Weekly Weather Summary
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October 15, 2018 - October 21, 2018Max. Rainfall AmountMax. Temperature
Thailand
The weak high pressure area covered upper Thailand and South China Sea during early week then it moved to cover Vietnam and South China Sea during the middle of the week. In addition, the southeasterly wind prevailed over Thailand almost the whole week. Moreover, the active low pressure cell in the lower South China Sea intensified into the tropical depression in the evening of Oct 19. After that, it moved through the Gulf of Thailand and made landfall over Prachuap Khiri Khan in the next evening and later downgraded into the active low pressure cell covering the Gulf of Martaban, Myanmar on the last day of the week. These conditions caused cool weather occurred in the morning over northern part. Rainfall still occurred over upper Thailand almost the whole week with heavy to very heavy rainfall in some areas mainly during the second half of the week while rainfall observed in southern part throughout the week with heavy to very heavy rainfall in some areas.    
Northern Part
Cool weather in the morning mainly in the upper portion. Isolated rain with heavy rainfall in some areas during the early and middle of the week then fairly widespread rain with heavy to very heavy rainfall in some areas. 126.0 mm at Si Satchanalai Sukhothai on 21 Oct. 
Northeastern Part
Isolated rain with heavy rainfall in some areas during the early week then scattered to fairly widespread rain with heavy to very heavy rainfall in some areas. 110.7 mm at Non Sang Nong Bua Lam Phu on 17 Oct. 
Central Part
Isolated to scattered rain during the first half of the week then fairly widespread rain with heavy to very heavy rainfall in some areas. 96.7 mm at Mueang Ratcha Buri on 20 Oct. 
Eastern Part
Isolated rain with heavy rainfall in some areas during the early week then fairly widespread rain with heavy rainfall in some areas. 73.9 mm at Wang Nam Yen Sa Kaeo on 18 Oct. 
Southern Part (East Coast)
Scattered to fairly widespread rain with heavy to very heavy rainfall in some areas throughout the week. 98.6 mm at Mueang Phetchaburi on 20 Oct. 
Southern Part (West Coast)
Fairly widespread rain with heavy rainfall in some areas except for scattered rain with heavy rainfall in some areas on 19 and 21 Oct. 84.2 mm at Takua Pa Phang-Nga on 18 Oct. 
Metropolitan
Isolated to scattered rain with heavy rainfall in some areas during the first half of the week then fairly widespread rain with heavy to very heavy rainfall in some areas. 83.0 mm at Wat Bang Bon School Khet Bang Bon on 20 Oct. (101.4 mm at Bang Len Nakhon Pathom on 20 Oct.)  
Weekly total Rainfall and Weekly mean minimum temperature Map
Issued Date October 22, 2018