Flood alerts issued for parts of Surat Thani and Nakhon Si Thammarat
Mobile alerts cover Koh Samui and Tha Sala, where residents are urged to protect belongings, look after vulnerable people and follow official updates.
- Flood alerts have been issued for Koh Samui district in Surat Thani and Tha Sala district in Nakhon Si Thammarat due to continuous heavy rain.
- The alerts warn of potential flash floods, forest run-off, and standing floodwater, with specific risks of landslides in Koh Samui and overflowing canals in Tha Sala.
- Residents in vulnerable low-lying and foothill areas are advised to move belongings to higher ground and follow official updates for safety.
The Department of Disaster Prevention and Mitigation (DDPM) issued Cell Broadcast flood alerts for Koh Samui district in Surat Thani and Tha Sala district in Nakhon Si Thammarat on Thursday (November 12, 2026).
The alerts were sent in cooperation with mobile network operators AIS, True and National Telecom (NT).
Both districts face risks of flash floods, forest run-off and standing floodwater as heavy rain continues.
Koh Samui flood alert
The Koh Samui alert cited high tides and landslide risks, with low-lying areas and foothill slopes identified as vulnerable.
Flood and mudslide risks in Tha Sala
In Tha Sala, accumulated rainfall also posed risks of mudslides and overflowing waterways, particularly in low-lying areas and along canals. Residents were urged to relocate vehicles.
The warning covered areas along the Ai Khiao, Chum Khling, Kha Sat, Tha Sung, Tha Preng, Tha Phut and Klai canals, in Hua Taphan, Mokkhalan, Don Tako, Pho Thong, Tha Sala, Thai Buri, Tha Khuen, Sa Kaeo, Klai and Taling Chan subdistricts.
Residents in both districts were urged to move belongings to higher ground, guard against electric shocks, look after vulnerable people and closely follow official updates.
Those needing assistance should contact their district chief, subdistrict headmen, village heads or local authority executives and members.
The Koh Samui alert also listed community leaders as contacts for assistance.
Incidents can also be reported and assistance requested through the DDPM’s LINE account by adding LINE ID @1784DDPM, or by calling the department’s 24-hour safety hotline on 1784.
