Thailand braces for storms and rough seas as TMD issues weather warning.
Thunderstorms are forecast across large parts of Thailand today, with the Thai Meteorological Department warning of dangerously rough seas in the Andaman Sea and Gulf of Thailand.
The TMD’s 24 hour forecast, issued on July 5, points to a monsoon trough draining across upper North Thailand and northern Laos into tropical storm Maysak, combined with a strong southwest monsoon sweeping the Andaman Sea, mainland Thailand and the Gulf of Thailand.
Residents in upper North Thailand, upper Northeast Thailand and East Thailand should prepare for very heavy rain in some areas. The TMD flagged a risk of flash floods and runoff, particularly near foothills, waterways and low lying land.
Sea conditions have also worsened. Waves in the upper Andaman Sea are running 2 to 3 metres high, rising above three metres in thundery areas. The lower Andaman Sea and upper Gulf of Thailand are seeing waves of about 2 metres, exceeding two metres where storms hit.
The TMD urged boats in both the Andaman Sea and Gulf of Thailand to sail with caution and avoid thundery patches altogether. Small boats in the upper Andaman Sea have been told to stay in port until conditions ease, reported Matichon.
North Thailand
Storms are expected across 70% of the region, with heavy rain in Mae Hong Son, Chiang Mai, Lampang, Phayao, Phrae, Uttaradit, Phitsanulok and Phetchabun. Very heavy rain is possible in Tak, Chiang Rai and Nan.
Temperatures will range from 23 to 25 degrees Celsius at the low end and 31 to 34 degrees Celsius at the high end, with southwest winds of 10 to 20 kilometres per hour.
Northeast Thailand
Storms will cover 70% of the region, with heavy rain forecast in Loei, Udon Thani, Sakon Nakhon and Mukdahan. Very heavy rain may fall in Nong Khai, Bueng Kan and Nakhon Phanom.
Temperatures will sit between 23 and 26 degrees Celsius at the low end and 30 to 34 degrees Celsius at the high end, with southwest winds of 10 to 20 kilometres per hour.
Central Thailand
Storms are forecast over 60% of the region, with heavy rain in Ratchaburi and Uthai Thani, and very heavy rain possible in Kanchanaburi.
Temperatures will range from 24 to 26 degrees Celsius at the low end and 32 to 35 degrees Celsius at the high end, with southwest winds of 10 to 25 kilometres per hour.
East Thailand
Storms will affect 70% of the region, with heavy rain expected in Nakhon Nayok, Prachin Buri, Sa Kaeo, Chachoengsao, Chon Buri and Rayong. Very heavy rain may hit Chanthaburi and Trat.
Temperatures will range from 24 to 27 degrees Celsius at the low end and 30 to 32 degrees Celsius at the high end, with southwest winds of 20 to 35 kilometres per hour. Sea waves will reach about 2 metres, rising above two metres in thundery areas.
South Thailand (East Coast)
Storms are expected over 30% of the region, mainly in Phetchaburi, Prachuap Khiri Khan and Narathiwat.
Temperatures will range from 23 to 24 degrees Celsius at the low end and 32 to 35 degrees Celsius at the high end.
From Surat Thani northwards, southwest winds of 20 to 35 kilometres per hour will bring waves of 1 to 2 metres, rising above two metres further offshore in thundery areas. From Nakhon Si Thammarat southwards, winds of 15 to 30 kilometres per hour will bring waves of about 1 metre, rising above two metres in thundery patches.
South Thailand (West Coast)
Storms will cover 30% of the region, mainly in Ranong and Phang Nga.
Temperatures will range from 23 to 25 degrees Celsius at the low end and 32 to 36 degrees Celsius at the high end.
From Phuket northwards, southwest winds of 20 to 40 kilometres per hour will bring waves of 2 to 3 metres, rising above three metres in thundery areas. From Krabi southwards, winds of 20 to 35 kilometres per hour will bring waves of about 2 metres, rising above two metres in thundery patches.
Bangkok and Vicinity
Rain and thunderstorms are forecast across 60% of the area. Temperatures will range from 25 to 27 degrees Celsius at the low end and 30 to 34 degrees Celsius at the high end, with southwest winds of 10 to 25 kilometres per hour.
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