The Thailand Meteorological Department said on Friday (October 8) that the strong southwest monsoon prevails across the Andaman Sea, Thailand and the Gulf of Thailand while the monsoon trough lies across the Central and the lower Northeast. Thundershowers are forecast over the country with isolated heavy rain in the Northeast, the East and the South. People in risky areas should beware of severe condition and rain accumulation that may cause flash flood and overflow. Waves in the Andaman Sea are 2-3 meters high and over 3 meters high in thundershowers. All ships should proceed with caution and keep off thundershowers, while small boats should keep ashore.