Weather
Advisory
Subject:
Heavy to very heavy rains in Thailand,
Strong
Wind-Waves in the upper Andaman Sea
No. 10 (70/2026)
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The
southwest monsoon prevailing over the Andaman Sea, Thailand and the Gulf is
strengthening with isolated heavy rain mostly in western part of the country and
the upper Northeast while isolated heavy to very heavy rains are likely in the
South (west coast) and the East regions. People in the areas should beware of
heavy to very heavy rains and accumulations 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 up to be 2–3
meters high and above 3 meters high in thundershowers. In the lower Andaman Sea
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.
In
addition,
low-pressure cell over Gulf of Martaban is expected to intensify during 19 –
22 May 2026 with more rain and isolated heavy to very heavy rains are
forecast in the western part of country, the North, the upper Northeast, the
East and the South (west coast) regions.
This
advisory is in effect on 17 May 2026, at 5.00 p.m.
This next issue will be on 18 May 2026, at 5.00 a.m.
(Signed)
Sugunyanee Yavinchan
(Miss Sugunyanee Yavinchan)
Director-General
Thai Meteorological Department