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Weakening Mangkhut will still strengthen southwest monsoon over Andaman Sea and Gulf, ONWR warns

The Temporary Crisis Centre of the Office of National Water Resources (ONWR) affirmed that Typhoon Mangkhut had weakened into a tropical storm at 63 kilometres northeast of the Chinese city of Nanning early Monday morning and would further downgrade into a depression and low-pressure cell, before moving to Yunnan on Tuesday.

However, Mangkhut’s influence would still strengthen the southwest monsoon over the Andaman Sea and the Gulf of Thailand, bringing about continuous rain and isolated heavy downpours to Thailand’s central, eastern and southern regions, said Samroeng Saengphuwong, ONWR deputy secretary-general and director of the centre. 
Thirty provinces in these regions have especially been warned of severe conditions that could cause flash flooding, the overflow of rivers and landslides, Samroeng said, adding that the North and Northeast would also get more rain with heavy downpours expected through Wednesday. 
Also reporting the water situation in the Chao Phraya-Prachin Buri-Bang Pakong river basin areas, he said the authorities were draining some water from the irrigation system linked to the Prachin Buri River and Nakhon Nayok River in order to cope with the heavy downpours predicted in the area. 
He added that the Chao Phraya eastern riverbank area must also adjust its water-draining plan – as well as its water-retention field management – so that the area could support an incoming deluge from the Nakhon Nayok River, while ensuring minimum impacts to the surrounding area.

Published : September 17, 2018

By : The Nation