from their website:
Weather Forecast
During 18 – 24 June 2024
During 18 - 19 Jun, the southwest monsoon prevails over the Andaman Sea, Thailand and the Gulf while the low-pressure cell covers upper Vietnam and the Gulf of Tonkin with isolated thundershowers in the country and isolated heavy rains in the upper Northeast, the East and the South (west coast). The moderate wind and waves in the upper Andaman Sea are likely 1 - 2 meters high and above 2 meters high in thundershowers. During 20 – 24 Jun, the southwest monsoon prevailing over the Andaman Sea, Thailand and the Gulf will strengthen while during 21 – 24 Jun, the monsoon trough will lie across Myanmar and upper Laos into the low-pressure cell over upper Vietnam and the Gulf of Tonkin. More rains and isolated heavy rains are likely in the country while isolated very heavy rains are possible in eastern of the Northeast, the East and the South (west coast). The strengthening wind forces the wave in the upper Andaman Sea are likely about 2 meters high, 1 – 2 meters high in the lower Andaman Sea and the gulf and above 2 meters high in thundershowers.
If you check their warnings, there are none. Who writes this stuff?