Saturday, September 26, 2020

Heavy rains forecast for North and South 

Aug 09. 2020
Photo credit: Meteorological Department
Photo credit: Meteorological Department
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By The Nation

A monsoon trough lies across the upper North and the upper Northeast to the low-pressure cell over the upper South China Sea. A strong southwest monsoon prevails over the Andaman Sea, Thailand and the Gulf of Thailand, says the Meteorological Department

Isolated heavy rains are likely in some areas of the North, the Northeast, the East and the South. 

People in the North and the South should beware of heavy rains and accumulated rainfalls, the department said.

Strong wind waves are likely to rise 2-3 metres high in the Andaman Sea, about two metres high in the Gulf of Thailand and above three metres high in thundershower areas. All ships in the Andaman Sea and the Gulf of Thailand should proceed with caution and small boats in the Andaman Sea should keep ashore until August 11, the department advised.

The category 2 storm (tropical depression) over the Pacific Ocean is upgraded to catalog 3 storm (tropical storm “Jangmi”). It is expected to move up to Taiwan and downgrade on August 10. This storm does not affect Thailand.

The forecast for all regions:

Bangkok and its vinicity: Cloudy with scattered thundershowers; minimum temperature 24-25°C, maximum 30-31°C; southwesterly winds 10-25kph.

North: Cloudy with scattered thundershowers and isolated heavy rain in Mae Hong Son, Chiang Mai, Chiang Rai, Phayao, Phrae, Nan, Uttaradit, Phitsanulok, Phetchabun and Tak provinces; minimum temperature 24-26°C, maximum 30-34°C; southwesterly winds 10-25kph.

Northeast: Cloudy with scattered thundershowers and isolated heavy rain in Sakon Nakhon, Nakhon Phanom, Mukdahan, Amnat Charoen, Chaiyaphum, Nakhon Ratchasima, Buri Ram, Surin, Si Sa Ket and Ubon Ratchathani provinces; minimum temperature 23-26°C, maximum 30-34°C; southwesterly winds 10-25kph.

Central: Cloudy with scattered thundershowers mostly in Kanchanaburi, Ratchaburi, Samut Songkhram, Samut Sakhon and Nakhon Pathom provinces; minimum temperature 24-26°C, maximum 32-35°C; southwesterly winds 10-25kph.

East: Cloudy with fairly widespread thundershowers and isolated heavy rain in Chachoengsao, Chon Buri, Rayong, Chanthaburi and Trat provinces; minimum temperature 23-25°C, maximum 28-33°C; southwesterly winds 20-35kph; waves about two metres high and above two metres in thundershower areas.

South (East Coast): Cloudy with scattered thundershowers mostly in Phetchaburi, Prachuap Khiri Khan, Chumphon, Surat Thani and Nakhon Si Thammarat provinces; minimum temperature 24-25°C, maximum 32-35°C; southwesterly winds 15-35kph; waves 1-2 metres high and about two metres offshore.

South (west coast): Cloudy with fairly widespread thundershowers and isolated heavy rain in Ranong, Phang Nga, Phuket and Krabi provinces; minimum temperature24-26°C, maximum 31-34°C. 

From Phuket northward: Southwesterly winds 20-40kph, waves about 2-3 metres high and above three metres high in thundershower areas. 

From Krabi southward: Southwesterly winds 20-35kph; waves about two metres high and above two metres in thundershower areas.

Seven-day forecast:

From August 8-11, the monsoon trough lying across the North and the Northeast will strengthen. The southwest monsoon across the Andaman Sea and the Gulf of Thailand also will strengthen. More rains are likely across the country with isolated heavy rains. Strong wind waves 2-3 metres high are likely in the Andaman Sea, about two metres high in the Gulf of Thailand and above three metres high in thundershower areas. 

From August 12-14, the monsoon trough lies across Myanmar, Laos and upper Vietnam. The southwest monsoon prevailing across the Andaman Sea and the Gulf of Thailand will weaken. Continuous rains are likely over the country and isolated heavy rains. Moderate wind waves about two metres high are likely in the Andaman Sea, 1-2 metres high in the Gulf of Thailand. 

The catalog 2 storm (depressure) over the Paciffic ocean or the east of Philippines is expected to downgrade on August 9-10 and will not affect Thailand. 

From August 8-11, people in the whole country should beware of severe conditions and stay tuned for weather updates. All ships should proceed with caution and small boats should keep ashore including keeping away from thundershower areas, the department said.

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