Now downgraded to an active low-pressure cell, Toraji covers the lower South and is expected to move through the Andaman Sea on Wednesday, said the Meteorological Department in its 13th warning about the storm, issued at 11am.
The tropical storm was previously downgraded to a depression when it made landfall on Vietnam over the weekend.
The department said the influence of the low-pressure cell would unleash heavy rains on Surat Thani, Nakhon Si Thammarat, Phatthalung, Songkhla, Ranong, Phangnga, Phuket, Krabi, Trang and Satun for one day. People are advised to brace for the severe conditions.
The department added that the moderate northeast monsoon across the Gulf of Thailand is generating moderate wind-influenced waves about 2 metres