Chatchai Phromlert, director general of the Department of Disaster Prevention and Mitigation (DDPM),
said the 13 provinces were Tak, Sukhothai, Phitsanulok, Uttaradit, Phetchabun, Chiang Mai, Mae Hong Son, Lampang, Lamphun, Chiang Rai, Phayao, Phrae and Nan.
Urging people in at-risk areas to follow the weather forecast and disaster warnings for timely evacuation if needed, he said the DDPM had local officials monitoring the situation around the clock and preparing tools to aid people in case of emergency. People in need of assistance should call the hotline at 1784.