Parts of Prachuap Khiri Khan and Chumphon placed on 48-hour flood watch
Four southern Thai provinces face heavy rain warnings, while water levels are falling in flood-hit Chumphon, Satun and Phuket.
- A 48-hour flood watch was issued on Friday for parts of Prachuap Khiri Khan and Chumphon due to the risk of accumulated rainfall.
- In Prachuap Khiri Khan, the watch covers specific subdistricts in the Thap Sakae, Bang Saphan, Bang Saphan Noi, and Mueang Prachuap Khiri Khan districts.
- The designated areas in Chumphon are subdistricts within the Tha Sae and Pathio districts.
- The warning was prompted by meteorological forecasts of heavy to very heavy rain, with residents advised to beware of potential flash floods.
The Hydro-Informatics Institute (Public Organization), under the Ministry of Higher Education, Science, Research and Innovation, issued a special 48-hour flood watch on Friday (October 30, 2026) for areas in Prachuap Khiri Khan and Chumphon at risk from accumulated rainfall.
In Prachuap Khiri Khan, the watch covers Khao Lan and Na Hu Kwang subdistricts in Thap Sakae district, and Kamnoet Nopphakhun, Chai Kasem, Thong Mongkhon and Ron Thong subdistricts in Bang Saphan district.
It also covers Chai Rat and Bang Saphan subdistricts in Bang Saphan Noi district, and Bo Nok subdistrict in Mueang Prachuap Khiri Khan district.
In Chumphon, the designated areas are Rap Ro and Hin Kaeo subdistricts in Tha Sae district, and Khao Chai Rat and Chum Kho subdistricts in Pathio district.
The Thai Meteorological Department also warned of heavy to very heavy rain on October 30 in Prachuap Khiri Khan, Chumphon, Surat Thani and Nakhon Si Thammarat.
Residents were advised to beware of thundershowers, heavy rain and accumulated rainfall that could cause flash floods and torrents of water from forested areas.
Water levels in the Chao Phraya basin remained above bank level following recent heavy rain and runoff, the institute reported in its October 30 update.
The Chao Phraya Dam continued to discharge 700 cubic metres per second.
Residents in low-lying areas along the river outside flood embankments, particularly in Chai Nat, Sing Buri, Ang Thong, Phra Nakhon Si Ayutthaya, Pathum Thani and Nonthaburi, were advised to monitor the situation closely.
For October 30–November 1, isolated thundershowers were forecast in parts of Thailand.
Rainfall in the South was expected to decrease but continue, with heavy rain possible in some areas.
Waves in the Gulf of Thailand and the Andaman Sea were forecast at 1–2 metres, possibly exceeding 2 metres in areas with thundershowers.
The Department of Disaster Prevention and Mitigation reported that flooding had affected 1,283 households across six districts, 29 subdistricts and 72 villages in Chumphon, Satun and Phuket.
Water levels were falling in all three provinces.
Chumphon accounted for 600 affected households in 14 subdistricts and 37 villages across the three districts of Mueang Chumphon, Pathio and Tha Sae.
In Satun, flooding affected 193 households in five subdistricts and 17 villages in Mueang Satun district.
In Phuket, 490 households were affected across 10 subdistricts and 18 villages in the two districts of Mueang Phuket and Kathu.
