The Meteorological Department has warned that the monsoon trough will slide down across 4 regions, with 80 percent of heavy rain till September 27.

21 September 2022 – The Meteorological Department predicts 7 days in advance during 21-27 September. It is expected as follows. Another high pressure area or cold air mass from China extends to cover upper Laos and upper Vietnam. As a result, the monsoon trough moves down over the North, Mid, East and North East regions. into a low pressure cell in central Vietnam In addition, the southwest monsoon prevails over the Andaman Sea, Thailand and the Gulf of Thailand with moderate strength throughout the period.

As such, Thailand has a lot of rain. and heavy to very heavy rain with gusts of wind in some places in the north Northeast region, Central region, including Bangkok and its surroundings, Eastern region and Southern region

Wind waves in the Andaman Sea and Gulf of Thailand are moderate throughout the period, with the Andaman Sea and the upper Gulf of Thailand having waves 1-2 meters high, while in the area with thunderstorms, waves higher than 2 meters. Beware of danger from strong winds Heavy to very heavy rain and accumulated rainfall which can cause flash floods and flash floods. especially the hillsides near waterways and marshy areas Mariners in the Andaman Sea and the upper Gulf of Thailand should proceed with caution and avoid sailing in thunderstorm areas throughout the period.

Northern region: 60-80 per cent of thunder showers in the area throughout the period During 22 – 26 September 65, heavy to very heavy rain with gusts in some places.
Variable wind speed 10-20 km/hour Minimum temperature 21-26 degrees Celsius, maximum temperature 28-35 degrees Celsius.

North East 60-80% of thunderstorms during the period During 21-25 September 65, heavy to very heavy rain with gusts in some places Variable winds, speed 10-20 km/h Minimum temperature 20-26 degrees Celsius, maximum temperature 28-36 degrees Celsius

Central region: 60-80 percent of the area has thunderstorms throughout the period and heavy rain with gusts in some places Variable wind speed 10-20 km/h Minimum temperature 22-27 degrees Celsius, maximum temperature 30 -36 degrees Celsius.

Eastern region: Thunderstorms 60-80% of the area throughout the period and heavy to very heavy rain with gusts in some places Variable wind speed 15-35 km/h Wave height 1-2 meters Thunderstorms, high waves more than 2 meters, minimum temperature 23-28 degrees Celsius, maximum temperature 29-36 degrees Celsius.

south east coast 40-60% of thunder showers in the area throughout the period and isolated heavy rain.
Southwesterly winds 15-35 km/h Wave height 1-2 meters, in stormy areas, wave height more than 2 meters, minimum temperature 22-27 degrees Celsius, maximum temperature 30-36 degrees Celsius.

south west coast Thunderstorms 60-80% of the area and isolated heavy rain throughout the period South-westerly winds 15-35 km/h Wave height 1-2 meters and more than 2 meters in areas of showers and thunderstorms Temperature Minimum 22-26 degrees Celsius, maximum temperature 28-36 degrees Celsius

Bangkok and surrounding areas Thunderstorms 60-80% of the area and heavy rain with gusts in some places throughout the period Variable wind speed 10-20 km/hour Minimum temperature 24-28 degrees Celsius, maximum temperature 30- 36 degrees Celsius.

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