BANGKOK — 29 August 2026, Thailand’s Department of Disaster Prevention and Mitigation (DDPM), warned 51 provinces to closely monitor the risk of flash floods, forest runoff and inundation from 29 August to 2 September, as rainfall is expected to increase across the country.
The Central Disaster Prevention and Mitigation Command (CDPMC), under the DDPM, has been monitoring weather conditions and the situation with relevant agencies.
The National Disaster Warning Center has issued warnings for 51 provinces, particularly high-risk areas in the North, Northeast and East.
In the North, the high-risk provinces are Mae Hong Son, Chiang Mai, Chiang Rai and Tak.
In the Northeast, they are Bueng Kan, Nakhon Phanom and Sakon Nakhon, while Chanthaburi and Trat are considered high-risk areas in the East.
Authorities have instructed local agencies to disseminate warnings through all available channels, including warning towers and the Cell Broadcast system.
They have also been told to coordinate with community leaders to translate warning information into local or ethnic languages so residents in all communities can understand the alerts and respond quickly.
Flood situation improving in some areas
The DDPM said floodwaters in Nan province had fallen below the riverbank and the province had entered the recovery phase.
Nearly 100% of cleanup operations, known as Big Cleaning, have been completed, while public utilities have returned to normal. Authorities have also begun providing initial compensation and financial assistance to families of people who died in the floods.
In Chiang Rai, some districts remain affected by standing water. Officials are monitoring water levels through CCTV systems around the clock.
Mae Hong Son has adopted proactive measures by warning residents in high-risk areas and using Cell Broadcast to prepare for possible floods and landslides.
In Tak, water levels in the Moei and Wang rivers are trending downward and have stabilized. Authorities are conducting damage assessments and distributing relief bags to affected residents.
In Bueng Kan, authorities are monitoring rising water levels in the Mekong River. Although the river remains below its banks, rising water has already affected some agricultural areas.
Officials have accelerated the installation of water pumps and prepared sandbags as a precaution.
Authorities ordered to remain on alert 24 hours
The CDPMC has instructed DDPM offices in high-risk areas to coordinate closely and prepare for possible flooding and landslides from 29 August to 2 September.
Officials have been ordered to maintain 24-hour monitoring. If the risk becomes severe, they must coordinate with the National Disaster Warning Center to issue urgent alerts through Cell Broadcast, warning towers and community announcement systems.
Local officials have also been instructed to work with community leaders to translate warnings into local languages.
Authorities have been told to pre-position personnel, disaster-response machinery and rescue equipment, as well as prepare evacuation centers and conduct evacuation drills with local administrative organizations.
Vulnerable groups are to be prioritized during any evacuation.
Officials have also been instructed to clear obstructions from waterways, inspect the stability of electricity poles and trim tree branches that could pose a danger.
Provincial authorities must hold regular situation-monitoring meetings and continuously report developments to the DDPM.
Members of the public can follow disaster updates through Facebook: กรมป้องกันและบรรเทาสาธารณภัย DDPM, X: @DDPMNews, and Line: @1784DDPM.
Those affected by disasters can report incidents and request assistance through the DDPM’s 1784 hotline, available 24 hours a day.