
Bangkok and six Central provinces have been placed on alert for high tides from August 10–17, with rising river and canal levels expected to threaten low-lying communities between 6pm and 9pm.
Department of Disaster Prevention and Mitigation (DDPM) director-general Thiraphat Katchamat said the warning followed Announcement No. 10/2026, issued by the Royal Thai Navy’s Hydrographic Department on August 7.
The announcement covers water levels in the Chao Phraya River around Phra Chulachomklao Fort and nearby areas.
High sea levels during the warning period could cause water to overflow banks and raise levels in rivers and canals, the DDPM said.
Water may enter low-lying riverside and canalside areas, particularly communities outside flood embankments and locations without permanent flood-protection structures.
The Central Disaster Prevention and Mitigation Command has instructed Bangkok and the six provinces to closely monitor conditions and inform residents when high tides are expected.
Six Central provinces placed under watch
The areas advised to monitor the situation are:
Provincial authorities have also been asked to notify government agencies and private operators working along rivers and canals.
These include contractors carrying out riverbank-protection work and operators of floating restaurants, as well as residents living beside waterways and in low-lying risk areas.
Local authorities have been instructed to prepare disaster-response machinery and deploy operational teams to vulnerable locations so assistance can be provided immediately if flooding occurs.
Residents in at-risk areas should closely follow official updates and remain alert during the evening high-tide periods.
Warnings are available through the THAI DISASTER ALERT application. Emergencies and requests for assistance can be reported through the LINE account “ปภ.รับแจ้งเหตุ1784” or the 1784 disaster hotline, which operates around the clock.