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  General Situation    at 22:00 November 20, 2019  
The rather strong high-pressure system reaches upper Thailand and the South China Sea. A decrease in temperatures is expected by 1-3 °C with strong wind and morning cool over upper Thailand. Flat area: morning cool to cold minimum temperature 15-19 °C and vary cold to very cold on mountaintops minimum temperature 6-14 °C. All people should beware about severe weather. The moderated northeast monsoon across the Gulf and the South cause isolated heavy rain middle in the South. The strong wind waves are likely about 2 meters and above 2 meters in thundershower in the lower Gulf of Thailand. All ships should proceed with caution and keep away from thundershowers.
  Bangkok Metropolis and Vicinity Forecast    From 23:00 today To 23:00 tomorrow  
Decrease in temperatures by 1-2 °C. Morning cool with strong wind. Minimum temperature 22-23 °C. Maximum temperature 33-34 °C. Northeasterly winds 10-30 km/hr.
More Details Issued Date November 20, 2019
  7 days Weather Forecast   November 20, 2019 - November 26, 2019  
     During 20–22 Nov, rather strong high pressure areas will extend to the upper country. Cool to cold weather with windy, and decreasing temperature by 1-3°C are likely over upper Thailand, cold to very cold with isolated frost on mountaintops minimum temperature 6-14°C. The northeast monsoon prevailing over the Gulf and the South will strengthen. More rain is expected in the South. The moderate wind and waves are likely about 2 meters and above 2 meters in thundershower. During 23-24 Nov, the high pressure areas covering upper Thailand will weaken and cause increasing in temperature. Morning cool and fog are likely over the upper country, cold to very cold on mountaintops minimum temperature 5-12°C. The weak northeast monsoon prevails over the Gulf and the South and cause less rain in the South. During 25-26 Nov, Another rather strong high pressure areas will extend to cover the Northeast and the South China Sea cause light rain in the first is likely in the Northeast and slight drop in temperature. The Northeast monsoon will stronger cause the South is more rain and isolateds heavy rain.
     
Cautions
     During 20-22 Nov, people in upper Thailand should be careful of their health due cool to cold weather. All ships should proceed with caution and keep away from thundershowers. During 23-24 Nov, People in upper Thailand should carefully consider the visual areas of fog as well.
Issued Date November 20, 2019
  7 day Weather Summary   November 11, 2019 - November 17, 2019  
The high pressure area from China extended its ridge to cover upper Thailand almost the whole week and another rather high pressure area extended its ridge to cover the mention area during the middle of the week and later weakened. In addition, the northeast monsoon prevailed over the Gulf of Thailand and the southern part throughout the week. Besides, the remnant of tropical storm “NAKRI (1924)” which making landfall at Nha Trang, Vietnam on 11 Nov. covered Cambodia during early week. These conditions caused cool weather nearly the whole areas of the northern and northeastern parts and cool weather in several areas mainly during early week and weekend for the rest parts. Rainfall was reported in upper Thailand during the first half of the week. Southern Thailand obtained rainfall mainly along the east coast.
Previous Issued Date November 18, 2019