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Thailand Weather
  General Situation    at 04:00 January 23, 2020  
The weak high-pressure system covers the upper northeast and the South China Sea while the westerly trough moves to upper Laos. Fog is likely in the morning over the upper country while the plains of the North and the Northeast are cool to cold in the morning and minimum temperatures in range of 14-22 °C. The mountaintops are cool to cold with isolated frost in the North, minimum temperature ranging 4-15 °C. All transport should proceed with caution in foggy areas. The southeasterly wind prevails over the Central, the East while the easterly winds prevails across the South, leading to outbreaks of light rain.
Dust situation: In the North, the Central region including Bangkok and its vicinity, light winds blowing around the area with isolated light rain will make an accumulation of dust and smog in a few days.
  Bangkok Metropolis and Vicinity Forecast    From 06:00 today To 06:00 tomorrow  
Morning fog and isolated light rain. Minimum temperature 24-26 °C. Maximum temperature 34-36 °C. Southeasterly winds 10-20 km/hr.
More Details Issued Date January 23, 2020
  7 days Weather Forecast   January 22, 2020 - January 28, 2020  
     During 22 - 23 Jan, the high-pressure over the Northeast and the South China Sea is weakening while the westerly trough is moving from the North to Laos and upper Vietnam. Cool to cold weather is also forecast over the areas. The southeasterly wind prevails across the Central including Bangkok and its vicinity and the East with isolated light rain. The easterly wind remains over the lower South with isolated thundershowers remaining. The wind waves are 1-2 meters high in the lower Gulf. During 24 - 28 Jan, another high-pressure system will extend to the Northeast and the South China Sea while the westerly trough will be move pass the North and the upper Northeast. Thundershowers with gusty wind is possible in the first period over the upper country before temperatures will drop by 4-7°C and isolated frost occurs at the mountaintops in the North. In the Central and the East, temperatures will drop by 2-4 °C while in the South isolated rain is possible.
     
Cautions
     During 24 – 28 Jan, people in upper Thailand should keep healthy due to the changeable weather.
Issued Date January 22, 2020
  7 day Weather Summary   January 13, 2020 - January 19, 2020  
The high pressure areas from China extended its ridge to cover the northern and northeastern parts accompanied with the westerly trough moved through the northern part throughout the week causing cool and cold weather in northern and northeastern parts, especially cold weather over upper northern part while cool weather in several areas of the rest parts. The southeasterly wind prevailed over lower central part, eastern part and Bangkok brought unseasonable rainfall in the mentioned areas while southern Thailand received rainfall in some areas mainly along east coast caused by the easterly wind prevailed over the Gulf of Thailand and the southern part which strengthened during the second half of the week.
Previous Issued Date January 20, 2020