Isolated heavy rains in the South raise risk of flash floods
People in the South should beware of severe weather conditions that may cause flash floods, as a rather strong northeast monsoon covers the Gulf, bringing thundershowers and isolated heavy to very rains to the South from Nakhon Si Thammarat southwards, the Thailand Meteorological Department said on Saturday.
Waves in the Gulf rise about two metres high and above two metres in thundershowers. All ships should proceed with caution, the department said.
The rather strong high-pressure system from China has extended to cover upper Thailand and the South China Sea. Cool to cold weather is forecast for upper Thailand, with temperature falling by 1-2 degrees Celsius, and strong winds are likely over upper Thailand. Mountaintops remain cold to very cold.
The department also said that the active low-pressure cell over the Philippines has intensified into a tropical depression and is moving west. It is likely to move into the South China Sea and will intensify into a tropical storm on Sunday, causing temperatures in upper Thailand to drop by 2-4 degrees Celsius with strong winds.
The weather forecast for the next 24 hours:
North: Cool to cold weather with fog in the morning; minimum temperature 15-21 degrees Celsius, maximum 31-33°C; temperature on hilltops is likely to drop to 5-14°C with frost in some areas.
Northeast: Cool to cold weather with strong winds; minimum temperature 13-18°C, maximum 28-31°C; temperature on hilltops is likely to drop to 9-14°C.
Central: Cool weather in the morning; minimum temperature 20-23°C, maximum 32-34°C.
East: Cool weather in the morning with strong winds; minimum temperature 20-24°C, maximum 33-35°C; waves a metre high and 1-2 metres off shore.
South (east coast): Mostly cloudy with thundershowers in 70 per cent of the areas and isolated heavy to very heavy rain; minimum temperature 23-24°C, maximum 26-32°C; waves two metres high and over two metres during thundershowers.
South (west coast): Mostly cloudy with thundershowers in 60 per cent of the areas and isolated heavy rain; minimum temperature 22-25°C, maximum 30-33°C; waves a metre high and 1-2 metres during thundershowers.
Bangkok and surrounding areas: Cool weather in the morning; minimum temperature 21-24°C, maximum 32-34°C.
