Kornrawee Sitthichivapak, the department's deputy director-general, said that tropical storm "Linfa" covering Laos has weakened to monsoon depression which would soon reach Thailand's Northeast, affecting Mukdahan, Roi Et, Yasothon, Amnat Charoen, Ubon Ratchathani, Sisaket, Surin, Buriram and Nakhon Ratchasima.

The monsoon trough and southwest monsoon are other factors that would increase the volume of rain in provinces in the southern region, such as Phetchaburi, Prachuap Khiri Khan, Krabi, Phuket, Phang-nga, Satun and Trang.

Moreover, Thailand might also be confronted by a depression in the South China Sea becoming a tropical storm, while a low-pressure area near the Philippines had the potential of growing stronger.

Provinces in Northeast, South in the line of fire from increased storm activity

Three storms could be heading Thailand's way and nine provinces in the Northeastern region could face the direct impact, the Thai Meteorological Department has warned.