The monsoon storm had added about 116 million cubic metres of water to Thailand’s 38 major reservoirs between June 12 and 15. However, dam levels are still at only 30-40 per cent, said Somkiat Prajamwong, secretary-general for the Office of National Water Resources (ONWR). He added that heavy rainfall forecast for the Northeast, East and West of the country from June 16-21 should result in an additional 290 million cubic metres being dumped into reservoirs.
From June 12-21, the storm would add over 400 million cubic metres to national water resources, said Somkiat.
The biggest beneficiary will be the North with about 134 million cubic metres – about 70 per cent flowing into the Sirikit Dam and 13 per cent into the Bhumibol Dam. The Northeast will get about 107 million cubic metres, 23 per cent going to the Lam Pao dam and 22 per cent to the Nong Han. The western region will see about 78 million cubic metres, 37 per cent of which going to the Ratchaprapha dam. Meanwhile water resources in the eastern region will be filled with about 22.6 million cubic metres, and in the Central Region with about 7.18 million cubic metres.
Somkiat said the ONWR will alert downstream areas to the possibility of adverse impacts due to high rainfall and water levels as the rainy season progresses.