Weather
Advisory
Subject:
Heavy to very heavy rains in Thailand,
Strong
Wind-Waves in the Andaman Sea
No. 9
(87/2026)
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The
rather strong southwest monsoon prevails over the Andaman Sea, the South and
the Gulf while the monsoon through lies across upper Thailand. Continuous
rainfalls and isolated heavy rains are forecast in the country while isolated
very heavy rains are possible in the South (west coast) region. People in Thailand
should beware of heavy to very heavy rains and its accumulation that may cause
flash flood and overflows, especially along foothills near waterways and
lowlands.
The
rather strong wind forces the waves in the upper Andaman Sea from Phuket
northward up to be 2–3 meters high and above 3 meters high in thundershowers.
In the lower Andaman Sea from Krabi downward and the upper Gulf, the waves are
expected about 2 meters high and above 2 meters high in thundershowers. All
ships should proceed with caution and keep off thundershowers, small boats in
the upper Andaman Sea keep ashore.
This
advisory is in effect on 31 May 2026, at 5.00 a.m.
This next issue will be on 31 May 2026, at 5.00 p.m.
(Signed)
Sugunyanee Yavinchan
(Miss Sugunyanee Yavinchan)
Director-General
Thai Meteorological Department