On September 21, 2026, at 5:00 PM, the Lower Northeastern Meteorological Center issued Announcement No. 1 (51/2569) regarding heavy to very heavy rainfall in the lower northeastern region.

During the period from 23 to 27 September 2026, the lower northeast region will experience heavy rainfall in some areas. This is due to the low pressure and strong central Vietnamese coastline will cover.
The lower northeastern, eastern, and central regions, including Bangkok and its surrounding areas, will experience rainfall along the monsoon trough passing over upper Thailand. Meanwhile, the southwest monsoon blowing over the Andaman Sea, Thailand, and the Gulf of Thailand will intensify.

The provinces are expected to be affected by heavy rains.
September 23, 2026: Roi Et, Yasothon, Amnat Charoen, Nakhon Ratchasima, Buriram, Surin, Sisaket, and Ubon Ratchathani.
24 September 2026: Nakhon Ratchasima, Buriram, Surin, Sisaket and Ubon Ratchathani
September 25, 2026: Mukdahan, Roi Et, Sisaket, Surin, Buriram, and Nakhon Ratchasima.

Provinces expected to be affected by heavy rainfall.
September 26, 2026: Buriram and Nakhon Ratchasima
September 27, 2026: Roi Et, Yasothon, Amnat Charoen, Nakhon Ratchasima, Buriram, Surin, Sisaket, and Ubon Ratchathani.

The public is advised to be aware of the dangers from heavy to very heavy rainfall and accumulated rainfall, which may cause flash floods and landslides. Areas on slopes near waterways and low-lying areas should avoid traveling on routes prone to recurring flooding, especially low-lying areas where short-term flooding may occur. Please continue to monitor weather forecasts from the Lower Northeastern Meteorological Center during this period.