The active monsoon trough lies across the lower North, the upper Central and the lower Northeast of Thailand while the moderate southwest monsoon prevails over the Andaman Sea, Thailand and the Gulf. Isolated heavy rain are likely in many places of country and very heavy rain are likely in the East. The moderated to rather strong wind force the waves in the upper Andaman Sea are likely 2-3 meters high and above 3 meters high in thundershowers. In the lower Andaman Sea and the upper Gulf, the waves are likely about 2 meters high and above 2 meters high in thundershowers.