Weekly Weather Summary
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July 17, 2017 - July 23, 2017Max. Rainfall AmountMax. Temperature
Thailand
Tropical storm “TALAS” (1704) in the middle South China Sea made landfall over south of Hanoi, Vietnam before heading to Laos and downgraded into the tropical depression before entering Thailand at Nan province on 17 Jul. It later weakened into the active low pressure cell covering the upper northern Thailand and Myanmar on the next day. In addition, during the middle of the week, the monsoon trough lay across Myanmar, Laos and Vietnam to the active low pressure cell in the upper South China Sea. The mentioned active low pressure cell intensified into the tropical depression on 22 Jul. and tropical storm “SONCA” (1708) on the following day. Besides, the moderate southwest monsoon prevailed over the Andaman Sea and Thailand almost the whole week. These conditions caused abundant rainfall over upper Thailand throughout the week.    
Northern Part
Fairly widespread to widespread rain with heavy to very heavy rainfall in some areas especially in the upper portion on 17 Jul. 145.0 mm at Phu Phiang Nan on 17 Jul.  34.4 º C at Mueang Lamphun on 18 Jul. 
Northeastern Part
Fairly widespread to widespread rain with heavy to very heavy rainfall in some areas. 116.4 mm at Mueang Nong Khai on 20 Jul.  34.7 º C at Chok Chai Nakhon Ratchasima on 23 Jul. 
Central Part
Widespread rain during the first half of the week with heavy rainfall in some areas then isolated to scattered rain with heavy rainfall in some areas. 76.3 mm at Sangkhla Buri Kanchanaburi on 17 Jul.  35.7 º C at Mueang. Lop Buri on 21 Jul. 
Eastern Part
Widespread rain with heavy to very heavy rainfall in some areas except for scattered rain with heavy rainfall on 17, 21 and 22 Jul. 148.6 mm at Ko Kut Trat on 19 Jul.  34.2 º C at Mueang. Prachin Buri on 23 Jul. 
Southern Part (East Coast)
Scattered rain almost the whole week with heavy rainfall in some areas. 57.7 mm at Phato Chumphon on 21 Jul.  36.7 º C at Hat Yai Airport Songkhla on 18 Jul. 
Southern Part (West Coast)
Isolated rain throughout the week. 20.6 mm at Mueang Ranong on 17 Jul.  35.8 º C at Trang Airport Trang on 18 Jul. 
Metropolitan
Fairly widespread to widespread rain with heavy rainfall in some areas except for isolated rain on 17, 21 and 22 Jul. 80.8 mm at Bangkok Metropolis Khet Khlong Toei on 23 Jul. ( 38.3 mm at Bang Phli Samut Prakan on 19 Jul.)   35.4 º C at Bangkok Port Khet Khlong Toei on 23 Jul. V (35.4 º C at Khlong Luang Pathum Thani on 23 Jul.)  
Issued Date July 24, 2017