The monsoon through lies across the lower North the Central and the Norhtheast while the moderate southwest monsoon prevailing over the Andaman Sea, Thailand and the Gulf with isolated heavy rain in Thailand and heavy rain in some place of the East. The moderated wind forces the waves in the upper Andaman Sea up to about 2 meters high and above 2 meters high in thundershowers. In the lower Andaman Sea and the upper Gulf, the waves are likely 1-2 meters high and above 2 meters high in thundershowers.