
The rains could be unleashed by influence of a low pressure ridge over China Sea and the monsoon wind over the Andaman Sea.
The provinces are Mae Hong Son, Chiang Mai, Chiang Rai, Phayao, Nan, Lamphun, Lampang, Prae, Sukhothai, Kamphaeng Phet, Phitsanulok, Phetchabun, Loei, Nong Bua Lampu, Chaiyaphum, Nakhon Ratchasima, Buriram, Surin, Si Sa ket, Ubon Ratchathani, Nakhon Nayok, Prachinburi, Chanthaburi, and Trat.
The Nation