The Meteorological Department warns that a monsoon trough will pass through the upper southern region, causing heavy to very heavy rain in some areas, which may cause flash floods and forest runoff. The Meteorological Department revealed that the easterly and southeasterly winds will bring moisture from the South China Sea and the Gulf of Thailand to cover the lower northeastern region, the central region, including Bangkok and its vicinity, and the eastern region. This will cause some areas of the lower central region, including Bangkok and its vicinity, and the eastern region to experience heavy rain. The area of ??weak high pressure will continue to cover the upper northeastern region, causing the area to have cool weather in the morning. People in the upper part of Thailand should take care of their health due to the changing weather conditions. For the monsoon trough across the upper southern region, it will cause heavy to very heavy rain in some areas of the southern region. People in the aforementio ned areas should be careful of the dangers of heavy to very heavy rain and accumulated rain, which may cause flash floods and forest runoff, especially on hillsides near waterways and lowlands. As for the waves in the Andaman Sea and the Gulf of Thailand, they are weak with waves less than 1 meter high. In areas with thunderstorms, waves are higher than 2 meters. Sailors should avoid sailing in areas with thunderstorms. Source: Thai News Agency