Weekly Weather Summary
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August 8, 2022 - August 14, 2022Max. Rainfall AmountMax. Temperature
Thailand
The monsoon trough lay across the northern and northeastern parts toward the active low pressure cell over the upper South China Sea on the first day of the week. Then the mentioned low pressure cell intensified into the tropical depression in the afternoon of 8 Aug. and reached the tropical storm “MULAN” (2207) in the afternoon of 9 Aug. The storm moved through the Gulf of Tonkin before making landfall over Quảng Ninh, upper Vietnam in the early morning of 11 Aug. and downgraded into the tropical depression over Lạng Sơn , Vietnam on 07:00 a.m. After that, it degenerated into an active low pressure cell covered the upper portion of the northern part and Myanmar on 12 Aug. and later dissipated. During the middle week, the monsoon trough shifted further north to lie across Myanmar, upper northern and upper Laos then the monsoon trough lay across Myanmar, upper portion of the northern part and upper Laos toward a low pressure cell over upper Vietnam and the Gulf of Tonkin on 13 Aug. The mentioned low pressure cell still covered upper Vietnam and the Gulf of Tonkin on the last day of the week. In addition, the moderate to rather active southwest monsoon prevailed over the Andaman Sea, Thailand and the Gulf of Thailand during the first half of the week then it weakened. These conditions caused abundant rainfall over upper Thailand during the early and middle week with flooding in some areas while the southern part received rainfall almost the week.    
Northern Part
Fairly widespread rain except for scattered rain on the last day of the week with heavy rainfall in some areas almost the week and very heavy rainfall in some areas on 8 and 11 Aug. Landslide occurred in Chiang Rai and Lampang provinces on 8 Aug., Mae Hong Son province on 8-10 Aug. Floods were reported in Tak and Sukhothai provinces on 8 Aug., Phetchabun province on 8-9 Aug., Chiang Rai, Mae Hong Son, Lampang and Phitsanulok provinces on 8-9 and 12 Aug., Pichit province on 9 Aug., Chiang Mai, Nan and Phayao provinces on 11 Aug. and Phrae province on 12 Aug. 217.3 mm at Mueang Chiang Rai on 11 Aug. 
Northeastern Part
Scattered rain except for fairly widespread rain on 8, 9 and 12 Aug. Heavy rainfall occurred in some areas almost the week and very heavy rainfall in some areas during the first half of the week. Floods were reported in Khon Kaen province on 9 Aug., Nakhon Phanom province on 11 Aug. and Loei province on 12 Aug. 174.6 mm at Mueang Nakhon Phanom on 11 Aug. 
Central Part
Fairly widespread rain except for isolated to scattered rain on 10, 13 and 14 Aug. Heavy rainfall occurred in some areas almost the week. 81.1 mm at Phachi Phra Nakhon Si Ayutthaya on 8 Aug. 
Eastern Part
Fairly widespread rain with heavy to very heavy rainfall in some areas during the early and middle week then isolated rain. Floods were reported in Nakhon Nayok province on 8 Aug. and Prachin Buri province on 8-11 Aug. Gusty wind occurred in Chanthaburi province on 11 Aug. 160.0 mm at Ko Chang Trat on 8 Aug. 
Southern Part (East Coast)
Isolated to scattered rain throughout the week. Heavy to very heavy rainfall occurred in some areas on the first day of the week and during the weekend. Gusty wind occurred in Songkhla province on 8 Aug. 99.4 mm at Chanae Narathiwat on 8 Aug. 
Southern Part (West Coast)
Isolated rain almost the week with heavy rainfall in some areas on the last day of the week. 53.0 mm at Khao Chong Botanical Garden, Na Yong Trang on 14 Aug. 
Metropolitan
Fairly widespread rain with heavy rainfall in some areas on 8, 11 and 12 Aug. Isolated to scattered rain for the rest days. 50.0 mm at Wat Suthi Sa-ard School Khet Khlong Sam Wa on 8 Aug. (47.1 mm at Samut Prakan Agromet. Stn., Bang Phli Samut Prakan on 12 Aug.)  
Weekly total Rainfall and Weekly mean minimum temperature Map
Issued Date August 15, 2022