
In its warning issued late Monday night, the department said an active low pressure over the upper Andaman Sea and Gulf of Martaban and Myanmar would trigger torrential rains in the two provinces.
The department also forecast less rains for lower southern provinces which are still reeling from massive floodings that were caused by days of torrential rains.
The department said a strong northeast monsoon still prevails over the Gulf of Thailand and the South, causing up to 2-3 meters high in the Gulf and Andaman Sea. The department also warned people along the coasts to beware of inshore surge and warned small boats keep ashore for a few days.