Weather
Advisory
Subject:
Heavy to Very Heavy Rain in Thailand
No.13 (140/2026)
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During 29–30 July 2026, the monsoon
trough lies across the upper North and the Northeast of Thailand while the rather
strong southwest monsoon prevails over the Andaman Sea, Thailand and the Gulf. Isolated
heavy rains are forecast in the country and isolated very heavy rains are
possible in the North, the Northeast, the Central, the East and the South (west
coast) regions. People should beware of heavy to very heavy rains and
accumulation that may cause flash floods, overflows and landslides especially
along the waterways near foothills and lowlands.
The rather
strong winds force the waves in the upper Andaman Sea up to 2–3 meters high and
above 3 meters high in thundershowers. In the lower Andaman Sea and the upper
Gulf, the waves are expected to be about 2 meters high and above 2 meters high
in thundershowers. All ships in the Andaman Sea and the Gulf should proceed
with caution and keep off thundershowers, small boats in the upper Andaman Sea
should keep ashore.
The advisory is in effect on 29 July 2026,
at 5.00 p.m.
This next issue will be on 30 July 2026, at 5.00 a.m.
(Signed) Sugunyanee
Yavinchan
(Miss Sugunyanee Yavinchan)
Director-General
Thai Meteorological Department