Weekly Weather Summary
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August 6, 2018 - August 12, 2018Max. Rainfall AmountMax. Temperature
Thailand
The active southwest monsoon prevailed over the Andaman Sea, Thailand and the Gulf of Thailand throughout the week. Associated with the monsoon trough lay across northern and upper northeastern parts toward the active low pressure cell over the South China Sea during the first half of the week. After that, it moved northward to lie over Myanmar, upper Laos and Vietnam. During the second half of the week, the active low pressure cell in the upper South China Sea formed as a tropical depression in the afternoon of Aug 10 and made landfall over the Southern of China in the next afternoon. After that, the mentioned tropical depression is almost stationary over the coast of southern China before tracking into the upper South China Sea in the evening of Aug 12. These conditions caused rainfall over Thailand throughout the week with heavy to very heavy rainfall in some areas mainly in northern, northeastern, eastern and southern parts during the early and middle of the week.    
Northern Part
Scattered rain with heavy rainfall in some areas except for fairly widespread rain with heavy to very heavy rainfall in some areas on 9 and 12 Aug. 120.6 mm at Mueang Uttaradit on 9 Aug. 
Northeastern Part
Fairly widespread rain with heavy to very heavy rainfall in some areas except for scattered rain with heavy to very heavy rainfall in some areas on 7,10 and 11 Aug. Flooding continued from last week at Nakhon Panom, Ubon Ratchathani, Bueng Kan, Sakon Nakhon, Roi Et, Kalasin and Yasothon provinces. 127.0 mm at Benjaluk Si Saket on 6 Aug.  
Central Part
Isolated to scattered rain nearly the whole week with heavy rainfall in some areas during the early week. 63.0 mm at Sangkhla Buri Kanchanaburi on 6 Aug. 
Eastern Part
Scattered rain with heavy to very heavy rainfall in some areas except for fairly widespread rain with heavy to very heavy rainfall in some areas on 7 Aug. 126.2 mm at Khao Saming Trat on 7 Aug. 
Southern Part (East Coast)
Scattered to fairly widespread rain with heavy to very heavy rainfall in some areas. Flooding continued from last week at Phetchaburi and Surat Thani provinces. Flash flood occurred at Chumphon province on 11 Aug. 157.0 mm at Pato Chumphon on 10 Aug. 
Southern Part (West Coast)
Fairly widespread rain with heavy to very heavy rainfall in some areas during the early and middle of the week then rainfall decreased to isolated to scattered rain. Flash flood occurred at Ranong province on 10 and 12 Aug. 145.9 mm at Mueang Ranong on 9 Aug. 
Metropolitan
Isolate rain except for fairly widespread rain with heavy rainfall in some areas on 6, 7 and 11 Aug. 39.1 mm at Kuakarun Nursing College Khet Dusit on 7 Aug. (31.1 mm at Khlong Luang Pathum Thani on 7 Aug.)  
Weekly total Rainfall and Weekly mean minimum temperature Map
Issued Date August 13, 2018