DDPM Alerts 71 Provinces to Monitor Heavy Rain, Flash Floods, Mudslides, and Strong Winds

The Department of Disaster Prevention and Mitigation (DDPM) has alerted 71 provinces in the North, Northeast, Central, South, and Bangkok to be vigilant for heavy rain, flash floods, flash flooding, stagnant water, mudslides, and strong winds during 28 May to 1 June 2026.

On 29 May 2026, it was reported that Mr. Theerapat Kachamat, Director-General of the Department of Disaster Prevention and Mitigation (DDPM), stated that the Central Disaster Prevention and Mitigation Command (CDPMC) has been monitoring weather conditions and risk factors. Additionally, the Meteorological Department issued Warning No. 1 (79/2569) on 27 May 2026 at 05:00, regarding heavy to very heavy rain over Thailand and strong winds in the Andaman Sea.

The warning states that from 28 May to 1 June 2026, the South and Central regions will see increased rainfall, with heavy rain in many areas and very heavy rain in some places. The North, Northeast, and Central regions will experience heavy rain from 29 May to 1 June 2026, which may cause flash floods and flash flooding. This is due to the strong southwest monsoon covering the Andaman Sea, Thailand, and the Gulf of Thailand, along with a monsoon trough across upper Thailand. Areas expected to face heavy rain may experience flash floods, flash flooding, stagnant water, mudslides, and strong winds during 28 May to 1 June 2026, divided as follows.

Areas to monitor for flash floods, flash flooding, stagnant water, and mudslides:

• In the North, 17 provinces including Mae Hong Son, Chiang Mai, Chiang Rai, Lamphun, Lampang, Phayao, Phrae, Nan, Uttaradit, Tak, Sukhothai, Kamphaeng Phet, Phitsanulok, Phichit, Phetchabun, Nakhon Sawan, and Uthai Thani.

• In the Northeast, 20 provinces including Loei, Nong Khai, Bueng Kan, Nong Bua Lam Phu, Udon Thani, Sakon Nakhon, Nakhon Phanom, Chaiyaphum, Khon Kaen, Maha Sarakham, Kalasin, Mukdahan, Roi Et, Yasothon, Amnat Charoen, Nakhon Ratchasima, Buriram, Surin, Sisaket, and Ubon Ratchathani.

• In the Central region, 25 provinces including Kanchanaburi, Ratchaburi, Suphan Buri, Chai Nat, Sing Buri, Ang Thong, Ayutthaya, Lopburi, Saraburi, Nakhon Nayok, Prachin Buri, Sa Kaeo, Chachoengsao, Chonburi, Rayong, Chanthaburi, Trat, Phetchaburi, Prachuap Khiri Khan, Pathum Thani, Nonthaburi, Nakhon Pathom, Samut Sakhon, Samut Songkhram, and Samut Prakan.

• In the South, 9 provinces including Chumphon, Surat Thani, Nakhon Si Thammarat, Ranong, Phang Nga, Phuket, Krabi, Trang, and Satun.

Areas to monitor for strong winds: These include Ranong (Mueang Ranong, Suksamran, and Kapoe districts), Phang Nga (Ko Yao, Takua Thung, Thai Muang, Takua Pa, and Kuraburi districts), and all districts of Phuket province.

Therefore, DDPM has coordinated with 71 provinces and all regional disaster prevention centers nationwide to assign staff to continuously monitor weather conditions, rainfall, and water situations. They have deployed operational teams with disaster relief machinery to high-risk areas to promptly assist the public, especially in frequently flooded zones, to expedite water drainage and minimize impact as much as possible.

For natural tourist attractions such as caves and waterfalls, if there is risk, authorities should issue warnings and restrict access. In cases of strong winds and waves, related agencies should announce or install warning signals prohibiting swimming and inform boat operators and crews to exercise caution. If conditions worsen, a complete ban on navigation should be considered. When warnings are issued, the public is urged to strictly follow official advice.

Updates and alerts can be followed on the "THA DISASTER ALERT" application, with emergency help available via Line. "DDPM Emergency Hotline 1784" as well as the 24-hour safety hotline 1784 to coordinate assistance.

Information fromDepartment of Disaster Prevention and Mitigation (DDPM)