Thailand Meteorological Department today issued the latest warning of heavy to heaviest rains in the upper part of the country covering 28 provinces, starting tonight as depression "Rai" has gained momentum and turned into a tropical storm as it is approaching the Vietnamese coast of Danang this morning.
Thailand's northeastern region will be first affected by the tropical storm after it makes landfall on the central Vietnamese shore and dissolves to tropical depression.
The centre of the Rai tropical storm at 4.00am today was 150 kilometres east of Danang.
With its wind speed of 65 kms/hr near the centre, Rai was moving northwesterly to the Vietnamese shore at 20 kms/hr.
It is expected to make landfall on Danang coast today, and then dissolves to depression and moves forward to the upper part region of Thailand.
Along the path it moves, the tropical storm, now dissolves to depression, will unleash heavy to heaviest rainfall through to end of the week, starting from the Northeast, East, Central and North.
The people living in 28 provinces along its path were advised to brace for relentless rainfalls, landslides, flash floods, floods and gales that are expected tonight.
Affected by the tropical depression Rai include Sakhon Nakhon, Nakhon Phanom, Mukdaharn, Amnart Charoen, Ubon Ratchathani, Surin, Buriram, Sisaket, Roi Et, Kalasin Khon Kaen, Chaiyaphum, Nakhon Ratchasima, Prachinburi, Chonburi, Rayong, Chanthaburi, Trat, Chiang Mai, Chiang Rai, Lamphun, Lampang, Phayao, Phrae, Nan, Uttaradit, Phitsanulok, and Phetchabun.
Meanwhile winds in the Andaman Sea and the Gulf of Thailand will be strengthened, and 2-3 metres high waves are expected during the period from September 13-18.
Small boats are advised to remain on shores.
Source: Thai Public Broadcasting Service (Thai PBS)