The rather strong monsoon trough lies across the upper North and the upper Northeast into the low-pressure cell over upper Vietnam. The moderate southwest monsoon prevails over the Andaman Sea, Thailand and the Gulf. Isolated heavy rain is likely in Thailand and isolated very heavy rain possible in the North, The moderate wind and waves in the upper Andaman Sea are expected about 2 meters high and above 2 meters high in thundershowers. In the lower Andaman Sea and the upper Gulf, the waves are expected 1-2 meters high and above 2 meters high in thundershowers.