Weekly Weather Summary
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September 14, 2018 - September 20, 2018Max. Rainfall AmountMax. Temperature
Thailand
The monsoon trough lay across lower northern, upper central and lower northeastern parts during early period and it lay over lower central, upper southern and eastern parts on 16 and 20 Sep. In addition, the active southwest monsoon prevailed over the Andaman Sea, Thailand and the Gulf of Thailand nearly the whole period and the southeasterly wind prevailed over the eastern and lower northeastern parts on 19 Sep. These conditions caused rainfall over Thailand mainly during early and late period while southern part received rainfall throughout the period. By the way, typhoon \"MANGKHUT (1822)\" in the upper South China Sea made landfall over southern China at Jiangmen City, Guangdong Province in the evening of 16 Sep after that it moved further in land and downgraded respectively into the tropical storm and tropical depression before degenerated into an areas of active low pressure over Yunnan Province in the morning of 18 Sep and dissipated in the next time.    
Northern Part
Scattered to fairly widespread rain with heavy rainfall in some areas except for isolated rain with heavy to very heavy rainfall in some areas on 16, 17 and 20 Sep. Land slide occurred at Mae Hong Son province on 16 Sep and gusty wind at Chiang Mai province on 17 Sep. 140.6 mm at Pua Nan on 17 Sep. 
Northeastern Part
Scattered to fairly widespread rain with heavy to very heavy rainfall in some areas except for isolated rain with heavy to very heavy rainfall in some areas on 15 and 16 Sep. 152.0 mm at Phuluang Wildlife Sanctuary Loei on 18 Sep. 
Central Part
Fairly widespread rain and heavy rainfall in several areas during early period then decreasing in rainfall to isolated to scattered rain. 58.3 mm at Sangkhla Buri Kanchanaburi on 14 Sep. 
Eastern Part
Fairly widespread rain except for isolated to scattered rain with heavy rainfall in some areas on 16, 17 and 20 Sep. Heavy to very heavy rainfall was reported in several areas mainly in the lower coastal areas during the early and mid-period. Flood occurred at Trat province on 17 Sep. 303.0 mm at Ratchasan Chachoengsao on 16 Sep. 
Southern Part (East Coast)
Fairy widespread rain almost the whole period with heavy to very heavy rainfall in some areas. 134.0 mm at Ranot Songkhla on 16 Sep. 
Southern Part (West Coast)
Fairy widespread rain with heavy rainfall in several areas and very heavy rainfall in some areas during early and mid-period then decreasing in rainfall to isolated to scattered rain. Floods occurred at Satun province on 15 Sep and at Phang-nga province on 18 Sep. 110.5 mm at Mueang Satun on 14 Sep. 
Metropolitan
Fairy widespread rain with heavy to very heavy rainfall in some areas except for isolated to scattered rain with heavy rainfall in some areas on 16 – 17 Sep. 172.5 mm at Wat Sub Samosorn School Khet Nong Chok on 19 Sep. (66.6 mm at Khlong Luang Pathum Thani on 14 Sep.)  
Weekly total Rainfall and Weekly mean minimum temperature Map
Issued Date September 21, 2018