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Thailand Weather
  General Situation    at 22:00 September 21, 2019  
The monsoon trough remains across the lower North, the upper Central and the lower Northeast regions to the low-pressure cell over the middle South China Sea. Thundershowers and gusty winds will be likely. Heavy to very heavy rain are forecast some of the lower North, the lower Northeast, the East and the Central includes Bangkok and its Vicinity.
From 23-26 September, the moderate high-pressure system from China covers the North, the Northeast and the Central regios. The rainfalls will decrease in upper Thailand and temperatures drop by 3-5 degrees Celsius, affecting first the Northeast, then the rest regions. People should keep healthy due to the changeable weather conditions. The southwest monsoon causes the moderate winds waves about 2 meters high in the upper Andaman and the upper Gulf and above 2 meters high in thundershowers. All ships should proceed with caution and keep off thundershower.
The category 5 tropical storm TAPAH east of China is likely to move to southern Japan from 22-23 September. Travellers and all concerned above stay tuned.
  Bangkok Metropolis and Vicinity Forecast    From 23:00 today To 23:00 tomorrow  
Very cloudy with fairly widespread thundershowers and isolated heavy to very heavy rain. Minimum temperature 24-25 °C. Maximum temperature 30-32 °C. Easterly winds 10-25 km/hr.
More Details Issued Date September 21, 2019
  7 days Weather Forecast   September 21, 2019 - September 27, 2019  
     Weather Forecast: During 21 - 22 Sep, the monsoon trough lies across the lower North, the lower Northeast, the Central, and the East to the low cell over the middle South China Sea while the high pressure covers upper Laos and Vietnam. More rains are forecast for the North, the lower Northeast, the Central and the East with isolated heavy to very heavy rain. The weak southwest monsoon prevails over the Andaman Sea, the South and the Gulf. Less rain but still with isolated heavy rain is likely in the South. 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. During 23 - 27 Sep, the high pressure cover upper Vietnam and Laos will extend to cover the North and the Northeast, cause the monsoon trough moves down to lies across the upper South. Isolated heavy rains are expected for the areas while less rains are likely over the North and the Northeast. According to temperatures are also decreasing by 3-5 °C in the North and the Northeast. The moderate wind and waves are likely about 2 meters high and above 2 meters high in thundershowers throughout the period.
     
Cautions
     Warning: During 21 - 22 Sep, people in the North, the northeast, the Central, the east, and the southwest should beware of severe condition. All ships in the Andaman Sea should proceed with caution, keep off thundershowers throughout the period.
Issued Date September 21, 2019
  7 day Weather Summary   September 13, 2019 - September 19, 2019  
The monsoon trough lay across the central, lower northeastern and eastern parts toward the low pressure cell over central South China Sea during the early period. After that, the monsoon trough moved southward to lie across the lower central, upper southern and eastern parts toward the low pressure cell over Cambodia. On the last day of the period, the monsoon trough moved northward to lie across the lower northern and central parts toward the low pressure cell over eastern part and Cambodia. In addition, the active southwest monsoon prevailed over the Andaman Sea, southern part and the upper Gulf of Thailand throughout the period. These conditions caused increasing both amount and distribution of rainfall in Thailand from the last period especially abundant rainfall in the central, eastern and southern parts almost the period with heavy to very heavy rainfall in some areas.
Previous Issued Date September 20, 2019