; thirteen dams over 80%, Sirikit 80%, 1,895 million left.
This thailand flood update covers the 26-30 September 2026 round for the Central region, the East and lower North. Check the DDPM announcement.
Bangkok rain eased, Nong Chok highest 63.0 millimetres. Drainage and Sewerage Department, 08:00 on 28 September: 81 flooded roads, 46 cleared, 35 left.
Department of Disaster Prevention and Mitigation, 06:00 on 28 September: 27 provinces including Bangkok, 151 districts, 576,449 households, 1,793,887 people.
Ministry of Public Health, 27 September: 5,512 vulnerable people in 22 affected provinces, including 251 people with disabilities and 62 bedridden patients.
On 27 September the Prime Minister asked older people, bedridden patients and vulnerable groups to shelter at Bang Khen School (Waisali Anusorn), Lak Si district.
Government announced 8 measures on 25 September for older people, people with disabilities, people housebound or bedridden and dialysis patients; no reach data yet.
On 1-2 October, families with a person with a disability, an older person or a bedridden patient should check their evacuation plan.
Need help? Call 1669, the National Institute for Emergency Medicine, and 1418, the Poh Teck Tung Foundation.
Sources:
• Thai Meteorological Department — Announcement No. 18, the final one, 28 September 2026 — https://www.tmd.go.th/warning-and-events
• Royal Irrigation Department — Water situation report, 2026 rainy season, 28 September 2026 — https://water.rid.go.th/flood/flood/daily.pdf
• Hydrographic Department, Royal Thai Navy — High and low tide tables, Naval Headquarters Station (M.R.T.), September-October 2026 — https://hydro.navy.mi.th/waterlaveltable (copy of the table used: https://dds.bangkok.go.th/public_content/files/001/0006030_1.pdf)
• Drainage and Sewerage Department, Bangkok Metropolitan Administration — Summary of main-road flood points, 28 September 2026 — https://dds.bangkok.go.th/index2.php
• Department of Disaster Prevention and Mitigation — Situation report, 28 September 2026 — https://www.disaster.go.th/home
• Ministry of Public Health — Care for vulnerable groups, 27 September 2026 — https://pr.moph.go.th
• Office of the Prime Minister — 8 measures, 25 September 2026 — https://www.thaipost.net/general-news/1076257/
• Office of the Prime Minister — Prime Minister inspects Bang Khen School shelter (Waisali Anusorn), Lak Si district, 27 September 2026 — https://www.thansettakij.com/general-news/669993
• Infantry Battalion, 11th Military Circle — Evacuation of bedridden patients, Prachaniwet 2 village, Nonthaburi, 26 September 2026 — https://siamrath.co.th/regional/324302
• National Institute for Emergency Medicine — Hotline 1669 — https://www.niems.go.th/
• Poh Teck Tung Foundation — Hotline 1418 — https://www.naewna.com/n/national-news/quality-of-life-news/82467/