The Meteorological Department is warning residents of eastern and southern provinces to brace themselves for heavy rains from Friday to Sunday.
In its warning issued at 5 am Friday, the department said the rains would be unleashed by influences of the southwest monsoon across the Andaman Sea and the Gulf of Thailand, which is intensifying, and by a low-pressure cell covering upper Vietnam.
The affected areas are as follows:
East: Chon Buri, Rayong, Chanthaburi, and Trat.
South: Ranong, Phangnga, Phuket, Krabi, Trang, Satun, Phetchaburi, Prachuap Khiri Khan, Chumphon and Surat Thani.
On Saturday and Sunday:
East: Chanthaburi and Trat.
South: Ranong, Phang Nga, Prachuap Khiri Khan and Chumphon.
The department said the strong winds would generate two-to-three-meter waves in the upper Andaman Sea and in the upper Gulf.
It warned all ships to proceed with caution, and small boats to stay ashore