The Thai Meteorological Department (TMD), Thailand's national weather service, published warning bulletin 14 (297/2569) on its official warnings board dated 8 November 2026. The bulletin covers 8 and 9 November and forecasts increased rain across southern Thailand, with heavy rain in many areas and very heavy rain in some places. TMD warned that accumulated rainfall could trigger flash floods and runoff, especially on hillsides near waterways and in low-lying ground.
Thai PBS, Daily News and Khaosod independently reported that the bulletin was issued at 05:00 on Sunday 8 November. This is a forecast, not a report of flooding that has already happened. Treat it as a planning notice if you are travelling, living or taking a boat in the South over the next two days.
What today's official map names
TMD's accompanying heavy-rain risk map, issued at 06:00 on 8 November and posted on its official heavy-rain page, marks three southern provinces for very heavy rain today: Nakhon Si Thammarat, Songkhla and Pattani. It marks eight more for heavy rain: Prachuap Khiri Khan (the province that includes Hua Hin), Chumphon, Surat Thani, Phatthalung, Yala, Narathiwat, Trang and Satun.
Thai PBS independently reported the same bulletin on 8 November and highlighted Nakhon Si Thammarat, Songkhla and Pattani for very heavy rain. Daily News published the full bulletin text and the same province list for 8 November.
Independent reports of TMD's day-by-day breakdown said the very-heavy zone was forecast to widen on Monday 9 November to Surat Thani, Nakhon Si Thammarat, Phatthalung, Songkhla, Pattani and Narathiwat, with heavy rain also named for Phetchaburi, Prachuap Khiri Khan, Chumphon, Yala, Ranong, Phang Nga, Phuket, Krabi, Trang and Satun. Those Monday names come from Daily News and Khaosod's 8 November coverage of the advisory, and they match the 9 November list The Nation reported from Saturday's bulletin 13. They are not printed on the official 06:00 map, which covers 8 November only.
Seas, upper Thailand and what to do next
Bulletin 14 said waves in the Gulf of Thailand and the Andaman Sea could exceed two metres in areas of thunderstorms. It advised mariners to check their routes and avoid sailing through thunderstorms.
In upper Thailand, TMD said rain was decreasing but thunderstorms could still break out in places, mainly in the west of the North and Central regions. Daily News and Khaosod quoted the bulletin as attributing the pattern to another high-pressure system, or cold air mass, from China covering upper Thailand and the South China Sea and strengthening easterly winds over Thailand and the Gulf. The Nation had described the same cause when it reported bulletin 13 on Saturday evening.
TMD asked people to plan travel and daily routines carefully during the affected period and to keep checking updates at www.tmd.go.th, by calling 0-2399-4012-13, or via the 1182 weather hotline, which runs 24 hours a day. Daily News and Khaosod reported that the bulletin said the next advisory was due at 17:00 on 8 November, so later updates may change the named provinces.
If you are driving the Gulf coast, passing through Surat Thani or travelling in the lower South, leave extra time and be cautious near hills, canals and low-lying roads. A clear spell in the morning does not mean the warning has lifted until TMD says so.