Angthong, Ayutthaya residents warned by cell alert of possible Chao Phraya River overflow

The Department of Disaster Prevention and Mitigation (DDPM) on Thursday used mobile phone operators’ cell broadcast services to warn residents of Angthong and Ayutthaya about a possible overflow of the Chao Phraya River.

The DDPM issued the warning at 11 am via cell broadcast and SMS services from AIS, True, and NT.

The warning covered three districts in Angthong and Ayutthaya:

• Pa Mok district, Angthong: Tambon Phong Pheng and Tambon Bang Sadej
• Sena district, Ayutthaya: Tambon Ban Krathum, Tambon Hua Wiang, Tambon Ban Paeng, and Tambon Rang Jorake
• Phak Hai district, Ayutthaya: Tambon Lard Chid, Tambon Tha Din Daeng, and Tambon Kudee

The warning stated that the Chao Phraya Dam in Chainat had to increase water release to 1,000 cubic metres per second, which could affect people living outside the flood levee areas in these districts. Residents were advised to move their valuables upstairs.

The warning added that the river overflow could begin at 5 am on Friday.

Residents living outside the flood levees were urged to move their belongings upstairs and pay close attention to the elderly and bedridden patients to ensure timely evacuation.

The public was advised to monitor the situation closely and await further warnings from the authorities.

Those needing urgent assistance can call the DDPM hotline at 1784.

The DDPM successfully conducted three levels of cell broadcast tests—small, medium, and large—on May 2, 7, and 13 2025.