The Meteorological Department revealed that the monsoon trough will pass through, causing heavy rain in some areas of Thailand. Beware of flash floods and forest runoff.The Meteorological Department revealed that a moderate monsoon trough is passing through the upper North and the upper Northeast, entering a low-pressure cell in the upper part of Vietnam and the Gulf of Tonkin. In addition, the southwest monsoon is still blowing over the Andaman Sea, Thailand and the Gulf of Thailand. Meanwhile, there is a test wind of the southeast and southwest winds at the upper level covering the Northeast. This condition will cause heavy rain in some areas of the North, upper Northeast, Central, including Bangkok and its vicinity, the East and the South. People in the aforementioned areas should be careful of the dangers of heavy rain and accumulated rain, which may cause flash floods and forest runoff, especially in areas on hillsides near waterways and lowlands.For the Andaman Sea and the Gulf of Thailand, the sea has waves approximately 1 meter high, further from the shore and in areas with thunderstorms, the waves are higher than 2 meters. Sailors are asked to avoid sailing in areas with thunderstorms.In addition, Typhoon 'Ompul' is centered in the eastern part of Japan. This storm will not affect the weather in Thailand. Those who plan to travel to the area should check the weather conditions before traveling during the said period.Source: Thai News Agency