The monsoon trough lies across the North and the Northeast while the southwest monsoon prevailing over the Andaman Sea, Thailand and the Gulf is strengthening. At the same time, the low-pressure cell covers the lower North. More rains and isolated heavy rains are likely in the country while isolated very heavy rains are possible in the East and the South(west coast) regions. The rather strong wind force the waves in the upper Andaman Sea up to 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.