Rama VI Dam raises red flag as Pasak River levels rise

Ayutthaya — September 28, 2026: Rama VI Dam has issued an urgent red flag warning to communities living near the Pasak River, as water levels continue to rise following increased releases from the dam. The villages of Tha Ruea, Nakhon Luang, and Phra Nakhon Si Ayutthaya have been instructed to prepare for further water level increases and move their belongings to higher ground.

Authorities expect the water to rise by an additional meter. The Pasak River's water level is already rising, overflowing into residential areas near Wat Sathu in Tha Ruea district. Ekkachai Samniang Mai, the head of the Water Allocation and Irrigation System Improvement Division, noted that 200 cubic meters of water is flowing into Rama VI Dam from the Chao Phraya River and an additional 500 cubic meters is coming from the Pasak River.

This totals around 700 cubic meters of water entering the dam, with 50 cubic meters being diverted into the Rapee Phatthana Canal and 650 cubic meters released downstream. Residents in vulnerable areas have begun to move their belongings to higher ground, following repeated warnings from authorities. The red flag at Rama VI Dam serves as a final warning to downstream communities to stay vigilant and brace for further water level rises.

While rainfall is expected to decrease, authorities remain vigilant, closely monitoring the situation at Pasak Jolasid Dam, which is currently 96% full. They anticipate needing to gradually release water over the next 1-2 days to prevent the water level from reaching critical levels. Irrigation authorities are prepared to manage both rainfall and upstream water, while continuing to issue warnings to communities at risk of flooding.

The red flag at Rama VI Dam remains in effect, urging downstream residents to prepare for potential flooding and relocate valuable possessions to higher ground.