The weak high pressure covers upper Thailand and the South China Sea. Less summer thunderstorms are likely upper Thailand and a rise in temperature while thundershowers, gusty winds in the North and the Central. People should keep off unsecured building and outdoor and farmers beware of crop damage.
Affected areas are as following:
North: Mae Hong Son, Chiang Mai, Chiang Rai, Lamphun, Lampang, Phayao, Nan and Phrae.
Central: Uthai Thani, Chai Nat, Kanchanaburi, Suphan Buri and Ratchaburi.
South: Phetchaburi, Prachuap Khiri Khan and Chumphon.
This final advisory is effect on 18 April 2018, at 11.00 a.m.
(Signed) Wanchai Sakudomchai
(Mr. Wanchai Sakudomchai)
Thai Meteorological Department
Article source: http://www.tmd.go.th/en/warningwindow.php?wID=6983