Flood run-offs from Bangkok and other provinces in the Central region are moving south toward the estuaries of Chao Phraya River at a slower speed because there is a mild ocean surge, a water-management expert told a seminar in the capital yesterday.

Royol Jitdon, member of a government water-management committee, said data collected at the Chulachomklao Fort showed that the surge was 40 centimetres above sea level.

Read more: The Nation