The weak high-pressure system covers the North, the Northeast and the South China Sea with morning fog. Morning cool is forecast in the North and the Northeast regions while isolated thundershower is forecast in the Northeast, the Central including Bangkok and its vicinity and the East regions. The easterly and the southeasterly winds prevail over the Gulf and the South with more rain and isolated heavy rain in the South. The winds and waves in the lower Gulf are expected 1-2 meters high and above 2 meters high in thundershowers.