The westerly trough from Myanmar moves through the North while another moderate high-pressure system from China will extend to the Northeast, the East and the South China Sea with hot weather occurs over the upper country. Outbreak of summer storms are possible following with gust, hail and heavy rains including lightning strikes are forecast in the North at first then the Central, the western part of the Northeast and the East including Bangkok and its vicinity. The easterly wind prevails over the Gulf, the South and the Andaman Sea with isolated thundershower in the South. The winds and waves in the lower Gulf are likely 1-2 meters high and above 2 meters high in thundershowers.