Weather
Advisory
Subject:
Heavy to Very Heavy Rain in Thailand and strong wind in the Andaman Sea
No.7
(211/2026)
----------------------------
During 18 - 20 September 2026, isolated heavy to very heavy rains are likely in the
North and the Northeast for the first
period
then the Central, the East and the Southern region on the day (On 18
September 2026).
The
high-pressure system from China will extend to the upper North and upper
Northeast of Thailand leads to the monsoon
trough move to lie across lower Central, the upper South, the upper Gulf and the
Eastern region. Meanwhile, the southwest monsoon prevailing over the Andaman
Sea, Thailand, and the Gulf will strengthen.
People
in the country 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 and waves in the Andaman Sea are expected 2 - 3 meters and
above 3 meters high in thundershowers. All ships should proceed with caution
and keep off thundershowers. Small boat in the upper Andaman Sea should keep
ashore during 18 – 20 September 2026.
The advisory is in effect on 18 September
2026, at 5.00 a.m.
This next issue will be on 18 September 2026, at 5.00 p.m.
(Signed) Sugunyanee Yavinchan
(Miss
Sugunyanee Yavinchan)
Director-General
Thai Meteorological Department