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  General Situation    at 04:00 September 16, 2019  
The monsoon trough lies across the lower Central and the East to the low-pressure cell over Cambodia. The strong southwest monsoon prevails across the Andaman Sea, the South and the upper Gulf. Abundant rains with isolated heavy to very heavy rains are likely in the lower Central, the East and the South. People in the areas should beware of severe condition. Less rain is likely in the North and Northeast The strong winds waves are likely 2-3 meters high in the upper Andaman and the upper Gulf and above 3 meters high in thundershowers. All ships should proceed with caution and keep off thundershower and small boat should keep ashore the lasting 17 Sep 2019.
  Bangkok Metropolis and Vicinity Forecast    From 06:00 today To 06:00 tomorrow  
Very cloudy with scattered thundershowers and isolated heavy rain. Minimum temperature 24-25 °C. Maximum temperature 32-35 °C. Southwesterly winds 10-25 km/hr.
More Details Issued Date September 16, 2019
  7 days Weather Forecast   September 15, 2019 - September 21, 2019  
     During 15 - 17 Sep, the monsoon trough lies across the Central and the East to the low cell over the middle South China Sea. The strong southwest monsoon prevails over the Andaman Sea, Thailand and the Gulf. Abundant rain with isolated heavy rain are expected over the Central, the East and the South. The strong wind and waves are likely 2-3 meters high in the upper Andaman Sea and the upper Gulf. During 18 - 21 Sep, the monsoon trough will move up to lie across the lower North and the Northeast while the moderate southwest monsoon prevails over the Andaman Sea, Thailand and the Gulf. More rains are forecast for the lower North and the Northeast while continue rainfall with isolated heavy rain remain in the other parts. The moderate wind and waves are likely about 2 meters high in the Andaman Sea and the upper Gulf with above 2 meters high in thundershowers.
     
Cautions
     People in the lower North, the lower Northeast, the Central, the East and the South should beware of severe condition. All ships in the Andaman Sea should proceed with caution and keep off thundershowers. During 15 - 17 Sep, small boat should keep ashore.
Issued Date September 15, 2019
  7 day Weather Summary   September 6, 2019 - September 12, 2019  
The monsoon trough lay across the upper northern and northeastern parts during the first day of the period and the end of the period. It lay toward the active low pressure cell in the upper South China Sea on the first day and lay toward the low pressure cell in upper Vietnam and the Gulf of Tonkin during late period. In addition, the southwest monsoon prevailed over the Andaman Sea, Thailand and the Gulf of Thailand throughout the period. Moreover, the low pressure cell covered Loas and upper Vietnam on 9 and 10 Sep. These conditions caused rainfall in upper Thailand mainly in the northeastern part. Southern part received plentiful of rainfall mainly along the east coast.
Previous Issued Date September 13, 2019