The monsoon trough lies across the upper Northern of Thailanad and upper Laos into upper Vietnam while the moderate southwest monsoon prevailing over the Andaman Sea, Thailand and the Gulf. Isolated heavy rains are likely in the North, the Northeast, the East and the South (west coast) regions. The moderate wind force the waves in the upper Andaman Sea and the upper Gulf up to about 2 meters high and above 2 meters high in thundershowers. In the lower Andaman Sea, the wave are likely 1 - 2 meters high and above 2 meters high in thundershowers.