The Department of Disaster Prevention and Mitigation (DDPM) has issued a warning for 43 provinces to monitor flash floods, sudden flooding, waterlogging, landslides, and strong winds from 28 June to 3 July 2026.
On 28 June 2026, Mr. Theeraphat Kachamat, Director-General of the Department of Disaster Prevention and Mitigation (DDPM), revealed that the Central Disaster Prevention and Mitigation Command Center (CDPMCC) has been monitoring weather conditions and risk factors. Additionally, the Meteorological Department issued Announcement No. 2 (92/2569) on 27 June 2026 at 05:00, warning of heavy to very heavy rain in Thailand and strong winds in the upper Andaman Sea, effective from 28 June to 3 July 2026.
The announcement states that between 28 June and 3 July 2026, Thailand will experience increased rainfall with heavy to very heavy rain in some areas, particularly in the Central region and the western side of the South. This is due to a monsoon trough passing through the North and upper Northeast, combined with a southwest monsoon covering the Andaman Sea, Thailand, and the Gulf of Thailand, which will strengthen and may cause flash floods and flash floods.
Meanwhile, waves and winds in the upper Andaman Sea will be quite strong from 29 June to 3 July 2026, with wave heights of 2 to 3 meters. In areas with thunderstorms, waves may exceed 3 meters. The lower Andaman Sea and upper Gulf of Thailand will have waves around 2 meters high, exceeding 2 meters in thunderstorm areas. Areas expected to experience heavy rain may face flash floods, sudden flooding, waterlogging, landslides, and strong winds during 28 June to 3 July, detailed as follows.
Areas to monitor for flash floods, sudden flooding, waterlogging, and landslides.
Areas to monitor for strong waves and winds.
Southern region: 4 provinces including
The Central Disaster Prevention and Mitigation Command Center (CDPMCC) under the DDPM has coordinated to notify 43 provinces and regional disaster prevention centers in risk areas to closely monitor local conditions and prepare accordingly. Officials are instructed to continuously track weather, rainfall, and water situations, especially at natural tourist attractions such as waterfalls and caves. If risks arise, warnings must be issued and areas closed to public access immediately.
In cases of strong waves and winds, authorities are urged to coordinate relevant agencies to issue announcements or install warning signals along coastal areas, strictly prohibiting tourists from swimming. Fishermen, boat operators, and passenger service providers must exercise heightened caution. If conditions worsen, navigation should be strictly prohibited. Personnel should monitor risk areas and provide immediate assistance if incidents occur, operating 24 hours a day.
Additionally, preparations must be made for temporary shelters to accommodate evacuees adequately. Relevant agencies, including local administrative organizations, village chiefs, and community leaders, should ensure sufficient food, drinking water, and essential supplies at shelters. Provinces are requested to publicize weather updates and official information closely, warn the public in advance, and advise them to prepare and strictly follow government instructions.
The public can follow disaster warnings via the "THA DISASTER ALERT" application, report emergencies through the "DDPM Incident Report 1784" LINE account, and contact the 24-hour emergency hotline 1784 for assistance coordination.
