Flooding was reported during 18-21 August 2026, primarily caused by continuous heavy rainfall. This led to inundation in several areas and affected communities. Authorities monitored the situation closely and carried out response and relief operations as necessary.

The flooding occurred in nine provinces, including Phayao, Nan, and Ubon Ratchathani. Given the forecast of continued rainfall, there remains a risk of further flooding and water accumulation in vulnerable areas. Further details about the flooding and response efforts are available from the source.

No international assistance has been requested by the government or other entities.