The Department of Disaster Prevention and Mitigation (DDPM) has warned 51 provinces to watch for flash floods, forest flash floods, landslides, waterlogging, and strong winds from 29 August to 2 September. Local War Rooms have been established to monitor water situations around the clock and disaster machinery is prepared in high-risk areas.
On 28 August 2026 at 18:30, Mr. Theerapat Kachamat, Director-General of the Department of Disaster Prevention and Mitigation, stated that the Central Disaster Prevention and Mitigation Command Center (CDPMCC) has been monitoring weather conditions and risk factors. This follows the Meteorological Department's announcement of heavy to very heavy rain in upper Thailand (effective 29 August to 2 September 2026) in bulletin no. 2 (169/2569) issued on 27 August 2026 at 05:00.
The announcement states that from 29 August to 2 September 2026, Thailand will experience increased rainfall with heavy to very heavy showers in some areas, especially in the upper northern region, upper northeastern region, and eastern parts. The southwest monsoon winds will bring moisture as the monsoon trough shifts south across the north and upper northeast into a strong low-pressure area near the upper coast of the Socialist Republic of Vietnam and the Gulf of Tonkin. Additionally, a fairly strong southwest monsoon covers the Andaman Sea, Thailand, and the Gulf of Thailand.
Waves and winds in the upper Andaman Sea will be fairly strong, with waves 2 to 3 meters high. Areas with thunderstorms may experience waves higher than 3 meters. The lower Andaman Sea and upper Gulf of Thailand will have waves about 2 meters high, with thunderstorm areas experiencing waves above 2 meters. Areas forecasted for heavy rain may face flash floods, forest flash floods, landslides, waterlogging, and strong winds from 29 August to 2 September 2026, detailed as follows.
Areas under watch for flash floods, forest flash floods, landslides, and waterlogging.
Areas under watch for strong waves and winds.
The Central Disaster Prevention and Mitigation Command Center, under DDPM, has coordinated with 51 provinces across the north, northeast, central, and south, including regional disaster prevention centers in high-risk areas, to prepare for increased rainfall and heavy showers. Officials have been instructed to closely monitor weather conditions, rainfall amounts, and water situations, with disaster response teams and machinery stationed in vulnerable areas to provide timely assistance.
Particularly for natural tourist sites such as waterfalls and caves, if risks arise, warnings must be issued and access blocked. In cases of strong waves and winds, authorities should announce or install warning signals along the coast to strictly prohibit tourists from swimming. Fishermen, boat operators, and passenger vessel operators should be notified to exercise increased caution when navigating.
If conditions worsen, authorities should consider banning navigation entirely, maintain 24-hour monitoring in high-risk areas, and provide immediate aid to affected populations. Provinces are urged to disseminate official information closely and warn residents in vulnerable areas in advance to prepare and strictly follow official advice.
The public can monitor warnings via the "THA DISASTER ALERT" application, report emergencies on the LINE account "DDPM Emergency Report 1784," or call the emergency hotline 1784, available 24 hours, to coordinate assistance.
Information provided by Facebook.Department of Disaster Prevention and Mitigation (DDPM)