Tropical storms Lionrock and Kompasu are expected to hit Thailand between Monday and Wednesday, which may affect the Northeast and Central regions.
The first storm is in the South China Sea, while the second one is in the Pacific Ocean near the Philippines.
Although the storms will not hit Thailand directly, more rain is expected in the western and upper part of the South and lower Central regions, the upper Northeast and upper North.
The worst-hit provinces may be Ranong, Phangnga and Phuket.
Meanwhile, the Department of Disaster Prevention and Mitigation has warned 14 Central region provinces, the East and the South to brace for flash floods and landslides due to excess water released from dams until Sunday.
The 14 provinces are Kanchanaburi, Ratchaburi, Chanthaburi, Trat, Phetchaburi, Prachuap Khiri Khan, Chumphon, Surat Thani, Ranong, Phangnga, Phuket, Krabi, Trang and Satun.
