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Thailand Weather
  General Situation    at 04:00 January 21, 2017  
During 20-25 January, another rather high pressure persistent covers the Northeast of Thailand for the period lasting 24 January. Outbreaks of cool to cold spells will be likely with a decrease by 3-5 °C, as well as windy condition while the rest regions gain a decrease by 1-3 °C.
The northeast monsoon will gain more strength across the Gulf to force the South persistent rain spells. Heavy to torrential rains will be likely while during 20-21 January the winds become stronger with waves in the lower Gulf up to 2-3 meters high. People should beware of severe conditions and possible flash flood. All ships proceed with caution and small boats keep ashore. Be cautious for areas prone to landslide, and people along the Gulf should beware of inshore surges.
  Bangkok Metropolis and Vicinity Forecast    From 06:00 today To 06:00 tomorrow  
Partly cloudy and temperature decrease 1-2 °C. . Minimum temperature 23-25 °C. Maximum temperature 33-35 °C. Northeasterly winds 15-30 km/hr.
More Details Issued Date January 21, 2017
  7 days Weather Forecast   January 21, 2017 - January 27, 2017  
     During 21-24 Jan 2017, the rather strong high pressure from China will cover upper Thailand effect cooler, 4-6°C drops in temperature with windy. During 25-27 Jan 2017, the rather strong high pressure from China cover upper Thailand will weaken cause slight rise temperature. The northeast monsoon prevails over the Gulf and the South will intensify throughout the period. During 21-22 Jan 2017, heavy to very heavy rain is likely from Surat Thani downward and during 23-25 Jan 2017, heavy to very heavy rain mostly Nakhon Si Thammarat downward. The strong wind waves are likely 2-3 meters from Surat Thani downward.
     
Cautions
     During 20-25 Jan 2017, people in lower South should beware of severe condition. All ships should proceed with caution, and small boats keep ashore. People in upper Thailand should beware about health due to the weather change.
Issued Date January 21, 2017
  7 day Weather Summary   January 13, 2017 - January 19, 2017  
The high pressure area covered upper Thailand throughout the period. The another moderate high pressure area from China extended its ridge to cover the mention area during the second half of the period. In addition, the northeast monsoon which prevailed over southern part and the Gulf of Thailand strengthened during the second half of the period. These conditions caused cool weather over upper Thailand with cold weather in several areas of northern part and some areas of northeastern part. Abundant rainfall occurred in southern part mainly during the second half of the period.
Previous Issued Date January 20, 2017